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do-it-yourself static 2dof dynamic conversion

Discussion in 'DIY Motion Simulator Projects' started by pfm21, Jun 17, 2020.

  1. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
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    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    111,171Coins
    Ratings:
    +8,992 / 43 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    If you are looking for a cheap option I found these with a quick ebay search: https://www.ebay.it/itm/Jazzy-Elect...rmotor-Robot-Robotics-12-24-volt/324110840108

    There will be others, including new motors, if you search around a bit.
  2. pfm21

    pfm21 pfm21 build 2dof dinamic

    Joined:
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    Balance:
    181Coins
    Ratings:
    +11 / 0 / -0
    My Motion Simulator:
    2DOF
  3. pfm21

    pfm21 pfm21 build 2dof dinamic

    Joined:
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    Balance:
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    Ratings:
    +11 / 0 / -0
    My Motion Simulator:
    2DOF
  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
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    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    111,171Coins
    Ratings:
    +8,992 / 43 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
  5. pfm21

    pfm21 pfm21 build 2dof dinamic

    Joined:
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    My Motion Simulator:
    2DOF
    why are 25.1 and not 60?
  6. pfm21

    pfm21 pfm21 build 2dof dinamic

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    My Motion Simulator:
    2DOF
    but you then changed the laps box? so these are not strong enough?
  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
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    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    111,171Coins
    Ratings:
    +8,992 / 43 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Yes I changed the gearboxes to 60:1s on my compact rig.

    I started with 25:1s, don't get me wrong they will move a properly designed compact design rig OK, but got a bit warm with heavier users and as I mention could easily be back driven, the latter was an issue for my particular use.
  8. pfm21

    pfm21 pfm21 build 2dof dinamic

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    My Motion Simulator:
    2DOF
    ok so I can take them safely?
  9. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    15,085
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    111,171Coins
    Ratings:
    +8,992 / 43 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Yes 25:1s will work on a compact design, but give them the maximum design leverage you can, use sensible CTC for levers, as torque is more important than speed on a compact rig, and minimize the mass where possible.
    • Like Like x 1
  10. pfm21

    pfm21 pfm21 build 2dof dinamic

    Joined:
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    Balance:
    181Coins
    Ratings:
    +11 / 0 / -0
    My Motion Simulator:
    2DOF
    but if i also wanted to add the third motor for the traction loss can i use this scheme by connecting only the 3 motor? thanks

    Attached Files:

    • Like Like x 1
  11. pfm21

    pfm21 pfm21 build 2dof dinamic

    Joined:
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    Balance:
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    Ratings:
    +11 / 0 / -0
    My Motion Simulator:
    2DOF
    I would like to do something like this because it is a great job

    Attached Files:

    • 1.jpg
      1.jpg
      File size:
      232.3 KB
      Views:
      4
    • 2.jpg
      2.jpg
      File size:
      319.5 KB
      Views:
      4
  12. pfm21

    pfm21 pfm21 build 2dof dinamic

    Joined:
    May 13, 2020
    Messages:
    72
    Balance:
    181Coins
    Ratings:
    +11 / 0 / -0
    My Motion Simulator:
    2DOF
    thanks to @diegocom for the excellent work he has shown
  13. pfm21

    pfm21 pfm21 build 2dof dinamic

    Joined:
    May 13, 2020
    Messages:
    72
    Balance:
    181Coins
    Ratings:
    +11 / 0 / -0
    My Motion Simulator:
    2DOF
    but if i also wanted to add the third motor for the traction loss can i use this scheme by connecting only the 3 motor? thanks

    Attached Files: