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how to choose DC Motor and Gear box?

Discussion in 'Motor actuators and drivers' started by DSSxSIM, Jun 29, 2016.

  1. DSSxSIM

    DSSxSIM Member

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    My Motion Simulator:
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    I'm trying to build my own 2DOF seat,
    I'm kinda confuse about motors.

    this is what's in my mind:
    Wipe Motors is a cheaper way to get the motor and I guess the power may be much weak compare to DC motors.
    DC motors with gear box go much expensive and it should be much powerful.

    cuz the sellers around Taiwan net store never give clear spec info of their motors,
    I should find some 12V 3200RPM 30Wolt DC motors and two Worm gear box goes right and left, right?
    another problem is, I found there are different kinds of motor, like Server motor, Stepper motor, motor with brake. which one should I take??
    DSSxSIM, Jun 29, 2016
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    noorbeast, Jun 29, 2016
    #2
  3. DSSxSIM

    DSSxSIM Member

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    thank you,
    seems I should take 120 wolt or more.

    cuz Taiwan and China are no good relation on political.
    China take more tax duty for export to Taiwan after Presidential election.
    I'm looking around Taiwan factories.

    any other problem I got is it very rare to find worm gear box in Taiwan.
    and whats the scale should I take? 1:60?
    Last edited: Jun 29, 2016
    DSSxSIM, Jun 29, 2016
    #3
  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    What you specifically choose for motors and gear ratios depends on the actual design you intend building. If it is a 2DOF shoulder mount seat shaker design then the 200 or 250W 25:1 motors should work well. If it were a compact design needing more torque then you may consider the 50:1 gearbox instead.
    • Useful Useful x 1
    noorbeast, Jun 29, 2016
    #4
  5. toanhung

    toanhung New Member

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    what you recommend for 3 dof ? for using with heavy
    toanhung, Jul 1, 2016
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  6. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    It still depends a bit on design, there are some different ways to go about adding heave: https://www.xsimulator.net/community/faq/ways-to-add-heave.224/

    For a traditional 3 motor triangulated design you do need plenty of torque for heave, even with a spring to assist to help in carrying the load. So at least 12V 200W with either 50 or 60:1 gearboxes.
    noorbeast, Jul 2, 2016
    #6
  7. DSSxSIM

    DSSxSIM Member

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    the commercial seat I bought was built by 350w motors,
    it kills the monster motor after 2 or 3 hours racing.
    is that possible to make a fuse on it?
    DSSxSIM, Jul 2, 2016
    #7
  8. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    noorbeast, Jul 2, 2016
    #8
  9. DSSxSIM

    DSSxSIM Member

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    sorry, thats two deals.
    I own a commercial seat, but it got some problem like motor monsters dead, pots dead, and some how.
    it came from China, I have to repair it on my own.
    thats why I wanna to make a better one by myself.
    DSSxSIM, Jul 2, 2016
    #9
  10. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    • Like Like x 1
    • Agree Agree x 1
    noorbeast, Jul 2, 2016
    #10
  11. acadburn

    acadburn New Member

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    Might be a heat issue and not a fuse issue bud.
    acadburn, Sep 2, 2016
    #11
  12. todd

    todd New Member

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    Noorbeast...you seem to have some knowledge of this stuff. I am building a sim very similar to the one fly-Moscow is on the commercial forum, and I need to find out the motor gearbox info as well as rpm and torque specs required...know one seems to answer me. Do you have info or can you send me to someone who may....thx
    todd, Oct 13, 2016
    #12
  13. Jules de Ponte

    Jules de Ponte New Member

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    In terms of torque, as a rule of thumb, how much is enough. I'm looking at some SEW Eurodrive motors with 40Nm.
    Jules de Ponte, Dec 18, 2016
    #13
  14. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Last edited: Dec 24, 2016
    noorbeast, Dec 18, 2016
    #14
  15. Jules de Ponte

    Jules de Ponte New Member

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    Indeed, I have since looked a bit more into the physics and calculated what I need. Thanks for the link.
    Jules de Ponte, Dec 24, 2016
    #15