Forum Replies Created

Viewing 200 posts - 1 through 200 (of 287 total)
  • Author
    Posts
  • in reply to: Collaboration #1466

    Hiroshi Yamaura
    Keymaster

    Try to right click the “download” button and select “save the link as…”

    in reply to: Collaboration #1464

    Hiroshi Yamaura
    Keymaster

    We asked an expert to have a look at the format, and she said it cannot be edited and requires the original code.

    Maybe you used STL file. You can find other formats(such as STEP file) from the link.
    https://github.com/mission-arm/HACKberry/tree/master/HACKberry_3Dmodel

    However, changing the hand size is not so easy.
    You will also should change PCB size and motor size.

    Therefore, I recommend to change only socket size for now.
    You can find the discussion here.

    Socket Fit

    in reply to: Collaboration #1462

    Hiroshi Yamaura
    Keymaster

    Hi Alyona,
    Have you already checked BOM?
    https://docs.google.com/spreadsheets/d/116ThoPHAKhcy_gyfd6WqXMeeBQ91X1kE8dL2MeQv8go/edit?usp=sharing

    This file can be used for finding substitutions in other contries.
    You can also check the discussion from the link below.

    buy Hardware

    in reply to: Resizing arm #1453

    Hiroshi Yamaura
    Keymaster

    This topic may help you.

    Socket Fit

    in reply to: Dual Color Printing #1281

    Hiroshi Yamaura
    Keymaster

    Hi Ashton,
    Check this topic. http://exiii-hackberry.com/forums/topic/color-separated-hackberry-without-painting/
    Maybe Yuki’s data is what you need.

    in reply to: PCB for 2 sensors #1279

    Hiroshi Yamaura
    Keymaster

    The name of the hand is HACKberry. exiii is our company name.

    As for HACKberry project, Mission ARM Japan(MAJ) took over this project from exiii.
    If you need the collaboration as organization, please get in touch with MAJ.
    info[at]mission-arm.jp

    For other things, contact me from Facebook or LinkedIn.

    BTW, could you upload the picture of broken thumb?
    Please clarify the week point.
    We may be able to find the way to reinforce.


    Hiroshi Yamaura
    Keymaster

    Mmm, so am I.
    Maybe it is mistake or something.

    in reply to: Hardware Kit #1272

    Hiroshi Yamaura
    Keymaster

    Hi Analisa,
    as for hardware kit, exiii no longer deal with it.
    A non-profit organization called Mission ARM Japan (MAJ) took over HACKberry project.
    I can’t assure you that they can accept the order but please get in touch with them for now.
    The e-mail is as follows.
    info[at]mission-arm.jp

    Thanks,

    in reply to: PCB for 2 sensors #1270

    Hiroshi Yamaura
    Keymaster

    This topic is for 2 sensors PCB.
    Please use other topic to avoid the confusion.

    I just answered your question on this topic.

    左手用の基板について Question about PCB for left hand

    Thanks,


    Hiroshi Yamaura
    Keymaster

    左手用の基板の回路図について質問がありましたが、こちらには左手用基板の回路図はありません。
    あくまで参考にしかなりませんが、160824HandBoard_left_v1の
    表面と裏面のパターンの図を置いておきます。

    View post on imgur.com

    View post on imgur.com

    I got the request for uploading the diagram of left hand board.
    Unfortunately, I don’t have the one.

    This pictures are front and back side of garber data for 160824HandBoard_left_v1.
    I hope it will help somebody’s understanding.

    in reply to: PCB for 2 sensors #1262

    Hiroshi Yamaura
    Keymaster

    Hi Michel.
    I saw the link. The educational kit looks nice.
    As for github, which repository do you want to add the data to?
    exiii’s one? or MHK’s?
    https://github.com/exiii/HACKberry
    https://github.com/MHKit/mhk-exii

    in reply to: PCB for 2 sensors #1259

    Hiroshi Yamaura
    Keymaster

    Hi Nico,
    Yeah, I saw your recent movie. It is fabulous!
    I was really surprised and pleased to see you use HACKberry very well.

    I also saw Google France’s movie. That’s great.

    As for PCB, please try it.
    https://drive.google.com/drive/folders/0B_O4N8Ng5KyZaC1HZjRneENfbWM?usp=sharing

    [Before]

    View post on imgur.com

    [After]

    View post on imgur.com

    I simply reconnect one of 3 pole headphone jack pins to A3 instead of Vcc.

    in reply to: Force/Torque finger tips applying #1258

    Hiroshi Yamaura
    Keymaster

    We’ve not measured the force applied to finger tip. We measured its grip strength. It was about 1[kgf].
    As for finger tip,
    – moment arm is about 7[cm]
    – motor torque is 4.4 [kgf・cm]
    Therefore, maybe the force is about 0.6[kgf] (index finger).

    指先力は測定していないです。寸法やモータースペックから考えるとおそらく0.6 kgf程度ではないでしょうか。
    握力計は試してみたのですが、およそ1[kgf]でした。

    in reply to: Textures & Aesthetics #1257

    Hiroshi Yamaura
    Keymaster
    in reply to: Socket Fit #1251

    Hiroshi Yamaura
    Keymaster

    This is not exactly the same one but may help you.
    http://a360.co/2ksQYL1
    It is the latest socket for our collaborator Morikawa-san.

    View post on imgur.com

    in reply to: EMG Sensors #1247

    Hiroshi Yamaura
    Keymaster

    HACKberry is simply controlled by analog input voltage within 0 to 5[V].
    The type of sensor does not matter.

    in reply to: EMG Sensors #1246

    Hiroshi Yamaura
    Keymaster

    Hi, check these links. Using EMG sensor is not impossible.
    Some people already succeeded.

    EMG

    PCB for 2 sensors

    in reply to: Development of HandBoard_v2 #1244

    Hiroshi Yamaura
    Keymaster

    You are welcome. I hope your project goes well!

    in reply to: Development of HandBoard_v2 #1242

    Hiroshi Yamaura
    Keymaster
    in reply to: Development of HandBoard_v2 #1240

    Hiroshi Yamaura
    Keymaster

    Of course, I do. What do you mean?

    in reply to: Development of HandBoard_v2 #1238

    Hiroshi Yamaura
    Keymaster

    That is step down voltage regulator.
    The battery’s voltage is 7.2[V]. Input for servo motors is 5.0 [V].

    what is the function of Batt Contact probe?

    The battery(DMW-BLF19) has flat terminals.

    https://www.amazon.com/dp/B01IMRAKRK/

    The battery contact probe enables us to get stable conduction from the terminals.
    If you use other type battery, you don’t need to get the probe.

    in reply to: Development of HandBoard_v2 #1233

    Hiroshi Yamaura
    Keymaster

    Have you already checked the page?
    http://exiii-hackberry.com/dw/doku.php?id=how_to_order

    in reply to: Finger Movement #1230

    Hiroshi Yamaura
    Keymaster

    Based on the mechanism.
    The video will help your understanding.

    in reply to: サーボの最大電流に関して #1227

    Hiroshi Yamaura
    Keymaster

    大小どちらのサーボも同等のスペック、サイズのモータで実測したところ大きな負荷が加わる際の瞬時値で750mA程度でした。
    母指のモータがストールする可能性が低い事を考えると、2Aでも問題ないかもしれません。

    in reply to: Starting project Brasil-Russia #1221

    Hiroshi Yamaura
    Keymaster

    Hi Elcio,

    Any tips on making the PCB board using milling machines?

    We disclosed PCB data for Kicad.
    You can generate gerber data using Kicad.
    As for converting gerber to g-code, please check other web sites.
    I used IronRuby and Gynostemma-PCB for the converting. It worked well.
    However, it seems that it doesn’t support English unfortunately.

    Finally, I also recommend you to use PCB manufacturing service. It is much more easy, stable and not so expensive.
    https://docs.google.com/document/d/1lNPcouGmjLMe7-bAQ6hxlp5movhy_fizSsHiVVOBsjk/edit?usp=sharing

    in reply to: Orientation for 3D printing #1201

    Hiroshi Yamaura
    Keymaster

    Hi Krzysztof,
    That indicated the name of Inventor assembly files.
    You can find what parts are contained in each assembly files from the list.
    If you don’t use Inventor, please ignore them.

    View post on imgur.com

    in reply to: buy Hardware #1197

    Hiroshi Yamaura
    Keymaster

    Hi Florian, sorry for my late reply.
    As for the parts list, please check the following link.
    https://docs.google.com/spreadsheets/d/116ThoPHAKhcy_gyfd6WqXMeeBQ91X1kE8dL2MeQv8go/edit?usp=sharing
    (It seems that “M Freard” had added the information about delivery in France. Thanks!)

    Moreover, Nico’s assault would also be very helpful.
    http://exiii-hackberry.com/forums/users/nico_huchet/topics/

    Myoelectric Exiii hand

    in reply to: PCB for 2 sensors #1193

    Hiroshi Yamaura
    Keymaster

    Congrats Nico!
    The functions sound very nice.
    I think it really expand the possibilities for HACKberry.
    We’re looking forward to see your video. Thanks!

    in reply to: EMG #1192

    Hiroshi Yamaura
    Keymaster

    無事に動いて良かったです。
    もしも差し支えなければ、動いてる様子の動画等アップロードして頂けると嬉しいです。
    (Youtubeにアップロード・共有リンクを貼り付けて頂くような形で)

    未使用ボタンで信号を反転させるのは良いアイデアですね!
    複数センサへの対応だけでなく、同じセンサを使っていても
    脱力と緊張の関係を反転させたいという要望はありますので。

    Using surplus button to invert signal is good idea!
    Not only for adapting different type of sensors,
    it also can be used for changing the rule in the same sensor.
    Some people said that they want to keep holding the object without muscle contraction.

    in reply to: EMG #1188

    Hiroshi Yamaura
    Keymaster

    川上先生

    失礼致しました、現状のフォトリフレクタを用いたセンサは筋肉に力を入れるほど値が小さくなるので、
    EMGセンサとは逆の振る舞いになっています。
    以下の流れで、Arduinoスケッチ上で増減の方向を反転して頂けますでしょうか。

    以下のポストで同様の議論をしています。

    サーボモーターの動作が逆になります?

    1.本日(2016/11/02)時点で最新版のArduinoスケッチをダウンロードしてください
    https://github.com/exiii/HACKberry/blob/master/HACKberry-software/HACKberry_v1/HACKBerry_v1/HACKBerry_v1.ino

    200行目を以下のように変更して、再度Arduinoに書き込んでください。
    <変更前>
    sval = sval + abs(1023 – analogRead(analogInPin0));
    <変更後>
    sval = sval + analogRead(analogInPin0);

    Sorry, the output of EMG sensor should be inverted for HACKberry.
    Please download the latest arduino sketch and fix the following part at 200 lines.
    https://github.com/exiii/HACKberry/blob/master/HACKberry-software/HACKberry_v1/HACKBerry_v1/HACKBerry_v1.ino

    [before]
    sval = sval + abs(1023 – analogRead(analogInPin0));
    [after]
    sval = sval + analogRead(analogInPin0);

    in reply to: Sensor board #1184

    Hiroshi Yamaura
    Keymaster

    The benefit of this method is the price and the usability.
    Dry type EMG sensor is expensive.
    Wet type EMG sensor is not easy to use because we have to change adhesive disposable electrodes everytime.
    The IR sensor method can easily measure the muscle contraction level stably with affordable price.
    Maybe you can’t recognize all fingers movement individually by using the IR sensor method.

    in reply to: How do I get pcb boards? #1179

    Hiroshi Yamaura
    Keymaster

    exiii updated the pcb data for pcb manufacturing service.
    SeeedStudio will accept the data and will ship the PCBs to many countries.
    For more detail, please check this document.
    https://docs.google.com/document/d/1lNPcouGmjLMe7-bAQ6hxlp5movhy_fizSsHiVVOBsjk/edit?usp=sharing

    in reply to: PCB for 2 sensors #1177

    Hiroshi Yamaura
    Keymaster

    Hi Nico,
    I’m relieved to hear that you could get all components.

