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Linear actuator for 2dof seat mover

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Max hud, Mar 10, 2020.

  1. Max hud

    Max hud New Member

    Joined:
    Mar 8, 2020
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    +6 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Hello everyone,
    I'm in the process of building my first seat mover and I would like some insight from more experienced builders. Wiper motor seems to be the most popular but a linear actuator with a sliding pot seems more straight forward to me. I've seen them on amazon and they're quite cheap but most of them have a speed of around 12mm/sec. Would that feel too slow on the actual rig; what are your thoughts on this? Also what duty cycle should I aim for if I don't want to melt the motors after 10m of use?
    Max hud, Mar 10, 2020
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
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    20,551
    Occupation:
    Innovative tech specialist for NGOs
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    St Helens, Tasmania, Australia
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    145,124Coins
    Ratings:
    +10,778 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Unfortunately 12mm/sec actuators are not suitable for good motion: https://www.xsimulator.net/community/faq/speed-needed-for-good-motion.218/

    Wiper motors can be used, but only in designs with plenty of inherent leverage, as they are not very powerful.

    Doing some research before getting in too deep is time well spent.

    You will find plenty of helpful information in the FAQs to get you started, in particular check out the fundamentals of motion and the design section: http://www.xsimulator.net/community/faq/

    Have a play with SimCalc, which will help get your head around the trade-offs in Design Vs Physics: https://www.xsimulator.net/communit...e-linear-speed-and-forces-of-your-design.270/

    There is also a FAQ section on DIY linear actuators: https://www.xsimulator.net/community/faq/diy-linear-actuators.248/

    You can go through existing member projects for specific ideas or inspiration: http://www.xsimulator.net/community/forums/diy-motion-simulator-projects.22/

    Or search for specific types of projects using the Google Custom Search function on the Recent page: https://www.xsimulator.net/community/find-new/posts?recent=1

    If something sounds odd then look it up in the glossary: http://www.xsimulator.net/community/faq/glossary-of-acronyms-and-names.66/

    Good luck with your project.
    noorbeast, Mar 10, 2020
    #2