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Inprogress 4dof Motion Rig

Discussion in 'DIY Motion Simulator Projects' started by MincTy, Sep 14, 2021 at 21:22.

  1. MincTy

    MincTy New Member

    Joined:
    Tuesday
    Messages:
    4
    Occupation:
    Engineer
    Location:
    United States
    Balance:
    65Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    4DOF
    Over the last year I have gotten deeper and deeper into the motion sim world. A few years ago I started out with a Logitech steering wheel setup. Eventually made a janky wooden racing setup for some heightened immersion. Later I got my first Oculus and was beyond hooked. So, I started researching motion sims and was disappointed to see how expensive they are to buy prebuilt ones. About a week later a DIY motion sim actuator video showed up in my YouTube suggestions, which was well within budget. I watched that video dozens of times and still sometimes reference it when needed.

    I have ended up designing my own actuators but they are strongly based off of several well known creators in the community. I am in America and wanted to be able to easily get replacement parts from local stores. I'd say I'm midway through my build, possibly farther, but finally have enough progress to start posting on here about it.

    I will be posting my STL files and a parts list for everything I have ordered. I hope I can share some of my struggles and help others build their rigs.
    • Like Like x 1
    Last edited by a moderator: Sep 15, 2021 at 02:34
  2. Ads Master

    Ads Master

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  3. MincTy

    MincTy New Member

    Joined:
    Tuesday
    Messages:
    4
    Occupation:
    Engineer
    Location:
    United States
    Balance:
    65Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    4DOF
    It's been a long process and a lot of test prints before I got the actuators to a point that I really like them, but finally we have arrived. My designs closely resemble that of PeaceMaker's and SilentChill's actuators. Being in America and wanting to source parts locally, kind of forced me to redesign most of the actuator. The motors that I am using are the 80-ST servo motors coupled together with 600mm 2005 ballscrews. I opted for the 2005 ballscrews because I wanted a little bit more strength with only having 4 actuators. I hope these designs help. More build information to follow.

    Attached Files:

    • Useful Useful x 1
  4. MincTy

    MincTy New Member

    Joined:
    Tuesday
    Messages:
    4
    Occupation:
    Engineer
    Location:
    United States
    Balance:
    65Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    4DOF
    Blown apart view of what the inside of my actuator looks like

    [​IMG]
    • Like Like x 2
  5. SeatTime

    SeatTime Well-Known Member

    Joined:
    Dec 27, 2013
    Messages:
    2,716
    Occupation:
    Retired
    Location:
    Newcastle Australia
    Balance:
    28,687Coins
    Ratings:
    +3,003 / 37 / -0
    My Motion Simulator:
    AC motor, Arduino, Motion platform, 6DOF
    I am intrigued in your 4DOF design, as these actuators are designed to be used in a 6DOF?
    • Agree Agree x 1
  6. MincTy

    MincTy New Member

    Joined:
    Tuesday
    Messages:
    4
    Occupation:
    Engineer
    Location:
    United States
    Balance:
    65Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    4DOF
    These actuators are based off of designs for 6dof setups but I don't see why they cant be used for 4dof. My hope for the project is to be able to build a 0dof and add actuators and climb from 2dof to 4dof to 6dof as funds become available. It is a little tricky but playing with rig geometry will be key during each phase. I will have 3D models in the coming days to show what I mean.