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Showroom DIY force feedback steering wheel, using DC motor. based on MMOS

Discussion in 'DIY peripherals' started by ahoenksiluman, Feb 7, 2019.

  1. Lesmore222

    Lesmore222 Member

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    Old phone new phone I am just glad you posted the video. What Sieben said does make sense as far as testing though. I cannot imagine how many hours you must have spent building this rig...Keep up the good work.
    • Agree Agree x 1
  2. ahoenksiluman

    ahoenksiluman Member

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    you need better proper workbench to do that like you say, and i only have what i got...

    but btw, action and reaction is equal. steering wheel pull the scale or me pull the scale when the soft lock hits, that will bring around the same number...

    and thats why i do it when the leverage on top, thats eliminating the gravity too...
  3. Sieben

    Sieben Active Member

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    I mean it jumps back and forth. With turned wheel and then spring applied, more convenient.
  4. ahoenksiluman

    ahoenksiluman Member

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    it jumped because my psu cant handle 100% power needed, thats why i assume the result is 2kg....my psu already old, it cant handle full load in long time, burst only...the result jump to 1.9+kg because the voltage have little bit drop....
  5. Nikiss999

    Nikiss999 Member

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    Wow new wheel is a lot stronger!
    Are you using htd 5m for pulleys? They look like they are 3d printed.
    Did you have a lot of problems attaching that pulley to your motor?
    I have a car cooling fan motor which has ~0.75 Nm at max power and have trouble attaching pulley to it, the thing is totally round.
    Btw my wheel picture is a complete joke. Htd 3m motor pulley (super glued) is skipping teeth and whole construction is flimsy. It will probably have to go to htd 5M
    dc shaft.jpg

    Attached Files:

  6. ahoenksiluman

    ahoenksiluman Member

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    more update...

    this is me test the motor driver bts7960/ibt2, its obviously can deliver high apms in my experience...


    but you must concern about voltage and temp, its little bit sensitive...

    its safer around 22v or lower...
    in my setup, i use 18.8v...
    • Like Like x 1
  7. hellcat

    hellcat New Member

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    @ahoenksiluman , since your encoder is 2 phase, did you leave the pin on stm32 board for z-phase/index unused or is there some sort of hack like they use a switch if using arduino leonardo? can you please share the wiring of encoder?
  8. Nikiss999

    Nikiss999 Member

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    If you don't have index leave it disconnected and deselect the option in mmos. PA0 and PA1 are pins for A and B outputs, plug them reversed if you wanna reverse encoder direction.
  9. hellcat

    hellcat New Member

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    Thanks to confirm this.
  10. Ruk_lee

    Ruk_lee New Member

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    Hello @ahoenksiluman,
    Amazing project. Well detailed.
    I just have a question about how to implement the steering wheel buttons. I can see that you have used an arduino nano in your OMP style wheel here.
    Are you running EMP or MMOS in the nano as well and using it as a separate controller to plug into your pc?
    Or else have you connected it to the leonanrdo & running a custom arduino sketch in it?
    Could you please explain how you've managed to do it?

    Thanks in advance.
    RL
    Last edited by a moderator: Feb 9, 2021
  11. Kunal N

    Kunal N New Member

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    Hello sir, which printer sensor you have used?
    Last edited: Mar 18, 2021
  12. Alecont

    Alecont New Member

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    Hello greetings from Argentina. Congratulations on your work !!

    I want to do something similar, a few pedal using 2 potentiometers and a load cell of 50kg + HX711 in brake, you think you could work using EMC following the tutorial of EbolzMagy ??
  13. ahoenksiluman

    ahoenksiluman Member

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    recent time i make more mod for my DIY pedal, i give it hall sensor but i make it in potentiometer form. so it plug and play if the pedal design build for potentiometer.

    this is some vid how i make it...
    • Creative Creative x 1