    As for DC-DC converter, yes, I selected the module because it can supply maximum 3A.
    In our study, the maximum stall current of large servo(3001HB) is about 750mA
    and that of small servo(ES08MD) is about 800-1000mA.
    We’ve not tested but the total current will be more than 1A when all servo will stall.

    in reply to: Troubleshooting Finger Movement Problems. #1173

    Hiroshi Yamaura
    Keymaster

    I guess the circuit board was to tight, and caused connection problems.

    I experienced the same problem. Please make sure the reset switch of Arduino Micro is not pressed by DC-DC converter.

    動作のフリーズについて

    In that case, you can add tiny plastic fragment to prevent it.

    動作のフリーズについて

    I would like to help him with a EXO Skeletal system

    Sounds great! There are many exoskeleton projects using 3D printer.
    http://www.roboticstrends.com/article/3d_printed_hand_exoskeleton_simplifies_rehab/3d_printers
    I think HACKberry’s sensor system can be combined with some of them.

    Thank you for the update.

    in reply to: PCB for 2 sensors #1169

    Hiroshi Yamaura
    Keymaster

    OK, I just created Google spread sheet to solve this problem.
    https://docs.google.com/spreadsheets/d/116ThoPHAKhcy_gyfd6WqXMeeBQ91X1kE8dL2MeQv8go/edit?usp=sharing
    Let’s complete this sheet.
    Could you let me know which parts are difficult to get in EU?
    Please arrange this sheet directly.

    One more question, should the components be shipped to France?

    in reply to: percentage of filling model? #1167

    Hiroshi Yamaura
    Keymaster

    We have not fix that specification.
    We usually use “big hole” in the UP! software.
    It may be 50% or less density.
    Most of parts are durable even if it is printed with this setting.
    However, if you have a trouble, please use higher density especially for smaller or thinner parts.

    in reply to: Troubleshooting Finger Movement Problems. #1163

    Hiroshi Yamaura
    Keymaster

    2) The “Thumb” does not move when I push the “Thumb” button.

    As Tima said, please check whether servo moves properly or not before installing.

    Please explain how to do the following steps in the assembly section so I can troubleshoot the issue:
    1) Set servo motor’s degree at pre-set index extended degree in the Arduino program.
    – 写真のように“HbPalmBase03”に“Servo motor Large”を取り付けます。 サーボモータを取り付ける前に、Arduinoを接続した基板等を用いて、人差し指の角度を伸ばした時の角度に設定します。

    Simply connect the PCB, the battery and servo. Then, turn on the switch. The servo motor large will go to extended angle.
    The processes are explained in the following page.
    http://exiii-hackberry.com/dw/doku.php?id=how_to_assemble:socket02

    Also, Do I calibrate the servo’s to 5 volts or 6 volts?

    As for calibration, that voltage will not affect the position of servo motor.
    It just affect the torque.
    We recommend you to use 5[V] because it is safer but if you need higher torque, you can use 6[V].
    It is in the ranges of rating voltage.
    https://www.pololu.com/product/1058/specs
    http://www.emaxmodel.com/es08md.html

    in reply to: Troubleshooting Finger Movement Problems. #1159

    Hiroshi Yamaura
    Keymaster

    Hello,
    Congratulations for completing assembly!(We also want to say thank you to Tima)
    I’ll answer your question one by one.

    1) The “Middle, Ring & Little” fingers do not always fully extend when the Index finger does.

    First, please make sure your fingers can be moved without friction.
    If there are frictions, enlarge the shaft hole or polish that part until they can move smoothly.
    Then, make sure the linkage connected to little finger is fixed to the top of servo horn.
    Since servo horn has many holes, the linkage sometimes be fixed to wrong holes.

    View post on imgur.com

    Next, temporarily remove the servo horn from the servo.
    You can move the servo to extended position using Arduino without servo horn.
    After moving the servo, set the servo horn with little finger extended.

    Maybe your problem will be solved but if you still have the problem,
    You can adjust the servo movement from Arduino sketch.
    The angle of the servo is defined at 66 and 67 lines.
    https://github.com/exiii/HACKberry/blob/master/HACKberry-software/HACKberry_v1/HACKBerry_v1/HACKBerry_v1.ino

    You will find the statement

    int middleMin = 100;//extend

    int middleMax = 15;//flex

    You can adjust the position and the range of little finger movement by changing this value.

    I’ll answer other questions later.

    in reply to: Job at Open Bionics Electronics Engineer #1155

    Hiroshi Yamaura
    Keymaster

    Hi Joel,
    I always check Open Bionics’s great progress. Congratulations.
    Of course we don’t mind your post.
    We hope you will find good electronics engineer and will go further.
    Thanks,


    Hiroshi Yamaura
    Keymaster

    本件、加藤さんと直接会ってやり取りさせて頂いたのですが、
    他の方のために情報共有します。

    エラーメッセージの内容が
    ・ReadSens_and_Conditionが宣言されていない
    ・calibrationが宣言されていない
    というものだったので、
    スケッチのはじめに
    void calibration();
    int ReadSens_and_Condition();
    の二行を加えてみたところ、エラーがでなくなりました。

    根本的な対策ではないですが、もし同様の症状で困っている方がいましたら
    暫定の対応として試してみて下さい。

    in reply to: New Project in USA #1151

    Hiroshi Yamaura
    Keymaster

    Hi Alex,
    Thank you for your kind offer!
    By all means, please do so.
    It’ll be very helpful.


    Hiroshi Yamaura
    Keymaster

    社内で同じ環境(Arduino:1.6.11 Mac OS X)で作業したメンバーがおりまして、
    「同一のエラーメッセージが出て困ったがPCを再起動したらコンパイルできるようになった」
    というケースがあったそうです(原因は不明です)。

    不確かな内容で恐縮なのですが、もしお時間があれば再起動もお試しください。
    よろしくお願い致します。


    Hiroshi Yamaura
    Keymaster

    ご確認ありがとうございます。
    そうなると、今のところどこに原因があるのか分からないですね…
    定例会には私も参加予定ですので、どこかのタイミングでお話させて頂けると幸いです。
    よろしくお願い致します。

    in reply to: HACKberry BM model #1145

    Hiroshi Yamaura
    Keymaster

    Kawakami-san,

    Modification of HACKberry’s appearance is rare. We’re very excited to see it.
    We hope more paticipants will enjoy this kind of hacks.
    Thank you so much for sharing cool design!


    Hiroshi Yamaura
    Keymaster

    情報ありがとうございます。
    Githubのソースコードを改めてダウンロードして試してみたのですが、
    こちらの環境では再現することができませんでした。

    原因を考えてみたのですが、仮に244行目(int sensorMin_temp;)以降の
    行を消去した場合同じエラーメッセージが表示されます。

    お手元のスケッチとGithub(https://github.com/exiii/HACKberry/blob/master/HACKberry-software/HACKberry_v1/HACKberryLeft_v1.1/Hackberry_Left_v1.1/Hackberry_Left_v1.1.ino)を見比べて、244行目以降が含まれているかご確認頂けますでしょうか?

    よろしくお願いします。

    in reply to: PCB for 2 sensors #1138

    Hiroshi Yamaura
    Keymaster

    You are right. Check this instruction for more detail regarding order.

    https://docs.google.com/document/d/1lNPcouGmjLMe7-bAQ6hxlp5movhy_fizSsHiVVOBsjk/edit?usp=sharing
    If you have any troubles, please let us know.

    in reply to: PCB for 2 sensors #1135

    Hiroshi Yamaura
    Keymaster

    Thank you for your understanding and kind words, Nico.
    We wish we could continue the selling but as you said, it was not so easy and time consuming.

    As for the PCBs, I am little surprised to hear that you’ve got them so fast.
    Please give us your feedback about it. Thanks!

    in reply to: Starting new project in Italy #1132

    Hiroshi Yamaura
    Keymaster

    Hi Marco,
    Sorry for late my reply.
    Thank you for your interest in our project.
    I think our cooperation with prosthetists and therapists is indispensable for this project.
    You’re more than welcome!

    I recommend you to create original HACKberry first.
    You should find collaborator who can use 3D printer and Arduino.
    Or you can try them by yourself.
    These technologies become common and they’re not so difficult.
    You can find so many tutorials regarding them on the internet.

    in reply to: PCB for 2 sensors #1129

    Hiroshi Yamaura
    Keymaster

    Hi Michael, Nico,

    Sorry, the kit is no longer available from exiii.
    https://www.facebook.com/exiii.jp/posts/1188542201168176

    If you need, please get each components separately from the store listed on the BOM.
    https://github.com/exiii/HACKberry/blob/master/HACKberry-hardware/HACKberry_BOM_v1.xlsx

    As for PCB and 3D printing parts, please get them by using following document.
    https://docs.google.com/document/d/1lNPcouGmjLMe7-bAQ6hxlp5movhy_fizSsHiVVOBsjk/edit?usp=sharing

    in reply to: Hardware and CPU Kit #1125

    Hiroshi Yamaura
    Keymaster

    Hi Michael,
    Please don’t post the same subject to another topic (and send the e-mail, FB message at the same time).
    It will confuse other members and us.
    I think you should make new topic for your subject.

    As for scaling, I recommend you to make original hand without any modification first.
    If you finish it, you will find how to make hand suitable to each user.

    This topic will help your fitting.

    Socket Fit

    in reply to: Hardware and CPU Kit #1122

    Hiroshi Yamaura
    Keymaster

    楽しそうですね!ぜひ試してみてください。
    なお、上記のデータに含まれているのは手首までの部分と
    電池ボックスです。

    View post on imgur.com

    この構成で電気的に動かすことが可能なのですが、
    腕部の部品が必要な場合は別途印刷して下さい。

    続報お待ちしております!

    in reply to: Hardware and CPU Kit #1119

    Hiroshi Yamaura
    Keymaster

    ・パーツ:BOMをご参考に発注
    ・3Dデータ:データを使ってご自分で3Dプリント or 3Dプリントサービスを使用
    ・基板:データを使ってご自分で加工 or 基板製造サービスを使用

    という形でお作り下さい。
    最新データについてはGithubよりダウンロード可能ですが、
    ひとまず現時点での最新データを以下のドキュメントにまとめました。ご参照下さい。
    https://docs.google.com/document/d/1lNPcouGmjLMe7-bAQ6hxlp5movhy_fizSsHiVVOBsjk/edit?usp=sharing

    3Dプリントは家庭用FDMプリンタであれば数千円(厳密には測定していないのですがおおよそフィラメント500g程度かと思います)、
    3Dプリントサービスを使用する場合はDMMのナイロンプリントで4万円程度です。
    上記のドキュメントのSTLデータは部品同士の間に空間があるので、空間を詰めればさらに安くできる可能性はあります。


    Hiroshi Yamaura
    Keymaster

    はじめまして。投稿ありがとうございます。
    左手用の基板についてはこちらのデータをお使い下さい。
    SeeedStudioやSwitchScienseのフォーマットで作成しているので、
    このままアップロードして頂ければ注文ができるはずです。
    https://github.com/exiii/HACKberry/blob/master/HACKberry-hardware/electronics/HandBoard_left_v1/160824HandBoard_left_v1.zip

    切削等で基板を作られる場合にはこちらのファイルをkicadで読み込んで使って下さい。
    https://github.com/exiii/HACKberry/tree/master/HACKberry-hardware/electronics/HandBoard_left_v1

    なお、左手用基板ではArduinoのスケッチも変更する必要があります。
    こちらを使用して下さい。
    https://github.com/exiii/HACKberry/blob/master/HACKberry-software/HACKberry_v1/HACKberryLeft_v1.1/Hackberry_Left_v1.1/Hackberry_Left_v1.1.ino

    ところで、単純に3Dデータを反転するだけではHbPalmBase03は上手く組み立てられないかと思います。
    (DCDCコンバーターの取り付けが合わないはずです)

    以下のデータに左手用に修正したHbPalmBase03が含まれているので必要に応じてご参照下さい。
    https://drive.google.com/file/d/0B_O4N8Ng5KyZR0dKU2E0ckk1dG8/view?usp=sharing
    https://drive.google.com/file/d/0B_O4N8Ng5KyZZHFhcFR2RlE5Wk0/view?usp=sharing

    in reply to: Hardware and CPU Kit #1103

    Hiroshi Yamaura
    Keymaster

    Sorry, the kit is no longer available.
    Please check this post.
    https://www.facebook.com/exiii.jp/posts/1188542201168176

    If you need, please refer the BOM and order each parts by yourself for now.
    https://github.com/exiii/HACKberry/blob/master/HACKberry-hardware/HACKberry_BOM_v1.xlsx

    in reply to: PCB for 2 sensors #1101

    Hiroshi Yamaura
    Keymaster

    Sorry, we didn’t test this pcb and will not sell it for now.

