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Questions about Extrusion wall thickness and where to buy?

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Moe Colontonio, Dec 17, 2025.

  1. Moe Colontonio

    Moe Colontonio Member Gold Contributor

    Joined:
    Dec 9, 2017
    Messages:
    129
    Location:
    New Jersey USA
    Balance:
    825Coins
    Ratings:
    +32 / 1 / -0
    My Motion Simulator:
    3DOF
    Hey guys, I've already built a few 4dof rigs based on SCN and SFX 100: https://www.xsimulator.net/community/threads/my-4-dof-g-seat-belt-tensioner-cockpit-build.15845/

    I want to build another 4dof SFX100 rig using 80/20 Extrusion. I plan to use 1.5" x 4.5" for the base, braced as needed, as I know torsional loads are the issue. I'm curious what guys are using for wall thickness? .160" or can I get away with .120"? .120 is cheaper and lighter.

    What are guys doing for traction loss? The last one I did used a leadscrew but it's bulky and I'm open to suggestions.

    Also, any recommendations on US based suppliers? I could also purchase a pre-cut rig and just building off of that if anyone has a good supplier.

    Looking forward to any suggestions here. Thanks!
    Moe Colontonio, Dec 17, 2025
    #1