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Trying to determine design motors for motion sim

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by krazycanuck, Nov 27, 2018.

  1. krazycanuck

    krazycanuck New Member Gold Contributor

    Joined:
    Jun 9, 2018
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    Newfoundland, Canada
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    Good morning all, I have recently built a solid wood frame flight sim platform with an attached seat. I would like to begin by doing a 2DOF moving toward a 3DOF motion sim. I would like to use motors to accomplish this as it seems much more cost effective. I am electronically capable, as I do have many PI's and UNO's on hand from other projects.

    My motion sim is basically a deathmobile rig, (pic of my exact sim cockpit to follow in a day or so, currently doing a mod of it) with a 2009 Mitsubishi Eclipse passenger seat. The weight estimated of the wood, controllers, and seat is approximately 200 lbs. With the occupant I would like to get an all up total of 450 lbs. to be moved easily.

    I do not know if this platform would have to be on a gimbal or if the motors could support the movement and weight themselves... I have seen other designs, however not something as big and heavy as this... I would like to use this cockpit as I specifically created this to be versatile for racing and flight sims, and I like the idea of wood as it very flexible for what you want to use in the future, quick, cheap, easy to use, most materials on hand for any mods.

    I would like suggestions, opinions and really what motors / electronics I should be looking at. I am new to this, but I am committed. I have thought about linear actuators as it would be simply putting one on each corner, but I don't think that will be cheap, as flight sims like xplane and dcs which I use regularly require a good amount of movement, which really increases the price of the linear actuators dramatically. I think this could be accomplished by motors much cheaper...

    The deathmobile rig I referred to is referenced here:

    https://www.isrtv.com/forums/topic/4661-isr-diy-rig-1-the-deathmobile-wood-rig/

    I figure simtools is the way to go as the software of choice, I am hearing a new version of simtools is on the way?

    Again keep in mind I am super green at all of this...
    krazycanuck, Nov 27, 2018
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
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    Innovative tech specialist for NGOs
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    St Helens, Tasmania, Australia
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    +10,778 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    You can use SimCalc to help get your head around the trade offs between design and physics: https://www.xsimulator.net/communit...e-linear-speed-and-forces-of-your-design.270/

    Keep in mind the more mass a rig has the greater the power needed to drive and control is, at greater cost.

    A pivot can be used to mitigate what power is required to dead lift a rig, so has its own pros and cons but is great for he likes of a traditional 2DOF.

    Doing some research and planning is time well spent, and the community here can help you out as you formulate your ideas about what you want to build and even where you can source parts from.

    Have a look at existing member builds, that may help you refine your own project: http://www.xsimulator.net/community/forums/diy-motion-simulator-projects.22/

    You will find plenty to get you started in the FAQs, from design software, dimension of sims, to PSUs, pots, motors, JRKs, Arduinos and Motor Monsters and more: http://www.xsimulator.net/community/faq/

    We have a glossary for all those acronyms we tend to use, which will help you decipher some descriptions: http://www.xsimulator.net/community/faq/glossary-of-acronyms-and-names.66/
    noorbeast, Nov 27, 2018
    #2