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What weight is on your ballscrew? How much should I test on?

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by JAD, Jun 24, 2018.

  1. JAD

    JAD Active Member

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    Ive setup my first version of a ball screw actuator and have been running it with around 20kg load.
    Im finding it self unwinds and I didnt notice this happening to others. And I thought others would have had higher loads. So Im wondering what have other builders found the load is?

    I estimate the final build platform for my project is going to be around 150kg inc rider. I should allow 110kg rider so I think the platform can be kept to 40kg. So 150/6=25kg each, then allow for the geometry effect of the inclined actuators, then allow that it wouldn't be evenly distributed and I can see the actuator could experience a direct in line 35kg to 40kg load.

    Could builders with ballscrew platforms comment please if they think 35kg is about right?

    Here are videos of my setup with 20kg

    JAD, Jun 24, 2018
    #1
  2. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
    AC motor, Motion platform
    I tested mine up to 70kg. Yes, not unusual for them to back drive with a load when not powered - Ie. with me sitting in the rig, or if you have a heavy rig.
    • Informative Informative x 1
    SeatTime, Jun 25, 2018
    #2
  3. JAD

    JAD Active Member

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    Thanks for the reply, I think I'll adopt 35kg for ongoing testing.
    Now I realise I should plan more for a balanced rig.
    Cheers
    JAD, Jun 25, 2018
    #3