1. Do not share user accounts! Any account that is shared by another person will be blocked and closed. This means: we will close not only the account that is shared, but also the main account of the user who uses another person's account. We have the ability to detect account sharing, so please do not try to cheat the system. This action will take place on 04/18/2023. Read all forum rules.
    Dismiss Notice
  2. 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!
  3. 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
  4. 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

Keith's 6dof (wheelchair motors)

Discussion in 'DIY Motion Simulator Projects' started by Keith, Apr 16, 2022.

  1. luu trung

    luu trung Member

    Joined:
    Apr 4, 2022
    Messages:
    74
    Balance:
    160Coins
    Ratings:
    +7 / 0 / -0
    My Motion Simulator:
    3DOF
    so why on forums do people use 1.2 scale pulleys or gears?
  2. Keith

    Keith Active Member

    Joined:
    Jan 21, 2020
    Messages:
    176
    Occupation:
    Electrician
    Location:
    Canada, Saskatchewan
    Balance:
    130Coins
    Ratings:
    +83 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform
    I think they do this for more accuracy. All I know is I have swapped out different sized pulleys and I'm now happy with 1:1. Every rig is different though.
    Last edited: Jun 20, 2022
  3. Mechatronik

    Mechatronik Member

    Joined:
    May 2, 2022
    Messages:
    45
    Occupation:
    Student
    Location:
    Poland
    Balance:
    - 15Coins
    Ratings:
    +27 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Arduino
    If you have for example 360 degree pot and using only 90, 270 are useless. So with 1:3 will increase 90 to 270 (better resolution) and 90 degree deadzone (safety)
  4. luu trung

    luu trung Member

    Joined:
    Apr 4, 2022
    Messages:
    74
    Balance:
    160Coins
    Ratings:
    +7 / 0 / -0
    My Motion Simulator:
    3DOF
    thanks. i am still confused about this. i am ordering 2 40:20 pulleys for testing, i am using 3 "heavy" shafts up and down. i just need the motor lever to 20 degrees and down 20 degrees rough road . i use googletransistor also a bit confusing . i need your help later
  5. Redcap

    Redcap New Member

    Joined:
    Aug 30, 2019
    Messages:
    3
    Balance:
    - 3Coins
    Ratings:
    +0 / 0 / -0
    You pull off 6 dof out of Yalu wheel chair motors... nice.
    I see you did experiment with different CTC lever lengths what distance worked for you?
    How they work for you when all are idle... do they support your mass?
    I'm currently wondering if investing in additional motors will work for me.

    Attached Files:

  6. Keith

    Keith Active Member

    Joined:
    Jan 21, 2020
    Messages:
    176
    Occupation:
    Electrician
    Location:
    Canada, Saskatchewan
    Balance:
    130Coins
    Ratings:
    +83 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform
    Hey. Sorry for the late response. These motors have plenty of power. The motors are only warm after an hours worth of play time or idle time.(with me sitting in cockpit.) I will take some measurments when I have a chance.
  7. Redcap

    Redcap New Member

    Joined:
    Aug 30, 2019
    Messages:
    3
    Balance:
    - 3Coins
    Ratings:
    +0 / 0 / -0
    No problem, waiting patiently for info :)
    Additional question: Is there any substantial benefit of 100A drivers compared to 20A... taking into consideration motors are rated to 13.4A ? I mean other than quite obvious ones like better thermals and futureproof upgradability?
  8. Keith

    Keith Active Member

    Joined:
    Jan 21, 2020
    Messages:
    176
    Occupation:
    Electrician
    Location:
    Canada, Saskatchewan
    Balance:
    130Coins
    Ratings:
    +83 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform
    The way we are using these controllers is more demanding, being under constant load.
    I'm guessing a lot of these controllers are over rated as well.
  9. luu trung

    luu trung Member

    Joined:
    Apr 4, 2022
    Messages:
    74
    Balance:
    160Coins
    Ratings:
    +7 / 0 / -0
    My Motion Simulator:
    3DOF
    Hi. i see you use 3 arduino connected to 1 usb port.
    i plan to connect 2 arduino and 6 iBT 2 but don't know how to connect to SMC 3.
    Does your 3 ARDUINO have the same port.
    SMC 3 will be like if 2 arduino attached.
    thank
  10. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    21,101
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    148,288Coins
    Ratings:
    +10,895 / 54 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Each Arduino is allocated its own port, and configured accordingly to the port it is assigned, your can find the port by going to the Windows Device Manager then plugin the Arduino and check the port that is assigned.

    Follow the SMC3 instructions for setup: https://www.xsimulator.net/communit...3dof-motor-driver-and-windows-utilities.4957/
  11. luu trung

    luu trung Member

    Joined:
    Apr 4, 2022
    Messages:
    74
    Balance:
    160Coins
    Ratings:
    +7 / 0 / -0
    My Motion Simulator:
    3DOF
    i mean how to get 4,5,6 motor in SMC 3.
    i am waiting for usb hub for testing.
    Or is SMC 3 able to open 2 panels??
  12. luu trung

    luu trung Member

    Joined:
    Apr 4, 2022
    Messages:
    74
    Balance:
    160Coins
    Ratings:
    +7 / 0 / -0
    My Motion Simulator:
    3DOF
    Does your usb hub need additional power?
  13. Keith

    Keith Active Member

    Joined:
    Jan 21, 2020
    Messages:
    176
    Occupation:
    Electrician
    Location:
    Canada, Saskatchewan
    Balance:
    130Coins
    Ratings:
    +83 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform
    Yes it does
  14. SaintFrank

    SaintFrank Member

    Joined:
    Aug 14, 2021
    Messages:
    76
    Occupation:
    Proces operator
    Location:
    Nederland
    Balance:
    136Coins
    Ratings:
    +27 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Hi Keith , great looking rig.

    I have a 2dof with the same motors and thinking of upgrading to 6dof.
    Servo motor route is pretty expensive , this looks like a great alternative.

    -How are the motors holding up ?
    -What is the CTC length of the levers, and how much movement doest it give?
    -What are dimensions of your base ?
  15. Keith

    Keith Active Member

    Joined:
    Jan 21, 2020
    Messages:
    176
    Occupation:
    Electrician
    Location:
    Canada, Saskatchewan
    Balance:
    130Coins
    Ratings:
    +83 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform
    Hi Frank, the motors are holding up great. No issues yet. The rig feels awesome, I don't feel motor lash like I did with the 2dof system. I will post some more pictures and measurements when I have some free time
    • Like Like x 1
  16. Ronan Design

    Ronan Design Roman Design - Custom MSFS Scenery

    Joined:
    Jun 4, 2021
    Messages:
    196
    Occupation:
    Web Designer, MSFS Scenery Designer
    Location:
    Toronto, Canada
    Balance:
    1,329Coins
    Ratings:
    +72 / 1 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Hi, I know this is an old thread, but I'm looking into building a compact 6dof with these motors after enjoying my 2DOF for a few years. So I'd be very much interested in how those motors hold up after a few years, and the dimensions of the rig and length of the rods. Thanks!