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2DOF Compact Arduino MotoMonster

Discussion in 'DIY Motion Simulator Projects' started by OlympusSim, Oct 23, 2015.

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  1. OlympusSim

    OlympusSim New Member

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    My Motion Simulator:
    2DOF, Arduino
    Hello everyone

    I start a project with parts of a previously project that had never finished.
    Before i use electronic AMC and H-bridge of Thanos, now with Arduino and MotoMonster

    My Idea is to build something compact as some of those in the forum, but I have some doubts
    that would appreciate if you could help me before make mistakes

    1 - Is there any way to attach levers to the motor shaft without welding and then cant slip.

    2 -Which is the ideal degrees between arm and platform point when sim is a rest level
    I saw a post but not quite understand if you have to be right on top of the motor shaft when
    sim is a rest level
    This is the post title in this forum:
    "Relationship between end of crank arm & mounting point on platform"
    Sorry i can't put a link

    3 - 5v to power the MotoMonster be drawn from the Arduino and this takes the 5v from the usb or
    necessary to give a separate feed

    Then post picture progress

    Thank you

    Attached Files:

    • Like Like x 1
    OlympusSim, Oct 23, 2015
    #1
  2. michto35

    michto35 Member

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    It's a good start, good luck to you
    michto35, Oct 24, 2015
    #2
  3. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, 6DOF
    The ard is powered by the USB and the MM is powered by the Ard on the 5v line. By all means GND has to be connected too.
    Pit, Oct 24, 2015
    #3
  4. OlympusSim

    OlympusSim New Member

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    Thank you Mitcho35
    Ok Pit. Later connect electronic and test, you solved my question 3
    For question 1 i put arm in the way when have load the nuts cant slip because is clockwise. Later put a picture

    Still have doub about my second question is important or i dont care

    Thank you
    OlympusSim, Oct 25, 2015
    #4
  5. pedrono2

    pedrono2 New Member

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    My Motion Simulator:
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    Hello,
    What drives will be used..??
    Thanks
    pedrono2, Oct 30, 2015
    #5
  6. OlympusSim

    OlympusSim New Member

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    Pedrono2 I guest you ask me for SparkFun Monster Moto Shield
    OlympusSim, Oct 30, 2015
    #6
  7. OlympusSim

    OlympusSim New Member

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    My Motion Simulator:
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    Sorry if
    I made a sketch to see if you understand better

    [​IMG]

    Where should connect mounting point on the platform when is a rest level, assuming the travel arm is halfway
    Should be Point A, B or C

    Thanks
    OlympusSim, Oct 30, 2015
    #7
  8. OlympusSim

    OlympusSim New Member

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    My Motion Simulator:
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    Sorry but i need more information

    I make a sketch
    PlatformJoinRod.jpg
    Where should be the point where the platform is connected with the rod
    In the Point A,B or C

    Thanks
    OlympusSim, Oct 30, 2015
    #8
  9. SixCyl

    SixCyl Member

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    Hi OlympusSim
    For me, i think C is the Good Choice but I could be wrong.
    I ask to confirmation.
    SixCyl, Oct 30, 2015
    #9
  10. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    My Motion Simulator:
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    angel between rod and lever should be 90 degree, short said C.
    • Agree Agree x 1
    Pit, Oct 30, 2015
    #10
  11. SixCyl

    SixCyl Member

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    Thanks to confirm !
    SixCyl, Oct 30, 2015
    #11
  12. OlympusSim

    OlympusSim New Member

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    OlympusSim, Oct 30, 2015
    #12
  13. Erwan960

    Erwan960 Active Member Gold Contributor

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    My Motion Simulator:
    2DOF, DC motor, JRK
    It should be B.
    To ensure a symmetrical movement, it is necessary that the center of the handle, when it is in a horizontal plan, should be on the same axis as the upper ball.

    [​IMG]
    Erwan960, Oct 31, 2015
    #13
  14. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    Sorry mate I honestly disagree ;) You cannot simulate a symmetrical movement over the full range of the movements using this system. I agree this happens on a very small radius but when you leave the latter as you want to describe the movements it will continue asymmetrically. Furthermore you should think about the nm relationship, as smaller than 90° as worse the efficiency.

    I could be wrong but interesting in any case :)
    Pit, Oct 31, 2015
    #14
  15. zigzag49

    zigzag49 Active Member

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    My Motion Simulator:
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    I also say B for the same due to the symmetry of movements knowing that the connecting rod should be about 3 times the length of the cam center distance.
    • Agree Agree x 1
    zigzag49, Oct 31, 2015
    #15
  16. insanegr

    insanegr !N$@n€

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    i say B too but only if the lower and higher point of movements will be when the rod comes vertical at the red line
    • Agree Agree x 1
    insanegr, Oct 31, 2015
    #16
  17. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    My Motion Simulator:
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    This is the version which I would prefer:
    new.jpg
    • Agree Agree x 1
    Pit, Oct 31, 2015
    #17
  18. OlympusSim

    OlympusSim New Member

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    Thanks folks

    Erwan960 your sketch is perfect!!!

    I make some test connecting in "B" point
    OlympusSim, Nov 2, 2015
    #18
  19. OlympusSim

    OlympusSim New Member

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    Hello folks. Can you give me some coins to make a test with project cars

    Thanks
    OlympusSim, Nov 18, 2015
    #19
  20. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    My Motion Simulator:
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    I am missing the magic word...
    Pit, Nov 18, 2015
    #20
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