    Have you (or your colleagues) ever use PCB manufacturing service such as Seeed Studio?
    The file you need for order is only 160902HandBoard2Sensor_v1.zip.
    Other files will be used for editing in kicad.

    You can access Seeed Studio from the following link.
    https://www.seeedstudio.com/fusion_pcb.html
    If you upload the data(160902HandBoard2Sensor_v1.zip), you will be able to order this modified pcb.

    in reply to: PCB for 2 sensors #1098

    Hiroshi Yamaura
    Keymaster

    Interesting! Your proposal is much easier than making new PCB for 4 pole jack.
    It would be good for quick test for 2 sensor.

    I just modified the pcb data.

    View post on imgur.com

    View post on imgur.com

    Reconnect one of 3 pole headphone jack pins to A6 instead of Vcc.
    (In this case, we also should modify the sketch of arduino)

    You can check the data from the following link.
    https://drive.google.com/folderview?id=0B_O4N8Ng5KyZYXZwSWhfeXY1Mkk&usp=sharing

    If you want to use pcb service(such as seeed studio), you can use this file set.
    https://drive.google.com/file/d/0B_O4N8Ng5KyZemlNakZVLWFmSm8/view?usp=sharing
    (I can’t guarantee the quolity of this data..)

    in reply to: Socket Fit #1096

    Hiroshi Yamaura
    Keymaster

    Nico made the socket for HACKberry from his 3D scan data.
    He also upload good tutorial movie.
    It is very nice! Thans Nico.

    Please check this movie if you want to make the socket data.

    in reply to: PCB for 2 sensors #1094

    Hiroshi Yamaura
    Keymaster

    I just check specification of openbionics hand.
    http://static1.squarespace.com/static/56376cfde4b078ea32822fff/t/5694fe56a976af291c702472/1452605017485/Almond+Board+V1.2.pdf

    Although I bought an Ada Hand Kit, I didn’t notice they use 4-pole 3.5mm headphone jack.
    If we combine 4-pole jack and a splitter(such as https://www.amazon.com/Seadream-Headsets-Separate-Headphone-Microphone/dp/B01BJNM0BI/),
    we’ll be able to try 2 sensor easily. That’s good information. Thanks!

    in reply to: PCB for 2 sensors #1091

    Hiroshi Yamaura
    Keymaster

    Hi Nico,
    First of all, thank you so much for your great tutorial! I’m very impressed.
    Actually, I already noticed your tutorial and made the link for your page in our wiki .
    (At the bottom of this page. http://exiii-hackberry.com/dw/doku.php?id=how_to_assemble).
    Our team appreciate your work.

    As for 2nd sensor, I agree that modification will surely improve the usability of the hand but nobody has tried it yet.
    Of course you can modify the PCB.
    You can find the pcb data from the following link.
    https://github.com/exiii/HACKberry/tree/master/HACKberry-hardware/electronics/HandBoard_v1
    We use kicad for editing the data.

    I just check the dimensions of the PCB.

    View post on imgur.com

    View post on imgur.com

    It is not impossible but placing two audio jacks between Arduino Micro’s legs seems a little difficult because of its space.
    Maybe we can’t get enough space for audio jack’s solder pads.

    I think connecting lead wires directly to Analog Input of Arduino Micro is feasible solution.
    We can also use smaller micro controller such as Arduino Pro Mini.

    in reply to: Scaling Issue #1084

    Hiroshi Yamaura
    Keymaster

    Hi Yogesh!

    >Am I thinking right, or is there anything I am missing?
    If you scale the data, conventional electrical components used in HACKberry will not fit.
    So you should select new electrical components(such as motor and pcb) and re-arrange them.

    >Can even Fusion files be made available?
    We also provided Parasolid(.x_t) and STEP(.stp) data. You can import them to Fusion 360.
    https://github.com/exiii/HACKberry/tree/master/HACKberry-hardware/3D

    >Another problem is that they all seem to be Inventor 2016 or latest files. Do you have older versions 2013/14 Inventor files as well?
    Sorry, we can only provide Inventor 2016 version

    in reply to: Reports from Pikes Peak Makerspace #1079

    Hiroshi Yamaura
    Keymaster

    Hi Tima,
    Great progress!!
    The hand looks good on Delaney! These photos are so nice.
    I’m happy to see Delaney’s smiling face again.
    Thank you for the update.
    Can she use the hand in daily life?

    As for 3D scan socket, we will post to this topic.

    Socket Fit


    Recently, traditional prosthetists are trying to make 3D scan socket.

    in reply to: Socket Fit #1074

    Hiroshi Yamaura
    Keymaster

    小林さん

    投稿ありがとうございます。
    公式にはimgur.comを使う方法をオススメしてますが、
    こちらのページの[img]を使っても画像の貼付けが可能です。

    View post on imgur.com

    ウィンドウがポップアップするので、画像のURLを入れて下さい。

    View post on imgur.com

    画像の説明を入力するウィンドウも立ち上がりますが、空欄で大丈夫です。

    View post on imgur.com

    入力が完了すると、文中に以下のように挿入されます。

    View post on imgur.com

    見えかたとしては以下のようになります。

    参考までに他の画像も貼らせていただきますね。


    ※あとから気付いたのですがdropboxから画像への直リンクを手に入れるのは少しややこしいみたいですね。
    以下の様にURLを書き換える必要があります。

    【変更前】https://www.dropbox.com/s/mjvtmlg5wnwx45t/HACKberry%201.jpg?dl=0
    【変更後】https://dl.dropboxusercontent.com/s/mjvtmlg5wnwx45t/HACKberry%201.jpg

    【変更点】
    ・?dl=0 を削除
    ・www.dropbox.com を dl.dropboxusercontent.com へ変更

    【参考記事】http://ijmp320.hatenablog.jp/entry/2015/01/18/171807

    ちょっとめんどくさいのでやっぱりimgur.comを使うのが簡単そうではありますね~

    in reply to: Printing material for FDM #1073

    Hiroshi Yamaura
    Keymaster

    Why don’t you try this direction?
    You don’t need support material inside the thumb.

    Orientation for 3D printing

    in reply to: yubiwogomuni #1067

    Hiroshi Yamaura
    Keymaster

    inaiさん

    たくさんの情報ありがとうございます!
    素晴らしいですね。大変参考になります。

    もしも可能であれば、指先のデータやソケットのデータ等も
    GoogleドライブやDropbox等で共有して頂けると嬉しいです。
    お時間ある時で構いませんので、ご検討よろしくお願いします。

    in reply to: Consulta #1057

    Hiroshi Yamaura
    Keymaster

    1.ここは質問用の場所ではありません。Q&Aに投稿してください。
    This forum is not for Q&A. Please post your question to the following forum.

    Q&A

    2.私達は現在TPR 105ではなくQRE1113を使っています。
    もし購入可能であればSparkfunのQRE1113を使うのが良いと思います。
    https://www.sparkfun.com/products/9453
    ただ、QTA-1Aもおそらく問題なく使えると思います。
    We don’t use TPR 105 but QRE 1113 now.
    If you can, I recommend to use Sparkfun’s QRE1113 board.
    https://www.sparkfun.com/products/9453
    However, I think QTA-1A will also work.

    3.必要なSTLデータやその他の情報はGithubから入手可能です。
    https://github.com/exiii/HACKberry
    You can download all related data including the latest STL files from Github.
    https://github.com/exiii/HACKberry

    4.Arduino NANO互換のCH340ボードが使えるかどうかは分かりませんが、
    1個のAnalog Inputと
    3個のPWMがあればHACKberryは動きます。
    I don’t know whether CH340 Arduino Nano compatible board will work or not.
    However, if it has 1 analog input and 3 PWM output, it will be able to control HACKberry.

    5.MG 996が使えるかどうかは分かりません。
    HD3001HBとサイズを比べてみてください。
    I don’t know whether you can use MG996 or not.
    We recommend HD3001HB.
    https://www.pololu.com/product/1058
    Please compare the sizes.

    in reply to: Independent finger movement #1050

    Hiroshi Yamaura
    Keymaster

    Hi Justin,
    Why don’t you upload your 3D data without PCB?
    HACKberry project taught me that every collaboration will start from disclosing the data;)

    in reply to: Combining Open Bionics with HACKberry #1048

    Hiroshi Yamaura
    Keymaster

    Sorry for very late reply.
    I overlooked the post.
    I don’t recommend you to use servo motor for tendon driven mechanism.
    You have to make pulley for each servo. That requires more space than gear or linkage mechanism.
    http://www.thingiverse.com/thing:1074604
    Not only space, but also pulley mechanism can cause malfunctions such as slack of the wire.
    exiii also tried to use pulley in previous model but the result was not so good.
    Open Bionics mechanism is very sophisticated because they uses linear actuator. They don’t need pulleys.

    As for mechanism, I got good material from Brian Little.
    Please check this paper for your project.
    http://www.rehab.research.va.gov/jour/2013/505/page599.html
    Thanks,

    in reply to: Programming question and battery upgrade #1047

    Hiroshi Yamaura
    Keymaster

    Hi Justin,
    Sorrry for our late reply.
    Please check Mike Li’s video.
    https://www.facebook.com/mike.li.121/videos/1028813003824791/

    He uses the algorithm like you mentioned.
    Therefore, implementing that function is not impossible.

    in reply to: Report from (UDEM University- Mexico) #1046

    Hiroshi Yamaura
    Keymaster

    Congrats! The holes of the palm and the size of wrist are no problems.
    I’m sure you can improve it in the next step.

    Is it possible for you to upload the video?
    I want to see how it works.

    Also, could you share your problems?
    We may be of help to you.

    in reply to: 動作のフリーズについて #1042

    Hiroshi Yamaura
    Keymaster

    そこが原因だったんですね、解決して何よりです。
    同じ症状の他の方の参考になると思います。
    ご情報ありがとうございます!

    in reply to: 動作のフリーズについて #1038

    Hiroshi Yamaura
    Keymaster

    もう実際に使って頂けてるんですね!ありがとうございます!

    フリーズについてですが、
    考えられる可能性としてはArduino Microのリセットスイッチ(下図参照)
    が押されてしまっているのではないかと思います。
    組み付けで基板やDCDCコンバーターが浮いてしまうと、
    このスイッチが押されてしまう事があります。
    そういった事が起きていないかご確認ください。

    View post on imgur.com


    この場合、緩衝材というよりはボタンが押されないように周囲に詰め物をするような
    対策が有効かもしれません。

    また、フリーズがどのような状態か詳しく教えて頂けると、
    他のアドバイスができるかもしれません。
    よろしくお願い致します。

    in reply to: Reports from Pikes Peak Makerspace #1024

    Hiroshi Yamaura
    Keymaster

    Hi Tima, black and red HACKberry looks nice!
    Thank you for the report.

