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Cousin of OSW (Open Sim Wheel)

Discussion in 'DIY Motion Simulator Projects' started by Gadget999, Sep 23, 2017.

Page 13 of 40
  1. Vdub180

    Vdub180 Member

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    Sorted now I had mixed up to of the wires off the arduino, all working now but have a new problem although the feedback works correctly it feels so week I'm running PH-8M motor off a scooter powered off 2 12v battery's connected in series to put out 24v, for some reason it only works at 4Mhz anything more and I have to reset the ibt 2 controller after a few seconds.
    Vdub180, Apr 18, 2018
    #241
  2. Alexey

    Alexey Well-Known Member

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    My Motion Simulator:
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    What are the specs of the motor?
    Alexey, Apr 18, 2018
    #242
  3. Vdub180

    Vdub180 Member

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    Can't find any specs on the motor all I know is its 24v and its off a scooter the model is PH-8M
    Vdub180, Apr 18, 2018
    #243
  4. NjMotion

    NjMotion Active Member Gold Contributor

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    My Motion Simulator:
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    Attached Files:

    • Like Like x 1
    NjMotion, Apr 18, 2018
    #244
  5. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    That is a 0.6 hp motor at 25 amps so it has plenty of power.

    I would imagine you are overheating the ibt2 and it is shutting down.

    Turn ffb down to 50% and see if it takes longer to shut down.

    Are you using the arduino leonardo to control the wheel ?
    Gadget999, Apr 18, 2018
    #245
  6. Vdub180

    Vdub180 Member

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    Yes I'm using the arduino board, silly question but if I put it on 20kHz would that improve the motor out on 50% if not what motor would u recommend to get max power out the ibt
    Vdub180, Apr 18, 2018
    #246
  7. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
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    which software did you program the board with ?
    is the ibt2 getting hot ?
    does it trip out in both directions ?

    (at 20khz the noise should go)
    Gadget999, Apr 18, 2018
    #247
  8. Vdub180

    Vdub180 Member

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    Both directions trip, and I used the directions from the video including links for software

    Attached Files:

    Vdub180, Apr 18, 2018
    #248
  9. danove_b

    danove_b Active Member

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    To start with, you can remove one of the batteries. I assume that you have no need of the full speed of the motor.
    danove_b, Apr 18, 2018
    #249
  10. Vdub180

    Vdub180 Member

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    Won't I lose strength then
    Vdub180, Apr 18, 2018
    #250
  11. Vdub180

    Vdub180 Member

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    Ok now it runs on 20mhz on 100% but only on 12v power but still week I think I need a stronger motor but no idea what is there any way I can use a stepper with my setup
    Vdub180, Apr 18, 2018
    #251
  12. Vdub180

    Vdub180 Member

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    Also no difference in strength between 12 or 24v even tho its a 24v motor, unless I have a dodgy 2nd battery but it does hold a solid 24v when in use so not to sure
    Vdub180, Apr 18, 2018
    #252
  13. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
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    i don't believe a stepper motor is suitable for a FFB steering wheel, it is designed to increment the rotation by one step at a time - internally the coils and magnets are designed to pulse rather than rotate so it will always have a cogging effect

    your setup with a dc controller and encoder is more like a servo motor

    the current available is more important than the voltage available - how many amps can your power supply provide ?

    are you brave enough to connect the motor direct to the power supply / battery - this way you can feel how much power the motor has available !
    Gadget999, Apr 18, 2018
    #253
  14. Daguru

    Daguru Rally drivers do it in the Dirt

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    Not sure why you keep saying a stepper can’t be used ?
    It has and it works very well with a 13nm nema 34
    • Like Like x 1
    Daguru, Apr 18, 2018
    #254
  15. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
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    personally i have not tried one, but i have read reports there is cogging from the people that have built them

    here is a good video explaining the design -
    Gadget999, Apr 18, 2018
    #255
  16. Vdub180

    Vdub180 Member

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    When I get home I will connect it to the battery direct and report bk thanks for all ur help, IF the motor has plenty of power when connected to the battery how would I resolve this if the h bridge is not strong enough to pass the current through
    Vdub180, Apr 19, 2018
    #256
  17. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
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    use 2 h bridges :)
    Gadget999, Apr 19, 2018
    #257
  18. Vdub180

    Vdub180 Member

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    All wired parallel?
    Vdub180, Apr 19, 2018
    #258
  19. Vdub180

    Vdub180 Member

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    Ok power of the motor is about the same through the ibt as it is stright on the battery 24v been double the strength of the 12v so look like I need a stronger motor can anybody recommend anything
    Vdub180, Apr 19, 2018
    #259
  20. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
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    Try a smaller diameter steering wheel. It will increase the torque
    Gadget999, Apr 19, 2018
    #260
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