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Motors for gimbal

Discussion in 'New users start here - FAQ' started by niterida, May 14, 2017.

  1. niterida

    niterida Member

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    I would like to build a gyroscope/gimbal based simulator and have the idea of mounting direct drive motors to the pivot points. I will try and draw up what I mean and upload it later but hoping that people might have some input in the meantime.

    So each pivot point will have a motor directly bolted to it and driving the motion by spinning the pivot. This means a 1:1 drive ratio. Given that the gimbal will be balanced the amount of force required will be minimal so I don't think it will require too big a motor.

    My main concern is driving the motor slow enough and reaction times with the 1:1 drive.

    Does anyone know of any motors that may be suitable.
    Maybe something like this : https://www.motiondynamics.com.au/56mm-pmdc-planetary-3.5-rpm-40nm-720-1.html

    The Accelid is what I am basing my design on : http://www.accelid.co.at/showproducts_en.php?id=2

    But movement based on this type of setup :
    https://www.alibaba.com/product-det...pment-human-gyroscope-uk_60580312662.html?s=p
    With an extra motor to drive the internal gimbal.

    Is this a feasible idea or just lunacy?
    Last edited: May 14, 2017
    niterida, May 14, 2017
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    What form of motion simulation games do you plan to use this with?

    Large axis movements may look impressive and suit flight simulation, but are not always a good choice for race simulation.
    noorbeast, May 14, 2017
    #2
  3. niterida

    niterida Member

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    Currently using Assetto Corsa

    The main thinking behind this is not for large axis movements but for simplicity.

    But if I can get a setup for the occassional flight thats always a bonus.

    I have been investigating further and I think I have a better solution than direct drive. I think it may be better to mount the motor directly under the pivot and use chain and sprockets.

    Is there any benefits of linear actuators over a chain or gear drive?
    Are they smoother, faster to react or stronger(more robust)?
    niterida, May 14, 2017
    #3
  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    20,534
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,028Coins
    Ratings:
    +10,776 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Linear actuators are more efficient than worm gearboxes, where the latter can have significant mechanical loss, like 40%.
    noorbeast, May 14, 2017
    #4