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Question Converting Gear Box Lever to linear actuator ?

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by sci666, Mar 7, 2023.

  1. sci666

    sci666 Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    i was wondering if it is possible to "easy" convert the lever arm RV30 Gear box to an linear actuator ....

    just remove the lever arm and put a ball screw rod on it : like in this picture - just an example:

    [​IMG]

    add all the linear acuator stuff on the ball screw stuff and add on the other side of the gear box the hall sensor with some gear to reduce the revolutions of the hall sensor to get a longer moving distance of the ball screw actuator instead of the minimal movement for the lever arms ....

    (and of course implement some end switches - if needed ?! )

    would the motor rpm and the gearbox with, for example, ratio 50:1 will work ? or is it to slow ?
    or can the motor directly connected the the ball screw rod with a coupler ?
    sci666, Mar 7, 2023
    #1
  2. Gadget999

    Gadget999 Well-Known Member

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    Yes its possible, however most gearmotors will have a gear reduction and using a ball screw you may get a slow speed.
    Gadget999, Mar 7, 2023
    #2
  3. sci666

    sci666 Active Member Gold Contributor

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    mh okay makes sense ...so theoretically the motor do 2800 rpm ..with the gearbox 50:1 it will be 56 rpm for the ball screw rod .... means 1 round per sec .... thats not so much, right .

    maybe use other gearboxes with a lower ratio like 10:1 or so .... or is it possible to put the ball screw rod directly to the motor shaft ? will the torque be sufficent for that ? for my motors 350Watts and 1.2Nm
    sci666, Mar 8, 2023
    #3
  4. adgun

    adgun Active Member

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    You dont need a gearbox, gives backlash and lower efficienty, with youre 2800rpm dicect on a 1605 ballscrew you get allmost 250mm second
    • Like Like x 1
    adgun, Mar 8, 2023
    #4
  5. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    I would be inclined to think the motor by itself would work. the ball screw kind of works as a gear you know what I mean to kind of torque it up but I would think the motor would work by itself, but don't quote me there's people on here that know a lot more than me. I think the Newton meters will be plenty because the servo Motors that we use only have a Max of three newton meters anyway. most of them are around the 1.5 I think so I know mine are 2.2 N.m maybe so I think you newton meters would be fine
    Rodeo5150, Mar 22, 2023
    #5