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Zennix 2DOF Brushless

Discussion in 'DIY Motion Simulator Projects' started by Zennix, Oct 29, 2018.

  1. Zennix

    Zennix New Member Gold Contributor

    Joined:
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    My Motion Simulator:
    2DOF
    Hi all,
    it's time to present you my 2DOF solution.
    After reading a lot in this community and inspired from simulators like silentchills and other great builders, I decide to build my own. The goals for that sim was cheap, easy and the use of brushless components. After some digging I found a project that combines the power of cheap brushless motors with the accuracy of stepper motors. In addition, it understands serial commands and one circuit board can drive two motors. And the best, it costs 150$. If you are interessted in, have a look at https://odriverobotics.com/.
    The ODrive guys are still adding new features and debugging their software, but now I have a version that will be able to drive my 2DOF. It connects via USB direct to the game machine and understands the commands direct from the game engine. No need for additional Arduinos or other stuff.

    Here the pictures of my solution:
    act1.jpg
    Drawing


    IMG_20180708_100459.jpg
    real actuator

    IMG_20180708_100738.jpg
    Encoder for position control

    IMG_20180821_190422.jpg
    kardan of a Mercedes SLK

    IMG_20180821_191413.jpg
    playseat welded

    IMG_20180824_153500.jpg
    base frame

    IMG_20180831_103140.jpg
    three DELL PSUs serieal 36Volts.

    IMG_20180824_103210.jpg
    ODrive

    IMG_20180914_114559.jpg
    one actuator mounted


    First actuator tests


    Project Cars 2 ride
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  2. Ads Master

    Ads Master

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  3. thecure

    thecure New Member

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    nice project......but t the games it supports are?.....bad english
  4. hooshang

    hooshang Active Member Gold Contributor

    Joined:
    Jul 6, 2011
    Messages:
    251
    Balance:
    195Coins
    Ratings:
    +145 / 3 / -0
    My Motion Simulator:
    2DOF, DC motor, AC motor, Arduino, 6DOF
    perfect job,fast and accurate
    can you share your stuff and software...deserve to be on showroom
    thank you
  5. Gadget999

    Gadget999 Active Member

    Joined:
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    My Motion Simulator:
    2DOF, Arduino
    i like the actuators - do you have any idea how much load they can lift ?
  6. Zennix

    Zennix New Member Gold Contributor

    Joined:
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    My Motion Simulator:
    2DOF
    Thanks guys.

    @thecure
    have a look at https://www.xsimulator.net/simtools-motion-simulator-software/#plugins

    @hooshang
    what do you need?

    @Gadget999
    unfortuntely not. But during the testing, NoLimits2 shakes my father (120kg) without getting warm.
    If your PSUs have enough power you can get 2000W out of the motor. https://hobbyking.com/de_de/kd-53-30-high-voltage-brushless-outrunner-190kv.html
    In the firmware of ODrive you can set the maximum current for each motor. I set only 35A as maximum. It's about 1200 W. It's possible to read the amount of the current out of the management interface of ODrive.
    But I didn't do that for now. Nothing gets warm and the power is more than expected.

    Greetings / Zennix
  7. Gadget999

    Gadget999 Active Member

    Joined:
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    Location:
    London
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    My Motion Simulator:
    2DOF, Arduino
    those motors have some punch ! - what rpm and gear ratio do you run on them ?
  8. Zennix

    Zennix New Member Gold Contributor

    Joined:
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    My Motion Simulator:
    2DOF
    Ratio is 1:1,
    1605 ballscrew
    150mm per second = 1800 rpm
  9. frankrizzo2

    frankrizzo2 Member

    Joined:
    Sep 11, 2013
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    Location:
    Minot, ND
    Balance:
    613Coins
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    My Motion Simulator:
    2DOF, DC motor, JRK
    Do you perhaps have a shopping list that you could share with us? Would be nice to have a cheap alternative to the scn5/6 for 2 dof and 3 dof systems. Thanks
    • Like Like x 2
  10. Zennix

    Zennix New Member Gold Contributor

    Joined:
    Mar 4, 2018
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    12
    Location:
    Bayern
    Balance:
    81Coins
    Ratings:
    +28 / 0 / -0
    My Motion Simulator:
    2DOF
    My shopping list for one actuator:
    mechanics:
    Motor: 42,23€ https://hobbyking.com/de_de/kd-53-30-high-voltage-brushless-outrunner-190kv.html
    upload_2018-10-31_8-55-48.png



    SFU1605 Ballscrwew 550mm: 31,86€ https://de.aliexpress.com/item/Mach...489.html?spm=a2g0s.9042311.0.0.de644c4dO7byca
    upload_2018-10-31_8-56-40.png


    2GT Timing Belt 9mm: 10,20€ https://de.aliexpress.com/item/SUMR...129.html?spm=a2g0s.9042311.0.0.de644c4dO7byca
    upload_2018-10-31_8-57-45.png

    40 teeth timing pulley GT2 9mm Belt, 8mm hole Motor side: 2,99€
    40 teeth timing pulley GT2 9mm Belt, 10mm hole Ballscrew side: 2,99€ https://de.aliexpress.com/item/POWG...676.html?spm=a2g0s.9042311.0.0.de644c4dO7byca
    upload_2018-10-31_8-58-55.png


    BK12 BF12 for SFU1605 ballscrew Set: 17,89€ https://www.aliexpress.com/item/BK1...241.html?spm=a2g0s.9042311.0.0.8a304c4dnWV88a
    upload_2018-10-31_9-0-6.png


    carbon tube 3k-LW (Ø 30 / 28) x 1000 mm: 32,30€ https://shop1.r-g.de/4DCGI/ezshop
    upload_2018-10-31_9-1-10.png


    Alu profile 80x20: 22,-€ https://www.smt-montagetechnik.de/produkte/71.htm
    upload_2018-10-31_9-2-1.png


    Balljoint M10: 5,93€ https://www.ebay.de/itm/M10-Gelenkkopf-Gelenklager-Kugelgelenk-Uniballgelenk-Spurstangenkopf-10mm-/371605173666?hash=item568564f5a2
    upload_2018-10-31_9-3-24.png


    12mm Dia Shaft Coupling Motor Connector Steel Universal Joint DIY Steering Steel Universal Joint 9,15€ https://www.ebay.de/itm/DELL-700081...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
    upload_2018-10-31_9-7-53.png

    8mm Aluminiumplate milled by myself.

    A lot of 3D printing parts made by myself.

    A Lot of Bolts and Nuts

    electronics:

    3 x DELL PSU: 3 x 19,90€ https://www.ebay.de/itm/DELL-700081...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
    upload_2018-10-31_9-9-27.png


    Microswitches for endswitch 4,64€ https://www.ebay.de/itm/10-X-Taktsc...m=232952960228&_trksid=p2047675.c100005.m1851
    upload_2018-10-31_9-10-9.png


    ODrive 48V motor driver: 149,-$ https://odriverobotics.com/shop/odrive-v35
    upload_2018-10-31_9-11-5.png


    AMT102 encoder: 20,--€ https://www.mouser.de/ProductDetail/CUI/AMT102-V?qs=sGAEpiMZZMs8jstQXqv0yYb50Z4CpSMXgMm2nTUjwU4=
    upload_2018-10-31_9-12-26.png
    STM32 Programmer for programming the firmware to ODrive: 5,45€ https://www.ebay.de/itm/ST-Link-Sch...684649?hash=item27f980aea9:g:LMMAAOSwuPZbu2h3
    upload_2018-10-31_9-13-17.png


    A lot of cables and plugs.

    Greetings Zennix

    Attached Files:

    • Informative Informative x 3
    • Useful Useful x 2
  11. Zennix

    Zennix New Member Gold Contributor

    Joined:
    Mar 4, 2018
    Messages:
    12
    Location:
    Bayern
    Balance:
    81Coins
    Ratings:
    +28 / 0 / -0
    My Motion Simulator:
    2DOF
    ODrive_sim_Prinzip.jpg
    • Informative Informative x 4
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  12. frankrizzo2

    frankrizzo2 Member

    Joined:
    Sep 11, 2013
    Messages:
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    Location:
    Minot, ND
    Balance:
    613Coins
    Ratings:
    +29 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, JRK
    Wow that was fast!! Thank you for that! I'm excited to give them a try!
  13. hooshang

    hooshang Active Member Gold Contributor

    Joined:
    Jul 6, 2011
    Messages:
    251
    Balance:
    195Coins
    Ratings:
    +145 / 3 / -0
    My Motion Simulator:
    2DOF, DC motor, AC motor, Arduino, 6DOF
    Hi @Zennix
    can you share a picture of your Simtools interface setting for this setup
    thank you for sharing
  14. Zennix

    Zennix New Member Gold Contributor

    Joined:
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    My Motion Simulator:
    2DOF
    OK
    upload_2018-11-2_9-28-23.png
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  15. cliojohn

    cliojohn New Member

    Joined:
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    4
    Occupation:
    Automation engineer
    Location:
    Norway
    Balance:
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    +4 / 0 / -0
    My Motion Simulator:
    2DOF, Motion platform
    Hi, old project maybe, but could maybe someone could share some CAD drawings of the 2DOF frame and actuator assy?
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