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test simtools+stepmotor

Discussion in 'DIY Motion Simulator Projects' started by Bordiin, Jul 25, 2016.

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  1. Bordiin

    Bordiin Active Member

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    This is my second test using simtools+step motors now without encoder



    @Ebtron help me, now we will improve the mechanical and test with the plataform
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    Bordiin, Jul 25, 2016
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  2. engenharia

    engenharia New Member

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    it is realy cool...
    engenharia, Jul 26, 2016
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  3. ferslash

    ferslash Active Member

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    what motors are you using? would them be powerfull enough to move a sim?

    :popcorn
    ferslash, Jul 27, 2016
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  4. Bordiin

    Bordiin Active Member

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    Bordiin, Jul 27, 2016
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  5. Bordiin

    Bordiin Active Member

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    first test using sim+tools + no limits, coupled the seat, i need adjust the spindle step, now it's about 50mm per second, i will buy a new spindle and up the speed to 100mm per second.

    i test with a guy 80kg weight, at the moment the motors works fine.
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    Bordiin, Aug 5, 2016
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  6. Bernd Manger

    Bernd Manger Active Member

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    Hi Bordiin,
    very interesting project. I have no experience with stepper motors. How do you make the position feedback? With counting the steps of the motor or with a pot? Do the stepper motors "forget" some steps under heavy load?
    Bernd Manger, Aug 5, 2016
    #6
  7. Bordiin

    Bordiin Active Member

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    Hello @Bernd Manger, stepper motors are completely faithful to the steps, I don't use feedbacks my program in arduino look when the simtools send the infomation the motor execute the instruction, and wait to the next information, the drive and the motor it's "high quality" ate the moment he doesn't "forget" steps, maybe with we increase the speed it will lost some steps, i need to do improvements in the mechanical next week will arrive my new spindle, and i will change the wood for metal.
    • Informative Informative x 3
    Bordiin, Aug 5, 2016
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  8. ferslash

    ferslash Active Member

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    will you publish your arduino code? :D

    - i guess this is one of the new stuff in the forum since arduino code or since the direct drive wheels

    fer
    • Agree Agree x 1
    ferslash, Aug 6, 2016
    #8
  9. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    Nice step forward in your prototype :D

    That looks promising! It will be very interesting with faster speed
    Can you make a test with rFactor (free demo)? or is it only flysim?
    RacingMat, Aug 8, 2016
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  10. Bordiin

    Bordiin Active Member

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    @ferslash yes i will publish my code, i need comment and adjust have some bugs yet.

    @RacingMat i test with project cars, i will download the rFactor and test maybe in the next days a post the video, because today arrived my new mechanical support.

    Attached Files:

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    Bordiin, Aug 8, 2016
    #10
  11. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    Pcars is fine! don't worry with rFactor (I just wanted to see a car driving test :) )

    How much angle ° (roll and pitch ?) can you have with your setup ?
    RacingMat, Aug 8, 2016
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  12. ferslash

    ferslash Active Member

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    woow, that finished metal actuator looks amazing ... how much are you spending with each of this beauties... ?

    fer
    ferslash, Aug 8, 2016
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  13. ferslash

    ferslash Active Member

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    what is it for, the rail you placed at the side of the column of your actuator?

    fer
    ferslash, Aug 8, 2016
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  14. Bordiin

    Bordiin Active Member

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    here is the video, @RacingMat.

    @ferslash we spent about the U$ 350,00 without the motors and drive, we build our own actuators because to import the SCN5 ou 6 we need pay alot of taxes, and the rail is to guide the actuator.
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    Bordiin, Aug 8, 2016
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  15. Bernd Manger

    Bernd Manger Active Member

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    Outstanding idea with the rail. Where is the pivot point of your rig? In the video it seems as the two actuators carry your whole weight. Amazing!
    Bernd Manger, Aug 8, 2016
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  16. Bordiin

    Bordiin Active Member

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    @RacingMat sorry i forgot the pictures, i don't whats happened buyt i can't post the other file, but i'm using (pitch, roll, heave in 50%)

    Attached Files:

    Bordiin, Aug 8, 2016
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  17. Bordiin

    Bordiin Active Member

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    • Informative Informative x 1
    Bordiin, Aug 8, 2016
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  18. mariano68

    mariano68 Active Member

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    @Bordiin , great work! Did you changed the spindle step or is it the same? What is the pitch of the screw? I think you need 5mm or 6mm to get enough speed.
    mariano68, Aug 9, 2016
    #18
  19. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    noorbeast, Aug 9, 2016
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  20. SeatTime

    SeatTime Well-Known Member

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    Great work :thumbs, unfortunately the squeaking of stepper motors would drive me and everyone in my house crazy, so they have never been an option.
    SeatTime, Aug 9, 2016
    #20
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