    BTW, old sensor’s output signal is opposite to that of latest sensor.
    Please tell Chase Your Dreams Foundation to use the following Arduino sketch.
    https://drive.google.com/file/d/0B_O4N8Ng5KyZYm9Sd3VLZm9uQWs/view?usp=sharing

    Edited points are as follows(242 lines).
    <before>
    // sval = sval + analogRead(analogInPin0); for other SensorVoard
    sval = sval + abs(1023-analogRead(analogInPin0)); //for SensorBoard_v1_1

    <after>
    sval = sval + analogRead(analogInPin0); //for other SensorVoard
    // sval = sval + abs(1023-analogRead(analogInPin0)); //for SensorBoard_v1_1

    in reply to: Printer settings #1020

    Hiroshi Yamaura
    Keymaster

    Hi Justin,

    This is my general printer setting for UP! plus2.

    View post on imgur.com

    However the software is not common for other 3D printers.
    Tima’s advices are more concrete and practical.
    Please check her advice.

    in reply to: Reports from Pikes Peak Makerspace #1019

    Hiroshi Yamaura
    Keymaster

    No problem. Thank you for your concern.

    in reply to: ARM socket for boil water #1007

    Hiroshi Yamaura
    Keymaster

    Hi, MoldiTux,
    I just tried to make it with Fusion 360 sculpt mode.

    View post on imgur.com

    View post on imgur.com

    You don’t need to use other storage service.
    You can share the data from Fusion 360 directly.
    Please check the data from the following link.
    http://a360.co/1TqrPQC

    This video shows how I made this data.
    http://autode.sk/1YRof0c

    However, I’m also not very good at using T spline.
    It would be appreciated if anybody could provide better data.

    in reply to: Socket Fit #1004

    Hiroshi Yamaura
    Keymaster

    Hi Tima,
    Yes, the video is very interesting for me too.
    He will make next version of socket by 27th May.
    I will share his update 😉

    in reply to: Orientation for 3D printing #996

    Hiroshi Yamaura
    Keymaster

    Hi Nico,
    Unfortunately, we haven’t gotten feedback from Rep2 user.
    If you can’t print the parts nohow, please consider using SLS nylon printer for difficult parts. Sorry.

    As for socket, please check the topics below.
    http://exiii-hackberry.com/forums/topic/socket-fit/
    http://exiii-hackberry.com/forums/topic/assembling/#post-228

    If you can, I recommend you to make 3D scan socket.
    That will be better for actual use.

    In that case, you will need separated battery box.
    Please use this data.
    https://drive.google.com/open?id=0B_O4N8Ng5KyZakw1TFBzZDZ4V2c

    View post on imgur.com

    in reply to: Division of the Socket02 #995

    Hiroshi Yamaura
    Keymaster

    One of our collaborator Yoshiaki Kobayashi created original socket using this update.
    Please check the post below.
    http://exiii-hackberry.com/forums/topic/socket-fit/#post-994

    in reply to: Socket Fit #994

    Hiroshi Yamaura
    Keymaster

    私たちの協力者の小林さんが3DスキャナとFusion 360でオリジナルのソケットを作り、作業の様子を共有して下さいました。
    https://knowledge.autodesk.com/ja/community/screencast/9c9930bb-230f-4e42-a4a6-556bbefeb9d9
    小林さんは現役の義肢装具士です。
    義肢装具士としての知見とデジタルファブリケーションの技術を組み合わせた形です。
    この方法は3Dプリンタでソケットを作ろうとする人にとって大変参考になると思うので、ぜひ確認してみてください。

    小林さんからのアドバイスとしては、
    ・肘関節の中心を原点に合わせる
    ・取り付ける手首の角度に注意する(少し掌屈方向に傾いた方が使いやすい)
    ・ソケットの縁が食い込まないようにフレア形状にする
    とのことでした。

    One of our collaborator Yoshiaki Kobayashi created original socket using 3D scanner data and Fusion 360.
    https://knowledge.autodesk.com/ja/community/screencast/9c9930bb-230f-4e42-a4a6-556bbefeb9d9
    He is prosthetist on active duty.
    He combines his knowledge as prosthetist with digital fabrication technique.
    I believe this process will definitely help others who want to make 3D print socket.

    His advices are as below,
    -Place the scan data to appropriate point. He set a center of elbow joint as origin.
    -Be careful about angle of wrist.
    -Make the edge flared to avoid digging into skin.

    in reply to: Regarding Servo Jitters #984

    Hiroshi Yamaura
    Keymaster

    Hi,
    As for jitters, we do nothing.
    So we also still have the problem of jitters.

    Our latest model “HACKberry” doesn’t use phone.
    We only use Arduino micro for sensing and controlling the servo.

    We previously used the combination of Arduino and Android app in our model “Handiii”.
    Android app get the signal of EMG, recognize the state, and send the specific number to arduino.
    Arduino simply recieve the number via software serial and change posture along with the number.
    There was not such a conflict.

    Sorry that I can’t live up to your expectations.

    in reply to: Report from (UDEM University- Mexico) #979

    Hiroshi Yamaura
    Keymaster

    Hi Victorino,
    It looks that the wrist mechanism and EMG seonsor works very well!

    BTW, do you assign each motion as follows?
    -Flexion: Wrist movement
    -Extention: Thumb movement
    -Cocontraction: Index finger movement

    Why don’t you assign like this?
    -Flexion: flexion
    -Extention: extention
    -Cocontraction: change mode(Wrist/Thumb/Index)

    In this method, you can add more modes and it will be more intuitive.
    I heared that other commercial myoelectric hands use this method.

    Anyway, thank you for great report!

    in reply to: Reduce slipping #973

    Hiroshi Yamaura
    Keymaster

    Hi Pavel,
    I’m sorry for very late reply.
    I printed your data. It seems very nice!
    I will use shoe glue for fill this shape.

    View post on imgur.com

    By the way, your data seems to have a problem of scaling for my environment.
    I just fixed. Please try this data if anybody has the same problem.
    https://drive.google.com/open?id=0B_O4N8Ng5KyZaGZNRVVOZFBIUzg

    in reply to: Servo Motors Question #971

    Hiroshi Yamaura
    Keymaster

    Do you use proper voltage?
    You should apply 5[V] to the servo motor.
    If we apply higher voltage(e.g. 7.2V) to the servo, sometimes that kind of problems happen.

    Or could you change arduino sketch?
    If you have a problem at max position, you can shorten the range of servo movement.

    in reply to: Reports from Pikes Peak Makerspace #969

    Hiroshi Yamaura
    Keymaster

    Sounds great! Please share the photos of the event when you have time. Hope all goes well!


    Hiroshi Yamaura
    Keymaster

    良かったです!完成のご報告楽しみにしてます。


    Hiroshi Yamaura
    Keymaster

    まずは基板の完成おめでとうございます!

    サーボモータ反転の件ですが、おそらくセンサを古い仕様・回路図で作られているのが原因ではないかと思います。
    現在のArduinoのスケッチ(プログラム)は新しいセンサ用のものなので、古いセンサをつなぐとそのようにモーターの動きが反転してしまいます。

    解決策ですが、
    一番良いのは新しいセンサを使うことですが、
    プログラムを変更してもひとまず対応可能です。

    Arduinoに書き込むスケッチを開いて242行目を以下のように変更して、再度Arduinoに書き込んでください。

    <変更前>
    // sval = sval + analogRead(analogInPin0); for other SensorVoard
    sval = sval + abs(1023-analogRead(analogInPin0)); //for SensorBoard_v1_1

    <変更後>
    sval = sval + analogRead(analogInPin0); //for other SensorVoard
    // sval = sval + abs(1023-analogRead(analogInPin0)); //for SensorBoard_v1_1

    該当箇所を見つけるのが難しい場合は、以下のスケッチをダウンロードしてArduinoに書き込んでください。
    https://drive.google.com/file/d/0B_O4N8Ng5KyZYm9Sd3VLZm9uQWs/view?usp=sharing

    in reply to: Orientation for 3D printing #959

    Hiroshi Yamaura
    Keymaster

    Oh, sorry to have confused you.
    I happened to use this application for another purpose.
    I usually make HACKberry using a desktop 3D printer(UP! plus2).

    View post on imgur.com

    in reply to: Arduino Microにプログラムの書き込み方? #954

    Hiroshi Yamaura
    Keymaster

    承知致しました。是非試されたら結果をお教え下さい。宜しくお願いします!

    in reply to: Arduino Microにプログラムの書き込み方? #952

    Hiroshi Yamaura
    Keymaster

    情報ありがとうございます。
    おそらくですが、ドライバーソフトウェアを更新することで解決するのでは無いかと思います。
    「デバイスマネージャー」を開いて
    「Arduino Micrco」を右クリックし、「ドライバーソフトウェアの更新」
    を選択して下さい。
    コンピューターを参照してドライバーソフトウェアを検索します
    を選択して下さい。

    こちらのページが参考になるかと思います。「Arduino Leonardo」となっている箇所は「Arduino Micro」に置き換えてください。
    http://www.mugbot.com/windows%E3%81%AEarduino%E3%81%AE%E9%96%8B%E7%99%BA%E7%92%B0%E5%A2%83%E3%81%AE%E8%A8%AD%E5%AE%9A/

    in reply to: Arduino Microにプログラムの書き込み方? #950

    Hiroshi Yamaura
    Keymaster

    スタートして、緑のゲージが数秒で、いっぱいになりましたが、それでOKなんでょうか?
    書き込みが終わったら、「書き込みが終わりました」等のメッセージが表示されますか?

    ゲージがいっぱいになっても完了ではありません。
    以下のように、「書き込み完了」のメッセージが表示されます。
    https://goo.gl/0SAq8p

    もう一度、書き込みのボタンをクリックしても大丈夫ですか?

    はい、問題はありません。

    原因と解決策が思いつきませんが、USB差込口を変更して再度試してみてください。
    USB差込口を変更した場合はもう一度ポート番号を確認して選びなおす必要があります。

    in reply to: Arduino Microにプログラムの書き込み方? #948

    Hiroshi Yamaura
    Keymaster

    本来数秒で終わるものなので、何か問題が起きているのではないかと思います。
    以下の項目をご確認下さい。
    -ポートは正しく選択されていますか?
    -PCとArduino Microは直接繋がっていますか?中間にUSBハブ等を介していませんか?

    in reply to: Arduino Microにプログラムの書き込み方? #946

    Hiroshi Yamaura
    Keymaster

    良かったです。
    書き込み完了後の動作確認はこの動画に沿って行って下さい。

    in reply to: Arduino Microにプログラムの書き込み方? #943

    Hiroshi Yamaura
    Keymaster

    ここまで出来れば準備完了です。
    ソースコードをダウンロードしてArduinoに書き込みましょう。

    以下のURLを開いて、「RAW」ボタンを右クリック、
    「リンク先に名前をつけて保存する」を選んで下さい。
    https://github.com/exiii/HACKberry/blob/master/HACKberry-software/HACKberry_v1/HACKBerry_v1/HACKBerry_v1.ino

    Arduino Softwareから
    「ファイル」→「開く」
    で、今ダウンロードしたHACKBerry_v1.inoを選択して下さい。
    以下のような表示が現れますが「OK」で進めて下さい。

    View post on imgur.com

    上部にアイコンが5個並んでいる箇所で、左から二番目
    右矢印のアイコン「マイコンボードに書き込む」
    を選択して下さい。

    View post on imgur.com

    以上でArduinoへのスケッチの書き込みは終了です。

    in reply to: Arduino Microにプログラムの書き込み方? #942

    Hiroshi Yamaura
    Keymaster

    Windowsの「デバイスマネージャー」を開いて、「ポート(COMとLPT)」という項目を開いて下さい。
    以下の図のように
    Arduino Micro(COM*)
    という表示があるので、その番号を覚えて下さい。

    View post on imgur.com

    Arduino Softwareに戻って、
    「ツール」→「ポート」
    と開くと、COM*という番号が表示されます。
    先程覚えた番号を選択して下さい。

    in reply to: Arduino Microにプログラムの書き込み方? #941

    Hiroshi Yamaura
    Keymaster

    Arduino Softwareがインストールできたら、
    Arduinoを立ち上げて下さい。

    View post on imgur.com

    PCとArduino MicroをUSB-USB microケーブルで接続して下さい。

    View post on imgur.com

    上方のメニューから
    「ツール」→「ボード」→Arduino Micro
    を選択して下さい。

    in reply to: Arduino Microにプログラムの書き込み方? #939

    Hiroshi Yamaura
    Keymaster

    森さん
    フォーラムへの投稿ありがとうございます。
    こちらで進めさせて下さい。
    ---
    基板を作成して組み立てているが、うまく動かないという相談を受けました。
    この件について、フォーラムで議論したいと思います。

    View post on imgur.com

    基板を機能させるためにはArduino Microにスケッチというプログラムを書き込む必要があります。
    まずは以下のページから最新のArduino Softwareをダウンロードして下さい。
    https://www.arduino.cc/en/Main/Software#

    View post on imgur.com

    in reply to: Thumb Mechanism #937

    Hiroshi Yamaura
    Keymaster

    Hi Victorino, sorry for late reply.
    Recommended orientation is as follows

    View post on imgur.com

    View post on imgur.com

    Please also confirm that your STL data are latest.
    You can download the data from the following link.
    https://github.com/exiii/HACKberry/tree/master/HACKberry-hardware/3D/STL/HACKberry_STL_v1/ThumbU

    in reply to: Orientation for 3D printing #934

    Hiroshi Yamaura
    Keymaster

    Thumb can be print with the following direction.

    View post on imgur.com

    in reply to: Orientation for 3D printing #933

    Hiroshi Yamaura
    Keymaster

    Hi Nico, I’m glad to meet you!
    As for printing orientation, I found a document I made before.
    This is not an official document but my memorandum.
    I hope it will help your work.
    https://docs.google.com/document/d/1UjZ72GRje5gr_nVFyK-UEcY2BGhXr2K8xsqIQyiA9qw/edit?usp=sharing

    in reply to: Reduce slipping #927

    Hiroshi Yamaura
    Keymaster

    Yes, I tried the data but I couldn’t open the file.
    Please try again when you find time.
    Thank you.

    in reply to: Reduce slipping #923

    Hiroshi Yamaura
    Keymaster

    Hi Pavel,
    Thank you for your proposal.
    You’re right. Using elastic material for fingertip is very effective for stable grasping.
    Could you share your data?
    Please e-mail us[info@exiii.jp] or
    share the public link here using Google drive, Dropbox, Onedrive or something.
    Thanks!

    in reply to: Advise 3D printer #919

    Hiroshi Yamaura
    Keymaster

    Hi Pavel,

    As for HACKberry,
    Table size sould be W140mm*D140mm*H130mm or More.
    We designed the data for UP! Plus2 printer.
    Support material should be easily removed. Some parts requires complex support material.

    in reply to: EXiii Assembly and Hardwahe #915

    Hiroshi Yamaura
    Keymaster

    Hi Tima,
    Thank you always for your help.

    >SerifShadow
    His kit helps many people to make HACKberry.
    This is a good example.
    https://www.facebook.com/molditux/videos/1578866075757359/

    If you need parts in USA, please get in touch with him.

    in reply to: RXEF040 Question #914

    Hiroshi Yamaura
    Keymaster

    RXEF040 and RXEF050 are not necessary but they can prevent the servo from breaking due to overcurrent.
    Even if they’re not added, HACKberry can work properly.
    However, the servo sometime breaks if overcurrent is continuously applied (I don’t have specific difinition of “continuous”).

    was looking here and they don’t have the same exact one but the one they sell is for 30V and .5 A, would this one work?

    Maybe 30V 0.5A can replace RXEF050.
    Could you give me the data sheet?

    in reply to: EXiii Assembly and Hardwahe #905

    Hiroshi Yamaura
    Keymaster

    Oh, the question is already answered. Thank you Victorino!

    in reply to: EXiii Assembly and Hardwahe #904

    Hiroshi Yamaura
    Keymaster

    Hi,
    This is assembly instruction.
    http://exiii-hackberry.com/dw/doku.php?id=how_to_assemble
    Please check this wiki.

    in reply to: PCB Collision with capacitors #896

    Hiroshi Yamaura
    Keymaster

    Tima,
    Oh, did you support him? Thanks for the cooperation!

    Jose,
    If the pcb can’t be assembled, you can replace the DC-DC converter to smaller one.
    I just remembered Tima already mentioned smaller DC-DC converter in this topic.
    http://exiii-hackberry.com/forums/topic/development-of-handboard_v2/#post-460

    If you still have the problem, you can try it.

    in reply to: PCB Collision with capacitors #894

    Hiroshi Yamaura
    Keymaster

    Hi MoldiTux,
    Thank you for posting.
    I just saw your video. Congratulations!
    https://www.facebook.com/molditux/videos/1578866075757359/

    BTW, what is the name of your DC-DC converter?
    That information may help other people.

    in reply to: Linking Mechanism between 3rd,4th and 5th finger #886

    Hiroshi Yamaura
    Keymaster

    Hi Ashok,
    Which is the fragile part?
    They’re not so fragile in my case.
    It’ll be helpful if you could post the pictures.

    in reply to: Thumb locker – printable? #884

    Hiroshi Yamaura
    Keymaster

    Yes, 3-4-5 fingers (middle, ring, little fingers) are the same.
    The spring used for index finger is torsion spring.

    -Material diameter:0.3
    -Inside diameter:4
    -Free Angle:270
    -Active coil turns:5
    -Arm length:12

    You can find the specification of springs in BOM.
    Please right click the “RAW” button and download excel file from the following link.
    https://github.com/exiii/HACKberry/blob/master/HACKberry-hardware/HACKberry_BOM_v1.xlsx

    BTW, required spec of this spring is not so strict.
    The purpose of this spring is just keep index finger’s posture.
    (You can find how the spring works in this video https://youtu.be/Ja_jQvGXULsf)
    You can use other springs or rubber band or something as substitution.

    in reply to: Printing material for FDM #882

    Hiroshi Yamaura
    Keymaster

    Thank you for great report!
    I didn’t know PTEG is so flexible.

    If you conduct endurance test, I think placing a load is important.
    The gear with no-load will keep much longer than the gear with load.
    In my case, I set the thumb opposite to index finger and made servo motor stalled.
    (This endurance test was not for gear but motor.)

    View post on imgur.com

    in reply to: Report from (UDEM University- Mexico) #881

    Hiroshi Yamaura
    Keymaster

    Hi Victorino,
    Wow, it’s drastic remodeling. I’m excited.

    If you don’t mind please upload and share your 3D data here.
    Our community member may want to make motorized wrist.
    Moreover, we may be able to cooperate to modify and reduction.

    I hope this assault goes well!

    in reply to: Custom PCB #873

    Hiroshi Yamaura
    Keymaster

    Thanks, it’s easy to understand.
    It is also good for people who doesn’t have a background in electronics.

    in reply to: Printing material for FDM #870

    Hiroshi Yamaura
    Keymaster

    I understand. Thanks!

    in reply to: Printing material for FDM #867

    Hiroshi Yamaura
    Keymaster

    Thank you for your update!
    PTEG looks strong.
    Are there any problems about removing support materials?


    Hiroshi Yamaura
    Keymaster

    Servo torques should be applied to specific joints.
    If you want to use servo and wires, I recommend you to use bowden-cable mechanism (like brake system of bicycle).
    The pictures of finger mechanism used in this post is very helpful.
    http://www.robotshop.com/forum/control-cables-and-sheaths-t9202
    I hope your project goes well.

    in reply to: Custom PCB #855

    Hiroshi Yamaura
    Keymaster

    Hi Mike,
    Thank you for your explanation.
    I misunderstood about IR sensor.
    I thought you use IR sensor for wireless communication but you use it as muscle sensor.

    We tried similar method but that did not succeed.
    Distinguishing intentional input from natural vibration noise was difficult.
    Therefore, your attempt is very interesting.
    We’re looking forward to see your report and source code.

    in reply to: Custom PCB #849

    Hiroshi Yamaura
    Keymaster

    Hi Mike,
    dog feeder is very interesting.
    Maybe it has nothing to do with many other amputees but very important for your friend.
    I think this kind of personal customization is the strength of digital fabrication.
    Thank you so much for making the best of HACKberry.

    BTW, I’d like to ask you a question about your post #842.
    The hand movement of No.1 mode is different from that of No.2 mode.
    It seems that you can change the mode using your muscle.
    How do you change it?

    in reply to: Assembling the palm #848

    Hiroshi Yamaura
    Keymaster

    Hi Ew, You did it!
    The movement looks very smooth.
    I can’t believe this is your 1st test.
    Congratulations!

    in reply to: Custom PCB #840

    Hiroshi Yamaura
    Keymaster

    Hi Mike,
    Thank you for sharing interesting idea.
    I’m very glad to see many remodels are emerging.
    Oh, you’re making wireless control robot hand.
    It can be used for not only prosthesis but also many other purposes.
    This is going to be fun!

    in reply to: Assembling the palm #836

    Hiroshi Yamaura
    Keymaster

    Hi Ew,
    Thank you for trying 3D printed shield.
    Your design looks very nice.
    Maybe it is smaller than original one.

    Are you using Arduino Pro mini compatible board?
    https://www.sparkfun.com/products/11113

    solder need to be very fast before the board melt.

    You’re right. That is the biggest problem of this method.
    Maybe you can avoid melting by covering its surface with Kapton tape (This is just idea. I haven’t tested).

    in reply to: Servo Motors Question #835

    Hiroshi Yamaura
    Keymaster

    Hi Victorino,
    Thank you for sharing your situation.
    To solve your problem, we need as much information as possible.
    Is it possible for you to upload a video of your problem?
    A video contains so many information.

    This topic is good example.
    http://exiii-hackberry.com/forums/topic/help-me-with-the-electrician/
    Александр and I cooperated and finally solved the problem using video.

    Ew’s advice is very appropriate. Check his post first.
    But if you still can’t solve the problem, please try to use video.
    Thanks!

    in reply to: Отчет пользователя #828

    Hiroshi Yamaura
    Keymaster

    Hi Ew,

    I even use normal remote control IR LED and detector from DVD player , and put it on a board for testing, and it works perfectly.

    Oh, that’s so funny!
    If we could gather all HACKberry parts from junk parts, it’ll be great.

    The QRE`1113GR is easy to buy in many countries, if you are in Russia , try RS component, here:

    Thank you for helpful information.

    in reply to: Отчет пользователя #825

    Hiroshi Yamaura
    Keymaster

    Optical trailer for the 3D printer, has something in common with your sensor?

    This part maybe has nothing to do with our sensor.
    We use distance sensor.

    in reply to: Отчет пользователя #822

    Hiroshi Yamaura
    Keymaster

    Since I suffered amputation of the forearm muscles become weaker. Will the sensor to operate reliably in my case?

    HACKberry has the function of calibration. HACKberry probably will be able to adjust to your muscle contraction level even if your muscle is weak.
    Many amputees have tried HACKberry. They basically could control the hand.

