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DIY - 3D PRINTED DIRECT DRIVE

Discussion in 'Direct Drive Wheels' started by Alexandru Popa, Aug 5, 2024.

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  1. Alexandru Popa

    Alexandru Popa New Member

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    My Motion Simulator:
    DC motor, Arduino
    Hello,

    It's not my first post here, I already have a 2dof system for about 2 years and I'm very happy playing on it.

    Now, I want to present, how i like to call it, my 3D printed Direct Drive FFB Wheel. It's printed in PLA, 1 bearing used, 3 x M12 bolts, 3 x M4x50, and 1 section of a M14 threaded rod, about 12 cms in lenght. everything else is 3d printed.

    Electronics: DC Motor - MINORTA 27v Servomotor (from some old RICOH office printer) MCU - STM32, driver - BTS7960, 2 x 12V Fans.
    software - EMC firmware

    I've uploaded a video a couple of months ago, some minors changes have been made since then, as you can see in attached pictures.

    Attached Files:

    • Like Like x 1
    • Creative Creative x 1
    Alexandru Popa, Aug 5, 2024
    #1
  2. Manuel Gonzalez

    Manuel Gonzalez New Member

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    My Motion Simulator:
    3DOF, DC motor, Arduino
    I’m impressed,incredible engineering .
    • Like Like x 1
    Manuel Gonzalez, Dec 22, 2024
    #2
  3. NinjaFrozr

    NinjaFrozr New Member

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    I'm guessing that's an encoder at the back of your motor there. How can we connect an encoder to this if we our motor doesn't have one ? Also, are you planning on sharing the STL files, i would love to try this project myself.
    • Like Like x 1
    NinjaFrozr, Jan 3, 2025
    #3
  4. Alexandru Popa

    Alexandru Popa New Member

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    I'm using a servomotor, which is defined by having an encoder (or potentiometer) for feedback. This particular motor has an encoder mounted on its end, but an encoder can be mounted on almost any motor. However, this direct drive base uses a motor with an integrated encoder, and there are many such motors available online.

    Regarding sharing the STL files, yes, they will be available for download. However, I need to make a few adjustments and make some settings parametric, as you might have a different motor with other dimensions.
    • Like Like x 1
    Alexandru Popa, Jan 4, 2025
    #4
  5. cfischer

    cfischer Active Member Gold Contributor

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    How is this direct drive?
    • Like Like x 1
    cfischer, Jan 4, 2025
    #5
  6. Alexandru Popa

    Alexandru Popa New Member

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    My Motion Simulator:
    DC motor, Arduino
    I've been using it for about a year, and I'm impressed. All the parts are in perfect condition; there's no need to print them again, and there's no "wear and tear." Considering how cheap it was, for me, it's more than perfect. I don't want to spend 500 euros on a base when I can print it again every two days if needed.
    Alexandru Popa, Jan 4, 2025
    #6
  7. Stahlwolle

    Stahlwolle Member

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    My Motion Simulator:
    3DOF, DC motor, Arduino
    I Love the Idea!
    What do you think the torque is and do you have a link to the motor or a suitable one? I would like to recreate it
    Stahlwolle, Jan 5, 2025
    #7
  8. NinjaFrozr

    NinjaFrozr New Member

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    with a belt driven system, it is easy to attach a separate rotary encoder to the shaft but with a direct drive system it's a bit trickier. I've seen people drill the back of the motor to stick an encoder in there but i don't know how exactly that works.
    NinjaFrozr, Jan 6, 2025
    #8