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just another 2dof 2 motomonster seat...

Discussion in 'DIY Motion Simulator Projects' started by Piilukirves, Mar 18, 2015.

Page 1 of 2
  1. Piilukirves

    Piilukirves Member

    Joined:
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    Laukaa
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    My Motion Simulator:
    2DOF
    Hi!
    Here is my way to 2dof...

    Arduino uno R3
    2x motomonster
    2x 1:50 180W wormgear
    Sparco evo II
    logitech G27
    @RacingMat preset
    @RacingMat Ultrasonic PWM
    http://www.xsimulator.net/community/marketplace/ultrasonic-pwm-with-arduino.102/

    IMAG0559.jpg
    Overallview of my messy carage.

    IMAG0558.jpg
    motors and connection rods (60mm arms)

    IMAG0557.jpg
    old quad Battery to prevent my modified ATX power to shutdown

    IMAG0556.jpg
    modified atx power , gives +40Amp no sweat...

    IMAG0555.jpg
    Arduino uno and motomonsters under the overkill cooler...

    Link to video.
    https://www.dropbox.com/s/agng3aro3gou15v/VIDEO0037.mp4?dl=0
    PWM at 155

    Its still kinda crude but going to polish it ...

    Sorry for bad English...
    • Like Like x 2
    Last edited: Mar 19, 2015
    Piilukirves, Mar 18, 2015
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Nice job there @Piilukirves, thanks for sharing the details and photos of your motion simulator.

    If you get the chance members here would really appreciate a video of your motion simulator in action.

    No need to apologise, your English is just fine.
    • Like Like x 1
    noorbeast, Mar 18, 2015
    #2
  3. bsft

    bsft

    Balance:
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    joined today, has only 40 coins, has simtools displaying on the computer, need 250 coins to get simtools and plugins, hasnt bought gold membership......interesting.......
    • Funny Funny x 1
    bsft, Mar 18, 2015
    #3
  4. Piilukirves

    Piilukirves Member

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    Laukaa
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    My Motion Simulator:
    2DOF
    LFS plugin is in simtools and simtools only 10coins...
    Piilukirves, Mar 18, 2015
    #4
  5. Piilukirves

    Piilukirves Member

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    My Motion Simulator:
    2DOF
    Added video...
    • Like Like x 2
    Piilukirves, Mar 18, 2015
    #5
  6. pipis2015

    pipis2015 over-boost

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    you should switch to ultrasonic pwm arduino code.

    then the motors are very quiet.
    • Like Like x 1
    pipis2015, Mar 19, 2015
    #6
  7. Piilukirves

    Piilukirves Member

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    My Motion Simulator:
    2DOF
    I realy need to look for that, Thanks
    other thing that anoys me is that center drift/constant correction of center position.
    Piilukirves, Mar 19, 2015
    #7
  8. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, 6DOF
    Where do I find this code? Thanks.
    Pit, Mar 19, 2015
    #8
  9. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    • Informative Informative x 1
    noorbeast, Mar 19, 2015
    #9
  10. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    @Piilukirves : you're riding your simulator! congrats!!
    Well done

    @noorbeast : you're as fast as ultrasonic PWM!

    @Pit : I wrote this code to allow the Arduino to send 20kHz PWM (instead poor standard 490Hz PWM)
    hence the motors are really quieter (I made a comparison video in the post)
    • Agree Agree x 2
    RacingMat, Mar 19, 2015
    #10
  11. Piilukirves

    Piilukirves Member

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    My Motion Simulator:
    2DOF
    Upgraded to ultrasonic, I like it :D a Lot.

    Still problem with constant correction on straights, bad CG?
    • Like Like x 1
    Piilukirves, Mar 19, 2015
    #11
  12. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    +10,907 / 54 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Can you post a video of your sim in action, it would help to better understand what you are trying to describe.

    Did you find the CG with yourself and all peripheral included, like this:

    balance point.jpg
    noorbeast, Mar 19, 2015
    #12
  13. Alexey

    Alexey Well-Known Member

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    My Motion Simulator:
    3DOF, DC motor, Arduino
    Could also be the way you have mounted the potentiometers, try not to have them too far out on the shaft. You would also need to reinforce the bracket that the potentiometers are mounted on.
    It looks like they could have a bit of flex. Maybe take a video of the potentiometers while you are playing and see if they have any unwanted movement.
    • Agree Agree x 1
    Alexey, Mar 19, 2015
    #13
  14. Piilukirves

    Piilukirves Member

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    My Motion Simulator:
    2DOF
    Piilukirves, Mar 19, 2015
    #14
  15. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    +10,907 / 54 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Can you please describe how you came to the CG settings you are using.

    Have you tried it on the smaller CTC lever setting?

    Can you post your SimTools and Tuning Center settings, particularly for heave.
    noorbeast, Mar 19, 2015
    #15
  16. Piilukirves

    Piilukirves Member

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    My Motion Simulator:
    2DOF
    i did that pipe trick for CG.
    I made my rods littlebit longer and it helped alot so i think im back heavy...
    i try with 40mm arms leght now...
    Piilukirves, Mar 19, 2015
    #16
  17. Roy

    Roy Member

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    I see you have a PC power supply, with all the 12v lines joined together as well as the grounds. Are you using the pwr supply to charge the battery...and the battery to pwr everything else.
    Roy, Mar 19, 2015
    #17
  18. Roy

    Roy Member

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    One other thing, the motors that you have, how do you like them. Friend of mine wants to use wiper motors to build a full sim but unsure if they would stand up. Where is your pivot point under the seat, it looks farther front then it should be?? From what I read, it should be in the center of the seat....??
    Roy, Mar 19, 2015
    #18
  19. Piilukirves

    Piilukirves Member

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    Location:
    Laukaa
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    My Motion Simulator:
    2DOF
    Only meaning of the Battery is to keep ATX powersuply up and running , they tempto shutdown when current goes near to zero...
    4lines of atx is in series (not recommended)...
    Piilukirves, Mar 19, 2015
    #19
  20. Piilukirves

    Piilukirves Member

    Joined:
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    Laukaa
    Balance:
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    My Motion Simulator:
    2DOF
    I dont hawe any opinion about my motors , newer seen wiper sim...
    but they are strong.
    Pivotpoint depends very muts how heavy is it build...
    Piilukirves, Mar 19, 2015
    #20
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