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Space Flight Motion Simulator for VR

Discussion in 'DIY Motion Simulator Projects' started by lluisgl7, Mar 20, 2016.

  1. lluisgl7

    lluisgl7 New Member

    Joined:
    Dec 31, 2015
    Messages:
    23
    Occupation:
    Engineer, maker and VR developer
    Location:
    Barcelona
    Balance:
    398Coins
    Ratings:
    +25 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Thanks @Pit , I had not thought about that. I have no problems with soldering at all, just wanted to make it as clean as possible. But you are right, even if I'll be using just one MM by now, maybe in the future I will add more, so it's an important point. Again, thanks for your super fast response!
    • Like Like x 1
  2. lluisgl7

    lluisgl7 New Member

    Joined:
    Dec 31, 2015
    Messages:
    23
    Occupation:
    Engineer, maker and VR developer
    Location:
    Barcelona
    Balance:
    398Coins
    Ratings:
    +25 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Hi guys. I've been playing with the wipers today. I cut the three wires coming out from them and checked the ground isolation with a tester. Seems that my wipers are not grounded, which is great.
    Then I proceeded to identify the cables, and I have some questions. I know that the 3 cables (let's say A, B and C) allow a high speed (A+B) and a low speed (A+C). But what is supposed to happen when you use B and C? I have found what seems to be the high speed combination, when the wiper moves on a 1-second basis (~60rpm), and a much slower combination. And when I use the corresponding B and C cables, the wiper starts spinning like crazy, at about twice the high speed (~120rpm) in one direction, and about 60rpm again in the other direction. Is this normal? If so, why isn't this speed used? Is it dangerous, or is it because it would not have enough torque..?
    Thanks in advance, any help is appreciated :)
  3. lluisgl7

    lluisgl7 New Member

    Joined:
    Dec 31, 2015
    Messages:
    23
    Occupation:
    Engineer, maker and VR developer
    Location:
    Barcelona
    Balance:
    398Coins
    Ratings:
    +25 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Finally some progress!

    IMG_20160731_221521.jpg IMG_20160731_221635.jpg IMG_20160731_221702.jpg

    I decided to use only DM wood because it looks strong enough for this build (and it's cheaper). I still have to shape some of the boards, and I may change the footrest board attachment because with these 45 degrees brackets it'is flexing a little.
  4. lluisgl7

    lluisgl7 New Member

    Joined:
    Dec 31, 2015
    Messages:
    23
    Occupation:
    Engineer, maker and VR developer
    Location:
    Barcelona
    Balance:
    398Coins
    Ratings:
    +25 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Had to destroy the chair a little in order to get to the inner tubes. Now I can attach the chair to the frame from behind too.
    IMG_20160801_221452.jpg IMG_20160801_221402.jpg
  5. lluisgl7

    lluisgl7 New Member

    Joined:
    Dec 31, 2015
    Messages:
    23
    Occupation:
    Engineer, maker and VR developer
    Location:
    Barcelona
    Balance:
    398Coins
    Ratings:
    +25 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    I changed the footrest board inclination from 45 to 30 degrees. 45 was to steep and I would have to raise the chair too much in order to avoid floor contact in high pitch situations.
    As I couldn't find 30deg brackets, I printed some custom parts with my prusa and used some threaded rods to attach the boards. The result seems pretty solid at the moment.
    IMG_20160807_144212.jpg IMG_20160807_140231.jpg IMG_20160807_140211.jpg

    Attached Files:

    • Like Like x 2
  6. lluisgl7

    lluisgl7 New Member

    Joined:
    Dec 31, 2015
    Messages:
    23
    Occupation:
    Engineer, maker and VR developer
    Location:
    Barcelona
    Balance:
    398Coins
    Ratings:
    +25 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    And finally the u-joint got some plates attached! :D
    IMG-20160630-WA0000.jpg
    • Like Like x 2
  7. lluisgl7

    lluisgl7 New Member

    Joined:
    Dec 31, 2015
    Messages:
    23
    Occupation:
    Engineer, maker and VR developer
    Location:
    Barcelona
    Balance:
    398Coins
    Ratings:
    +25 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    More progress!
    IMG_20160808_004808.jpg
    IMG_20160808_220227.jpg
    IMG_20160808_221327.jpg
  8. lluisgl7

    lluisgl7 New Member

    Joined:
    Dec 31, 2015
    Messages:
    23
    Occupation:
    Engineer, maker and VR developer
    Location:
    Barcelona
    Balance:
    398Coins
    Ratings:
    +25 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    Some wood reshaping done. The rig is looking way cooler now!
    IMG_20160816_230250.jpg
    IMG_20160817_005257.jpg
    • Like Like x 1
    • Agree Agree x 1