    The problem will arise with wearing clothes with long sleeves.

    You’re right. HACKberry’s current design in not good for wearing long sleeve clothes.
    Since HACKberry’s hand is mechanically separated from wrist, you make new socket and combine the hand.
    We can discuss about new socket here.
    http://exiii-hackberry.com/forums/topic/socket-fit/

    in reply to: Отчет пользователя #815

    Hiroshi Yamaura
    Keymaster

    Hi Роман,

    the details of this folder are old.

    I’m sorry. Since the 3D data are frequently updated, the data of “forLeftHand” are not the latest.

    Tell me what specific files are relevant for today?

    The files in this folder are the latest(except for “forLeftHand”).
    Mirroring by yourself is the easiest solution.
    \GitHub\HACKberry\HACKberry-hardware\3D\STL\HACKberry_STL_v1

    You can also find required files from this instruction.
    http://exiii-hackberry.com/dw/doku.php?id=how_to_assemble

    To understand the HACKberry, I recommend you to use 3D-CAD.
    More information can be obtained from assembled 3D data.
    Please download the stp or x_t data here.
    https://github.com/exiii/HACKberry/tree/master/HACKberry-hardware/3D
    If you don’t have an access to 3D-CAD, no problem.
    You can use Fusion 360, Onshape, or FreeCAD. They’re all free.

    How to upload pictures here ?

    I recommend you to use imgur.
    Please also check this topic.
    This is more easy.
    http://exiii-hackberry.com/forums/topic/how-do-you-post-a-picture-and-a-video/

    You can also use “img” tag and direct link.
    Direct link contains file extension.
    These are example.
    OK: https://pp.vk.me/c633326/v633326487/18a84/pV-s2ewFav8.jpg
    NG: https://vk.com/photo-97677668_403494220

    in reply to: Updated sensor system #807

    Hiroshi Yamaura
    Keymaster

    You can use search box here.
    http://exiii-hackberry.com/forums/

    Or you can use google search operator “site:”.
    By using this method, you can find the page related to “sensor” in this domain.

    View post on imgur.com

    Anyway, this topic is the most specific about the sensor.
    http://exiii-hackberry.com/forums/topic/sensor-board/

    in reply to: First print, let's get this party started =) #799

    Hiroshi Yamaura
    Keymaster

    Thank you for your good insight.
    Yes, sharp corner may cause the problem of stress concentration.
    I also think A 45 degree transition is probably effective.

    As for screw boss breaking, I have another solution.
    Please check diameter of prepared hole.
    The dimension error of the hole often reads screw boss breaking.
    I use 1.6[mm] drill for prepared hole before tightening 2.0 [mm] screw.

    in reply to: Assembling the palm #792

    Hiroshi Yamaura
    Keymaster

    Hi Ew,
    Sorry for late reply.
    Thank you for sharing your progress.
    It’s quality looks very nice.

    Tima also said 03 was better than 02 for his recipient.
    We’re looking forward to see your update!

    in reply to: TPR-105 IR Sensor in the US #788

    Hiroshi Yamaura
    Keymaster

    Hi Ashok,

    1) I understand that initially hackberry started with two sensors i.e. GL55 photo resistor and infrared sensor pj835.
    Then it has switched to a single sensor TPR 105 or its equivalent.
    Can you explain in few words why this change was made?

    Why do you think so? HACKberry started with TPR105 and has switched to QRE1113.
    They has almost the same features.
    Please check this topic.
    http://exiii-hackberry.com/forums/topic/sensor-board/

    2) When the one second calibration is performed, what values are stored in the memory?

    During calibration, maximum and minimum values of the distance from sensor to skin surface are memorized.
    This video shows how we calibrate the sensor values.

    3) Would adding a pre-amplifer to the output of TPR 105 before Arduino processes it, help?

    The sensor consists of QRE1113/TPR 105 and two registers. You can amplify the output by adjusting the resister(R2 in the picture below).
    Therefore, I think adding a pre-amplifer is unnecessary.

    View post on imgur.com

    in reply to: Missing hole on palm? #781

    Hiroshi Yamaura
    Keymaster

    I recommend you to use CAD just for assembling manual.
    You don’t need to edit 3D data. You can use it as 3D data viewer.
    It can be good assembling instruction.

    in reply to: Missing hole on palm? #780

    Hiroshi Yamaura
    Keymaster

    Hi Ew,

    The mechanism of index finger is bit different from others.
    Your palm is correct. You don’t need to drill a hole.

    View post on imgur.com

    in reply to: Help me with the electrician #777

    Hiroshi Yamaura
    Keymaster

    Congrats! its movement looks very smooth. I really happy to see that you finished to make HACKberry.
    Thank you so much!

    in reply to: HBlockPlateHolder02 questions #770

    Hiroshi Yamaura
    Keymaster
    in reply to: Reports from Pikes Peak Makerspace #767

    Hiroshi Yamaura
    Keymaster

    Hi Tima, Ew, Александр,

    Thank you for your discussions and feedback.
    I updated the data so that the middle finger’s shaft holder will not break.

    It may makes assembling a bit difficult but must be stronger than previous one.

    Please try the latest data.

    View post on imgur.com

    in reply to: Sharing Open Design of Hackberry #764

    Hiroshi Yamaura
    Keymaster

    Hi Li-san, 廖振睎,
    Thank you for sharing your great HACK!

    Li-san’s laser-cutting is very interesting.
    Using 3D printer is very easy but often time-consuming.
    Laser cutting will solve the problem.
    It’s sophisticated appearance is also fabulous.

    廖振睎’s LED and speaker may add new function for HACKberry.
    Since it uses the space of the arm, it can’t be attached to actual user for now.
    However, it’ll be solved in anytime.
    The important thing is that the new function has been provided to HACKberry from opensource community.

    If you don’t mind, please upload the files for laser cutter and 3D printer to your fabble project pages.

    in reply to: S03N servo substitute #738

    Hiroshi Yamaura
    Keymaster

    Sorry, 3001HB is not common in Japan.
    I can buy it from Pololu but it takes time for shipping.

    I just added 3001HB to BOM as a substitution for S03N.

    in reply to: First print, let's get this party started =) #728

    Hiroshi Yamaura
    Keymaster

    If you have a trouble with assembling,
    please check Wiki

    and feel free to ask us here.
    We’re looking forward to your update.

    in reply to: Reports from Pikes Peak Makerspace #724

    Hiroshi Yamaura
    Keymaster

    Hi Tima,
    Thank you for your update!
    It looks very nice.
    Adding loop is also good idea.

    Ew,
    Sorry, that information was not posted yet.
    I just updated the data and upload it to github.
    Please check this post.
    http://exiii-hackberry.com/forums/topic/updated-sensor-system/

    in reply to: 2 Questions from Orlando #718

    Hiroshi Yamaura
    Keymaster

    BTW, I found better way to use images here.
    I updated my previous post. Please check it.
    http://exiii-hackberry.com/forums/topic/how-do-you-post-a-picture-and-a-video/

    in reply to: 2 Questions from Orlando #713

    Hiroshi Yamaura
    Keymaster

    I just tried and got the same result.
    Did you select this tab?

    View post on imgur.com


    The tab next to it looks better.

    View post on imgur.com


    Then, I tried the following import setting.

    View post on imgur.com


    I don’t know why but it looks more better.

    View post on imgur.com

    I already checked that Fusion 360(Free for hobbyist) can import all parts successfully.
    Therefore, you can make stp files of each parts.
    If you want to use Onshape, you can get missing parts from Fusion 360.

    I know this is little troublesome.
    Let’s find better import method for Onshape.

    in reply to: S03N servo substitute #709

    Hiroshi Yamaura
    Keymaster

    Tima,
    Thank you for the information!
    I will add 3001B to BOM as a substitution of S03N.

    Ew,
    The torque of ES08MD is 1.6 kg・cm@4.8V or 2.0 kg・cm@6V.
    The torque of S03N is 3.4 kg・cm@4.8V.
    Maybe ES08MD can work but the torque is not so strong.
    I can’t say it is enough or not.

    ES08MD’s electrical circuit is also not so strong. If you repeatedly stall the motor, it may burn.
    (Therefore, I recommend you to insert polyswitch to each motor if you want to make the hand more durable).

    in reply to: HBsocketU02 and HBsocketU03 #707

    Hiroshi Yamaura
    Keymaster

    Hi Ew,
    OK, I will update HBsocketU03. Please print and assemble other parts first.

    in reply to: HBsocketU02 and HBsocketU03 #701

    Hiroshi Yamaura
    Keymaster

    At first, we used VN-3-1 as battery pin but we found that this pin has rare cases of malfunction.
    Therefore, we decided to replace it to 101050-003.

    HbsocketU02’s 3D data was already updated so that 101050-003 can be used.
    However, HbsocketU03’s 3D data was not done yet.

    Is it possible for you to update HbsocketU03’s 3D data by referring to HbsocketU02’s 3D data?

    View post on imgur.com

    View post on imgur.com

    in reply to: Thumb design is changed! #696

    Hiroshi Yamaura
    Keymaster

    Hi Kyle,
    haha, no problem.
    Tetsuya is also CATIA V5 enthusiast.

    in reply to: Thumb design is changed! #694

    Hiroshi Yamaura
    Keymaster

    Tima,

    Sorry, I can’t understand why you care about looseness so much.
    HbThumbProximalPhalanx02 is tightly fixed to HbThumbProximalPhalanxBase02 by the screw.
    There is no looseness regardless of the clearance.

    in reply to: HBsocketU02 and HBsocketU03 #692

    Hiroshi Yamaura
    Keymaster

    HbSocketU02 looks nice but has not sufficient space for stump.

    View post on imgur.com


    On the other hand, HbSocketU03 looks unbalance but has better fitting.

    View post on imgur.com

    If you want to use it for actual user, I recommend you to use HbSocketU03.
    (However, HbSocketU3’s battery board and battery contact pin are not the latest one which is listed on BOM.
    Please ignore BOM and check 3D data to purchase the parts. Sorry for inconvenience).

    in reply to: Battery Protection / safety question #688

    Hiroshi Yamaura
    Keymaster

    Hi Ew,
    I couldn’t find official document that BLF19 includes safety circuit.
    However,
    -3rd party says their product which is compatible with BLF19 includes safety circuits (Overcharge/Overdischarge/Overcurrent).
    -Panasonic says “A Lithium ion battery must include a safety unit(SU). Also for safety reasons cells are not sold individually.” Please check the following document. This is the Panasonic’s way of thinking about lithium ion battery.
    https://industrial.panasonic.com/cdbs/www-data/pdf/ACA4000/ACA4000PE3.pdf (English)
    https://industrial.panasonic.com/cdbs/www-data/pdf/ACA4000/ACA4000PJ4.pdf (Japanese)

    I considered using 18650 but BLF19 and its charger are sold all over the world. We can also easily find substitutes of BLF19 with affordable price.
    Further, the battery for consumer electronics is basically safer than individual cells. They got certifications, they’re covered with plastic case and they’re easy to use for all people.
    That’s why we decided to use BLF19.

    in reply to: Thumb design is changed! #687

    Hiroshi Yamaura
    Keymaster

    Hi Tima,

    I don’t want to use glue since HACKberry doesn’t need it for other assemblies.
    If we use it for thumb, people have to provide glue only for this part.

    I also don’t want to use press fit because it is very affected by the accuracy of the 3d printer.
    Therefore, we decided to connect them using a screw.

    in reply to: Development of HandBoard_v2 #683

    Hiroshi Yamaura
    Keymaster

    Hi Ew,
    Sorry, the specification of V2 board is not fixed yet.
    Maybe I have to design v2’s mechanical part first.

