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Showroom My first attempt of a 2Dof simulator

Discussion in 'DIY Motion Simulator Projects' started by daniel_q, Jan 19, 2018.

  1. daniel_q

    daniel_q New Member

    Joined:
    Jan 5, 2018
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    Occupation:
    Software Engineer
    Location:
    Germany
    Balance:
    67Coins
    Ratings:
    +15 / 0 / -0
    My Motion Simulator:
    2DOF
    Hello Community,

    first I want to introduce myself. I'm a 30 year old software engineer from Germany. I´ve been reading this forum for a couple of weeks now. The more I read the more I wanted to build a motion simulator. Of course I wanted to build a 6Dof like who wouldn´t ?

    After more reading I quickly came to the conclusion it would be much wiser and cheaper to start with a simple 2Dof design. This way I´ll be saving money and much more important gain valuable experience.

    As for the design I decided to build a full frame shoulder mounted 2Dof inspired by RacingMats tutorial. Sicne I´ll be using the rig with my HTC Vive it doesnt need to mount the monitors.

    I divided the project into two parts. The mechanical and the electronical part. Since I´m very familiar with Arduinos, wiring stuff and electronics in general it was the mechanical part that got me worried. I´ve never welded anything before nor have I any expierience in metalworking. But what´s a new project without any challenge, right?

    So last week I gathered all of the components I needed.
    For the Frame:
    • rectangular steel tubes
    • racing seat
    • old drive shaft
    • ball joints
    • threaded rods

    Electronics:
    • DC Motors mentioned in the FAQ(see pictures)
    • Arduino Uno
    • Monster Moto Shields (still waiting for delivery)
    • Dell Server PSU 750W 12V
    • 10k Potientiometer

    The build was progressing better and quicker than I thought. Yesterday I more or less finished the frame.
    The next step is to attach the CTC levers to the motor shafts but I still have to figure out what´s the best way to do this. And how long the CTC should be.
    After this is solved I´m going to attach the motors to the lower frame and connect it via threaded rods / ball joints to the upper frame and the mechanical part should be finished (appart from the paint job of course).

    Hopefulley the MM´s will arrive soon so I can get started with the wiring.

    Attached some pictures of the frame and some parts. What do you guys think ? Are there any major flaws or improvments that should be made ?

    Attached Files:

    • Like Like x 8
  2. Ads Master

    Ads Master

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  3. daniel_q

    daniel_q New Member

    Joined:
    Jan 5, 2018
    Messages:
    5
    Occupation:
    Software Engineer
    Location:
    Germany
    Balance:
    67Coins
    Ratings:
    +15 / 0 / -0
    My Motion Simulator:
    2DOF
    So yesterday I was able to finish the mechanical part and did some painting.

    Still waiting for the MM to arrive. Can´t wait beginn the wiring.

    Attached Files:

    • Like Like x 2
  4. daniel_q

    daniel_q New Member

    Joined:
    Jan 5, 2018
    Messages:
    5
    Occupation:
    Software Engineer
    Location:
    Germany
    Balance:
    67Coins
    Ratings:
    +15 / 0 / -0
    My Motion Simulator:
    2DOF
    I finally was able to get all the wiring done.

    All the electronic components are fittet in to an old PC PSU Case. The pots are mounted with some custom 3d printed brackets. The Arduino is running the SMC3 Firmware. It was really easy to setup, great job! I downloaded the demo version of SimTools and did all the settings mentioned in the FAQ. And to my surprise everything worked! Now I am playing with all the settings you can make in SMC3 and SimTools. I will apply for a free DIY license on monday and try some of the other games :)

    I attached some pictures of the wiring and a video of first movements the rig made.

    Attached Files:

    • Like Like x 2
    • Winner Winner x 1
  5. Bord-Ing.

    Bord-Ing. New Member

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    Gut gemacht
  6. Michael898

    Michael898 To build or not to build.

    Joined:
    Dec 24, 2013
    Messages:
    25
    Occupation:
    Welder
    Location:
    Holland
    Balance:
    74Coins
    Ratings:
    +16 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    I like iT !
    I am i a proces of building a seatmover.
    Also with mm.
    Nice job.
  7. Michael898

    Michael898 To build or not to build.

    Joined:
    Dec 24, 2013
    Messages:
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    Occupation:
    Welder
    Location:
    Holland
    Balance:
    74Coins
    Ratings:
    +16 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Did you use 1 or 2 motomonsters?
    Could you maybe very Plessers post a picture of de wirering?
  8. daniel_q

    daniel_q New Member

    Joined:
    Jan 5, 2018
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    5
    Occupation:
    Software Engineer
    Location:
    Germany
    Balance:
    67Coins
    Ratings:
    +15 / 0 / -0
    My Motion Simulator:
    2DOF
    I used a single MM since the motors are rated with 80w. I just put a big heatsink on it and active cooling. I´ve tested the rig with a 95kg person with no issues.

    I´m running the SMC3 Code on the adruino. For the wiring you can just look at this thread https://www.xsimulator.net/communit...3dof-motor-driver-and-windows-utilities.4957/ . There are diagrams of the wiring and other usefull things.

    hope this helps
    • Like Like x 2
  9. Michael898

    Michael898 To build or not to build.

    Joined:
    Dec 24, 2013
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    Occupation:
    Welder
    Location:
    Holland
    Balance:
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    Ratings:
    +16 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Ok. Vielen dank fur das info. :cheers
  10. forumspass

    forumspass New Member Gold Contributor

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    Interessiert...Hast du noch aktuelle Fotos? Danke!
  11. noorbeast

    noorbeast VR - The Next Generation Staff Member Moderator

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    Innovative tech specialist for NGOs
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    My Motion Simulator:
    3DOF, DC motor, JRK