1. For downloading SimTools plugins you need a Download Package. Get it with virtual coins that you receive for forum activity or Buy Download Package - We have a zero Spam tolerance so read our forum rules first.

    Buy Now a Download Plan!
  2. Do not try to cheat our system and do not post an unnecessary amount of useless posts only to earn credits here. We have a zero spam tolerance policy and this will cause a ban of your user account. Otherwise we wish you a pleasant stay here! Read the forum rules
  3. We have a few rules which you need to read and accept before posting anything here! Following these rules will keep the forum clean and your stay pleasant. Do not follow these rules can lead to permanent exclusion from this website: Read the forum rules.
    Are you a company? Read our company rules

3 DOF build

Discussion in 'DIY Motion Simulator Projects' started by Vincent Bernier, Apr 13, 2021.

  1. Vincent Bernier

    Vincent Bernier New Member

    Joined:
    Apr 8, 2021
    Messages:
    19
    Occupation:
    Method Agent
    Location:
    Quebec, Canada
    Balance:
    123Coins
    Ratings:
    +7 / 0 / -0
    Hi all,

    After seeing halloween2go build https://www.xsimulator.net/community/threads/full-frame-2-dof-traction-loss-new-build.14740/ , I'm making the jump to build my motion rig.

    I'm ready to order parts, but just want to check with you guys if I'm not missing something

    3 Crab pot motors
    1 Arduino A000066 Uno R3
    1 Rextin DC 12V 400W 33.3A Regulated Transformer Power Supply Driver
    3 BTS7960 Motor Driver Board, IBT-2
    3 6127V1A360L.5FS

    I know about the POT coupler, but I will wait till I start the build to get the right ones.
    • Like Like x 1
  2. Ads Master

    Ads Master

    Balance:
    Coins
    Ratings:
    +0 / 0 / -0
  3. Vincent Bernier

    Vincent Bernier New Member

    Joined:
    Apr 8, 2021
    Messages:
    19
    Occupation:
    Method Agent
    Location:
    Quebec, Canada
    Balance:
    123Coins
    Ratings:
    +7 / 0 / -0
    Ok, so I started a small scale rig. I have cheap motors with encoder from amazon. I 3D printed some rod ends and a universal joint. Used fidget spiner bearing as rollers.

    I also ordered a arduino Uno and IBT-2 that I will use for the final rig.

    I am at a point that I need help for the wiring. Here is the wiring for the motors.
    Red: Motor power + (exchange can control rotating and reversing)
    Black: Coding power- negative (3.3-5V) polarity cannot be wrong
    Yellow: Signal feedback
    Green: Signal feedback
    Blue: Coding power + positive(3.3-5V)polarity cannot be wrong
    White: Motor power - (exchange can control rotating and reversing)

    Red and white are easy to figure out.
    Black and Blue to 5v and GND of the arduino
    Yellow and Green, I figure one must go to the A0, but what about the other one?

    Here are picture of what I have so far.
    Rod Ends IMG_6708.jpg
    U-Joint
    IMG_6714.jpg

    Box
    IMG_6712.jpg

    Motors
    IMG_6709.jpg
  4. Vincent Bernier

    Vincent Bernier New Member

    Joined:
    Apr 8, 2021
    Messages:
    19
    Occupation:
    Method Agent
    Location:
    Quebec, Canada
    Balance:
    123Coins
    Ratings:
    +7 / 0 / -0
    Little closer to the final test. After finding out that the encoders of the motors did not work with SMC3, I installed 10k POT with 3D printed brackets.

    Completed the wiring, sorry for the rat nest, got to work on my cable management.

    I did the the SMC3 test by RufusDufus and all motors work.

    Hopping to test soon. Here are more pictures.
    Complet Test Rig
    IMG_6721.jpg
    Front View
    IMG_6722.jpg
    Front pivot for traction loss
    IMG_6723.jpg
    Bad wiring job (but working)
    IMG_6724.jpg
    Arduino and IBT enclosure
    IMG_6725.jpg
    Motor and POT link
    IMG_6726.jpg
    • Like Like x 1
  5. Vincent Bernier

    Vincent Bernier New Member

    Joined:
    Apr 8, 2021
    Messages:
    19
    Occupation:
    Method Agent
    Location:
    Quebec, Canada
    Balance:
    123Coins
    Ratings:
    +7 / 0 / -0
    Hello all,

    Finally got my PSU and motors.

    Now I have a problem, when testing with the SMC3 utility, my PSU go in over voltage protection when testing with the motion. I have Meanwell NES-350-12 PSU. Would adding capacitor in parallel help? If yes, how do I need to wire this?

    Thanks
  6. Vincent Bernier

    Vincent Bernier New Member

    Joined:
    Apr 8, 2021
    Messages:
    19
    Occupation:
    Method Agent
    Location:
    Quebec, Canada
    Balance:
    123Coins
    Ratings:
    +7 / 0 / -0
    I forgot to mention my setup

    3 NES-350-12 PSU
    3 Crab pot motors 180W
    3 IBT-2 controllers

    All the wiring is made with 10GA

    IMG_6759.jpg IMG_6760.jpg

    Attached Files:

  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    16,781
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    121,948Coins
    Ratings:
    +9,633 / 47 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Have you reconfigured SMC3 settings to suit your new hardware?
  8. Vincent Bernier

    Vincent Bernier New Member

    Joined:
    Apr 8, 2021
    Messages:
    19
    Occupation:
    Method Agent
    Location:
    Quebec, Canada
    Balance:
    123Coins
    Ratings:
    +7 / 0 / -0
    Not all the way, when I set PWMmax to 100, this is when they overvolt. At 50 it's fine, but the green line can't keep up with the blue line. I will try to configure other parameters before tweaking the power.
  9. Vincent Bernier

    Vincent Bernier New Member

    Joined:
    Apr 8, 2021
    Messages:
    19
    Occupation:
    Method Agent
    Location:
    Quebec, Canada
    Balance:
    123Coins
    Ratings:
    +7 / 0 / -0
    So I did some fine tuning and was able to get the PSU not to stall except in Square mode, they stall instantly unless I get the power way down and that makes the motors unable to follow in motion mode