    If you have an idea for improvement,
    could you wait for a while or could you design and make it for HACKberry v1?
    We can test it and can decide which feature should be introduced to next model.

    in reply to: Development of HandBoard_v2 #682

    Hiroshi Yamaura
    Keymaster

    Tima,
    Thank you for good feedback!
    I’ll refrain from using slots for pcb design.

    Since I already ordered the PCB with current design,
    I have to continue to use slot type jack(MJ179PH) for now.
    However, I will buy PJ-102A and check whether I can introduce it to v1 board.

    in reply to: Printing material for FDM #681

    Hiroshi Yamaura
    Keymaster

    Oh, I never tried PETG filament.
    The weakest point of the hand is index finger’s gears
    (Currently I often use Shapeway’s SUS print service for the gears).
    Please try to print them using PETG. It’ll be very helpful for all of us.
    We’re looking forward to hear your result!

    in reply to: Assembling #680

    Hiroshi Yamaura
    Keymaster

    Hi Guan, thank you for your information.
    I thought that I must use limit switch or position meter to use DC motor.
    However, your idea realized me that I can substitute them by sensing the current of the motor.
    It’s interesting. I’ll try it near future. Thanks!

    in reply to: Thumb design is changed! #660

    Hiroshi Yamaura
    Keymaster

    Hi Alexander,
    I guess you want to connect the parts which is surrounded by red frame.

    View post on imgur.com

    However, this gap is necessary for disassembling the thumb parts without removing the servo motor from the PCB.
    Is it so fragile? I think it is enough for standard use.

    in reply to: Socket Fit #637

    Hiroshi Yamaura
    Keymaster

    Hi all,
    Tima and I were discussed about Delaney.
    We’ve come to the conclusion that the topic about her arm is too intimate to share here since she is still young.
    Therefore, let’s stop to talk about this project in this forum.
    Of course the project will continue and exiii will give our coopetation.
    The result will be shared from Pikes Peek Makerspace in the future.
    Let’s wait until the time comes.

    BTW, I made the movie that explain how to make a socket for HACKberry from 3D scan data.
    The required softwares are Meshmixer and Fusion 360.
    It is a tentative method. If someone finds a better way, please let us know.

    in reply to: Assembling #636

    Hiroshi Yamaura
    Keymaster

    Sorry, I couldn’t understand what you mean..

    for the screws the holes have to be printed a different way

    We print the holes as their 3D data. We don’t use a different way.
    If you’re worried about tapping, we’re using self-tapping screw. Tapping is unnecessary.

    how do you insert them to the assembly without them falling and sticking without a problem

    Do you mean “why does the screws stick to a screwdriver?” ?
    I use magnetic screwdriver.

    in reply to: Socket Fit #625

    Hiroshi Yamaura
    Keymaster

    Haha, you’re right.
    Please try it and give me a feedback.
    Of course We’d be glad to continue to give you our cooperation.

    As for #615, the cutout doesn’t affect the fitting so much.
    In his case, lateral side and upper/lower sides were important to receive the load but medial side was not.
    I’m not sure but we may be able to set the sensor here.
    If someone think we should set the sensor on socket, it is not good idea.
    The load from the hand affect the sensor output and user will lose the control of the hand.
    Therefore, I think we should separate the sensor from the socket.

    BTW, Tima and I discussed about how to apply the HACKberry for user who has short stump(has couple inches below the elbow).
    I introduced this picture.
    http://3dprintingindustry.com/wp-content/uploads/2015/03/grace-mandeville-3D-printed-bionic-arm-from-open-bionics.jpg
    I mean, if someone has short stump, he can’t get enough suspensibility from forearm.
    Therefore, we should consider using upper arm cover.
    Another example of upper arm cover is as follows.

    in reply to: Sensor board #623

    Hiroshi Yamaura
    Keymaster

    Hi Stephan,
    Our sensor board is basically the same with QRE1113 break out board[https://www.sparkfun.com/products/9453].
    With regard to its signal, please check this movie.

    This sensor is set on the skin using velcro band.

    The sensor unit is like this.

    in reply to: Socket Fit #619

    Hiroshi Yamaura
    Keymaster

    Hi Tima,
    I created Delaney’s socket for the reference (I could make only 1 size example. Sorry).
    The purpose of this socket is just to show how to connect 3D scan data with HACKberry’s wrist parts.
    You don’t have to use it.

    I used Meshmixer for editing STL data and Fusion 360 for making surfaces.
    If someone want to know its modeling process, check this Fusion 360’s link.
    http://a360.co/1PwenqV

    I’m looking into a socket that has some space to allow her wrist movement.

    Yes. We should make the best of the degrees of freedom.
    Please let me know if you come up with a good idea.

    in reply to: Socket Fit #615

    Hiroshi Yamaura
    Keymaster

    exiii has stilll been examining 3 methods for making socket.
    No.1 Velcro type socket.
    No.2 Using 3D scanner and making 3D printed socket.
    No.3 Combining traditional prosthesis socket and HACKberry.

    Today, I’ll introduce the example of No.2 type socket.
    I used Sense 3D scanner(http://cubify.com/products/sense) and made the socket using the method above.

    The problems were the battery and the sensor.
    In this model, I made a large hole at the medial side of socket so that the sensor can be set on the stump.
    As for battery, the battery box was made separately from the socket.
    This is more natural than current velcro type socket.

    BTW, Polish engineer Bartek reported he made a plaster cast of stump and got the 3D data using 123D catch(http://www.123dapp.com/catch).
    This is more affordable way than ours.

    >Tima
    Do you have 3D data of Delaney’s arm?
    If you could send me the data, I may be able to make the socket data and send it to you.

    in reply to: Reports from Pikes Peak Makerspace #607

    Hiroshi Yamaura
    Keymaster

    Hi Kyle,
    Thank you for the helpful tips!
    It must be used for stronger finger.

    I found it at Amazon.com
    http://www.amazon.com/Fibre-Glass-Evercoat-Premium-Marine-Resin/dp/B0000AYJZ1

    in reply to: Reports from Pikes Peak Makerspace #602

    Hiroshi Yamaura
    Keymaster

    Hi Tima, I didn’t know we can get such a well-finished surface by painting acetone. It looks very nice! I think Delaney will surely love it.

    Acetone’s reinforcement is interesting. We’re lending a HACKberry to an user in Japan. The weakest point is index finger. The finger breaks in his daily life. We’ll try acetone.

    BTW, we’re using Shapeways’s steel print for gears. https://www.shapeways.com/materials/steel If you have a problem with gears, please try it. it is not so expensive. I recommend you to enlarge their gear’s hole from 2.2mm to 2.4mm. Actual holes are often smaller than 3D data and it is very hard to drill.

    Separating a thumb into 2 parts is also good idea. Thank you for sharing update!

    in reply to: Printing material for FDM #597

    Hiroshi Yamaura
    Keymaster

    Victorino, thank you for corresponding!
    As I already answered, I recommend to use ABS.
    Anyone has other idea? Any suggestion will be appreciated.

    in reply to: Assembling #595

    Hiroshi Yamaura
    Keymaster

    Sorry, the BOM has not been updated yet.

    We just added “WIKI”. It is focusing on assembling for now.
    Please check there from the “WIKI” button in the top right of this page.
    (Everybody can edit this wiki without registration.)

    Spring probe is mounted to Battery PCB. it is used as battery contact.
    Coil Spring and steel ball is mainly used for the wrist unit.

    in reply to: Help me with the electrician #591

    Hiroshi Yamaura
    Keymaster

    (English)
    exiii team usually use ABS for HACKberry. We haven’t tried NYLON.
    Why don’t you use ABS for now? If you will have a trouble with ABS, you can replace that ABS part with NYLON part.

    BTW, could you use/create a proper topic?
    The material for FDM have not been discussed in our forum.
    Therefore, you can create a topic such as “Printing material for FDM” and can post your question.
    I’d be appreciated if you could do so next time.
    Thanks!

    (Japanese)
    exiiiのチームは普段ABSを使用しています。ナイロンは使ったことがありません。
    まずはABSを試してはどうでしょうか?ABSの部品に問題があれば、その部品をナイロンで作り直せば良いと思います。

    ところで、内容に合ったトピックを使う又は作って頂けますか?
    FDMでの材料についてはここでは議論されていませんでした。
    そこで、「FDMでの材料」といったトピックを作成して、あなたの質問を投稿して頂くことが出来ます。
    次回からそのようにしていただけると大変嬉しいです。
    ありがとうございます。

    in reply to: Help me with the electrician #587

    Hiroshi Yamaura
    Keymaster

    Wrist parts are as below.

    HBpronationLockPin02
    HBlockPlateHolder02
    HBarmMountBase03
    HBarmMountBaseCover03
    HBabductionLever02
    HBejectorLever02
    HBarmMount02

    You can get all wrist parts from here.
    https://github.com/exiii/HACKberry/tree/master/HACKberry-hardware/3D/STL/HACKberry_STL_v1/WristUnit

    (I just organized the folder yesterday. It will help you to find parts.)

    in reply to: Help me with the electrician #583

    Hiroshi Yamaura
    Keymaster

    Hi,
    Your thumb data is the newest.
    Please use that data.
    If you need previous data, you can download it from github.
    https://github.com/exiii/HACKberry/blob/3d46c9c59f8e0eae1fff61c68d26b40f91c03b84/HACKberry-hardware/3D/STL/HACKberry_STL_v1/Hbthumb03.stl

    (added)
    Previous thumb was only able to pinch a small object.
    Latest thumb can change its posture.
    By using this function, you can also grasp larger object such as water bottle.
    Please check this movie.

    in reply to: Importing 3D files to Rhino #575

    Hiroshi Yamaura
    Keymaster

    Oh, thanks. These information and images are helpful since we don’t have solidworks.
    It seems HBejectorLever02 and HbPowerLever05 are lost. I’ll check it.

    in reply to: Importing 3D files to Rhino #569

    Hiroshi Yamaura
    Keymaster

    Hi Xu,
    Thank you for joining.
    Try to right click the “RAW” button and select “Save the link as…”.
    I also write the article how to download the data.
    http://exiii-hackberry.com/forums/topic/how-to-download-3d-data/#post-568

    in reply to: Help me with the electrician #565

    Hiroshi Yamaura
    Keymaster

    I see. I just added it to our problem list. Thanks.

    in reply to: Help me with the electrician #563

    Hiroshi Yamaura
    Keymaster

    Hi,
    Do you have any problem?
    Is the thumb broken?

    in reply to: Development of HandBoard_v2 #559

    Hiroshi Yamaura
    Keymaster

    Tima,

    I wonder if you used the files produced by ki-cad to make the pcb you posted at http://exiii-hackberry.com/forums/topic/development-of-handboard_v2/#post-489.

    Yes, I used KiCAD to make this green PCB.
    The file is here.

    If so, did you have to make any change to have the slots cut for the power jack and through holes for sensor jacks?

    Yes, I altered output setting of KiCAD.
    Before using PCB Manufacturing servie, I tried LPKF’s Circuit Board Plotter.
    Their software(LPKF Circuit Pro 2.2) didn’t recognize the slots designed by KiCAD.
    Therefore, I modified the setting of KiCAD.
    Maybe that’s why our green PCB’ slots are successfully drilled.

    in reply to: Help me with the electrician #556

    Hiroshi Yamaura
    Keymaster

    OK, I understand your situation.
    Let’s wait for a new arduino.
    Thanks!

    in reply to: Help me with the electrician #550

    Hiroshi Yamaura
    Keymaster

    I had the similar problem.
    I’m not sure but the following link may help you.
    https://www.arduino.cc/en/Guide/ArduinoLeonardoMicro#toc12
    Refer the method in “Uploading Code to the Leonardo and Micro”

    Press and hold the reset button on the Leonardo or Micro, then hit the upload button in the Arduino software. Only release the reset button after you see the message “Uploading…” appear in the software’s status bar. When you do so, the bootloader will start, creating a new virtual (CDC) serial port on the computer. The software will see that port appear and perform the upload using it. Again, this is only necessary if the normal upload process (i.e. just pressing the uploading button) doesn’t work.

    in reply to: Help me with the electrician #548

    Hiroshi Yamaura
    Keymaster

    Please write Russian and English.
    This topic is not only for you and me.
    Other people will also check this topic.
    They will solve their problems the same as us.
    Therefore, I want to keep this topic understandable to other people.

    I guess you want to buy assembled electronics components.
    Sorry, we can’t deal with it for now.
    We’re now preparing for this.

    However, I think you’re only one step away from the completion.

    Please check your sensor value.

    If you can’t, tell me why.
    Was Arduino broke?

    in reply to: Help me with the electrician #537

    Hiroshi Yamaura
    Keymaster

    Sorry, I can’t understand.
    Could you write English with Russian?
    I will use Google translation to translate Russian into Japanese.

    in reply to: Help me with the electrician #535

    Hiroshi Yamaura
    Keymaster

    Anyway, your index finger actually works. Congrats!
    After checking DC-DC converter, please check the value of the sensor.
    1. connect arduino to PC via USB.
    2. Run arduino IDE.
    3. Opens the serial monitor window.
    4. Check the “value” in the serial monitor window.

    in reply to: Help me with the electrician #532

    Hiroshi Yamaura
    Keymaster

    Is your DC-DC converter connected the other way around?
    Please double check.

    in reply to: Assembling #528

    Hiroshi Yamaura
    Keymaster

    I wonder if the users there can actually use that part of the arm to control the hand.

    Our test user Akira can control the hand using that part of the arm.
    However, it depend on the condition of remained muscle. You don’t have to put the sensor on that part. You can put the sensor under the elbow support.

    Have you heard any feedback on this matter from the users there?

    There was no problem after wearing the hand for 2-3 hours but we’ve not tested specifically.
    We also know this method is not perfect. We’re now trying other methods such as 3D scan, combining traditional socket, and so on.

    Can you share the link to where to get the same elbow support?

    We use these supporters. They’re covered with velcro tape.
    http://www.amazon.co.jp/dp/B000AS4J72/
    http://www.amazon.co.jp/dp/B007XA7ITG/
    (Sorry, these’re Japanese link. Maybe followings can work as substitutions).
    http://www.amazon.com/dp/B00WJAGLMU
    http://www.amazon.com/dp/B00L99G9PQ/

    Can you also explain how you use the HbUpperArmCover01.stl?

    It is just a cosmetic cover. This is attached to elbow supporter using velcro tape. We made this cover because an user said that he feel anxiety when his stump is exposed. However, we don’t use this cover.

    in reply to: Help me with the electrician #523

    Hiroshi Yamaura
    Keymaster

    Arduino micro can accept 6 -20v.
    In this model, battery’s output is directly connected to arduino.
    The battery’s rated voltage is 7.2v.

    in reply to: Help me with the electrician #518

    Hiroshi Yamaura
    Keymaster

    Oh, sorry. It actually works.

    How many voltage do you apply to servo motor?
    Output voltage should be 4.8-6.0[V].
    If it is not in the range, please adjust it by rotating this knob.

    in reply to: Help me with the electrician #513

    Hiroshi Yamaura
    Keymaster

    I want to clarify your problem.
    If you connect servo motors to HandBoard, Arduino is reset when you turn on the switch.
    Is it right?

    Could you give me the picture of the other side?

    View post on imgur.com

    Я хочу уточнить, вашу проблему .
    Если вы подключите сервоприводы к HandBoard , Arduino сбрасывается, когда вы включите .
    Правильно ли это ?

    Не могли бы вы дать мне картину с другой стороны?

    in reply to: Help me with the electrician #511

    Hiroshi Yamaura
    Keymaster

    Wow, great progress!

    I saw your video.
    I think DC-DC converter doesn’t work because its LED is not lighted.
    Could you check it?

    in reply to: Help me with the electrician #507

    Hiroshi Yamaura
    Keymaster

    Hi, do you have any trouble?

    in reply to: Import STL Files into 3D Software #505

    Hiroshi Yamaura
    Keymaster

    Hi, sorry for late reply.
    I think flawed topology is due to FreeCAD.
    I also tried FreeCAD and got the same result.

    Why don’t you try Fusion 360?
    It has the function that the user can select STL output resolutions.
    By using Fusion 360, I could get a consistent rotation and perfect topology.

    in reply to: Development of HandBoard_v2 #502

    Hiroshi Yamaura
    Keymaster

    having the current pcb kits available right away will encourage people to continue building HACKberry instead of having to wait for version 2.

    Yeah, I think so too. Thank you for understanding.

    I’m not sure if we can find the power jack with a power lever here. It seems to me that we have to get it from China.

    OK, I won’t use the power jack with a power lever.

    Do you think a panel mount power switch can be placed somewhere on the arm unit instead?

    It’ll be easy to use. I’ll think it over.

    I haven’t been able to find the sensor jack you specify in BOM.

    Oh, sorry. I will include an audio jack to the kit but there is no need to use current jack.
    I’ll order and test these 2 jacks you recommended.

    Don can send you the schematics soon.

    Thanks! We’ll be waiting for the data.

    in reply to: Wrist Movement #499

    Hiroshi Yamaura
    Keymaster

    Sounds interesting. I hope this article will help your project.
    http://www.rehab.research.va.gov/jour/11/486/kyberd486.html

    On the other hand,
    I like Roy’s Wrist mechanism. This method is simple and practical.
    Please take a look this video.

    in reply to: Starting printing #498

    Hiroshi Yamaura
    Keymaster

    Hi Luigi,
    As for HbPalmBase03, please check this post.
    http://exiii-hackberry.com/forums/topic/ive-been-printing-the-exiii-hackberry/
    Thanks!

    in reply to: Animation with Inventor Dynamic Simulation #495

    Hiroshi Yamaura
    Keymaster

    We’re really looking forward to your report. Thanks!

    in reply to: Animation with Inventor Dynamic Simulation #492

    Hiroshi Yamaura
    Keymaster

    Vicrorino,
    I add your question on the topic “Assembling” for other people’s understanding.

    I don’t know if someone can help me but I downloaded the 3D parts and opened them on inventor, my question is .. has someone tried to make a new assembly and tried the movement inside inventor? without using servo motors and all the other stuff just giving them constraints… I want to make a new assembly and run it along with matlab (simulink) to make some tests inside Inventor, also anyone have a diagram or video on how the mechanism to move the fingers work?
    thanks for your time

    As you can see on Walter’s video, Inventor can move this linkage mechanism.
    I’m not familiar with this kind of simulation, but maybe you have to disassemble sub-assembly(such as HbFinger01.asm) and give parts constraints in main assembly.

    I think this kind of tutorial movie will help your work.

    Nobody in our forum have tried simulation using Simlink for now.
    I hope your project will go well.

    in reply to: Animation with Inventor Dynamic Simulation #491

    Hiroshi Yamaura
    Keymaster

    I found Walter’s video on his page.
    It’s really interesting. Thanks Walter!
    [video src="http://holzwarth-cad.net/Joomla/media/download/HackBerry-complete.mp4" /]

    in reply to: Development of HandBoard_v2 #489

    Hiroshi Yamaura
    Keymaster

    Will your intern Yuta be the one who involves with the new pcb work? Have you or Yuta tried Altium to see if you can use it?

    We are focusing on making PCB kits of previous version(HandBoard_v1).
    This picture is prototype.

    Therefore, it’s still not clear how much we can contribute to develop HandBoard_v2 for now.
    When do you want to finish designing HandBoard_v2 and put it on the market?

    On the other hand, I want to understand your design.
    Do you mind if I ask you to share the PDF of schematic diagram and design data of Altium?

    in reply to: Development of HandBoard_v2 #488

    Hiroshi Yamaura
    Keymaster

    By the way, I’m thinking of using this kind of DC Jack.
    https://www.sengoku.co.jp/mod/sgk_cart/detail.php?code=EEHD-0SMG
    It contains Power Lever. We can reduce number of switch on BackCover and it will be more easy to understand for user.

    There are 2 problems:
    -Delivery
    I couldn’t find this part at Mouser and Digi-Key. Can you get this kind of DC Jack in US?

    -Size
    DC Jack with switch will be bigger than current one(MJ179PH).
    We may have to change the position of Sensor jack and DC jack like this.
    null

    in reply to: Development of HandBoard_v2 #487

    Hiroshi Yamaura
    Keymaster

    Thank you for your great proposal. Moving USB port to wrist side is good idea. We don’t use that port during actual use. We use this port only for debugging. Detaching is not a problem. Let’s continue along Option 2.
    (Option 1 is not bad but if we wire sensor jack and pcb, disassembling BackCover will be a little troublesome).

    in reply to: Development of HandBoard_v2 #478

    Hiroshi Yamaura
    Keymaster

    >Tima
    Wow! Congratulations! It’s really amazing.
    Thank you for you and Don Vukovic’s great work!

    I’m sorry for long silence. I’ve been tied up.
    I will certainly add more information such as switch locations soon.
    This is just a quick note to thank you.

    in reply to: Sensor board #476

    Hiroshi Yamaura
    Keymaster

    I think you have to use EMG for that purpose.
    Although this IR sensor system is affordable and stable,
    you can control only 1 degree of freedom.

    in reply to: Sensor board #459

    Hiroshi Yamaura
    Keymaster

    Hi all,
    I just found QRE 1113 at MOUSER[ http://www.mouser.jp/_/?Keyword=QRE1113 ].
    It can replace TPR-105.

    It is also available in Sparkfun [ https://www.sparkfun.com/products/9453 ].
    The important thing is that the Sparkfun’s one is breakout board.
    You don’t need to make PCB board.
    All you have to do is just to wire it to Arduino micro.
    It will completely work as HACKberry’s muscle sensor.

    I think the sensor was our bottleneck.
    I hope it will help many people who want to make HACKberry.

    in reply to: Future of electrical arms as military product #458

    Hiroshi Yamaura
    Keymaster

    Hi,
    We don’t want to use this hand for military purpose.
    That is also indicated on our Policy.

    1.2. Users shall not use the source codes and data or the inventions released or licensed under the Policy for any of the following purposes:
    1.2.1. military purpose.
    ….

    in reply to: Development of HandBoard_v2 #455

    Hiroshi Yamaura
    Keymaster

    This is current button layout of the HACKberry.

    MAX:memorize the sensor value as maximum value
    MIN:memorize the sensor value as minimum value
    THUMB:change the position of thumb
    POWER:turn on/off the power supply
    LITTLE:hold the position of little (,ring and middle) finger

    User calibrates HACKberry’s finger movement using MAX/MIN button.
    The sensor value is standardized using maximum/minimum value.
    The HACKberry translates this standardized value into motor speed.
    ——-
    However, this method is a bit confusing for actual user.

    Our intern Yuta has came up with new calibration method.

    Once user pushes “calibration” button, HACKberry starts to measure the sensor value for 5 seconds.
    User contracts/relaxes muscles and maximum/minimum values are updated continually during the period.
    Then, HACKberry moves as usual.
    By using this method, we can reduce the number of buttons and user can use the HACKberry more easily.

    If you want to try, please download the sketch from the following link.
    https://drive.google.com/file/d/0B_O4N8Ng5KyZNGtWRU9DWVNzWlk/view?usp=sharing

    in reply to: Opening PCB files #451

    Hiroshi Yamaura
    Keymaster

    Hi, I use KiCAD. This is free and open-souce software.

Viewing 200 posts - 1 through 200 (of 287 total)