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Question SMC3 Problem

Discussion in 'DIY Motion Simulator Projects' started by YOSHI CUTTO, Nov 26, 2021.

  1. YOSHI CUTTO

    YOSHI CUTTO New Member

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    My Motion Simulator:
    2DOF
    Hello.

    I'm trying to build a motion simulator that uses Arduino and ibt2.

    The motor I am using is an ASME-04b.


    I am not confident in programming, so I disconnected the motor and the mode is activated by 24VDC (not very reasonable).


    I have a couple of problems with SMC3.


    If I check the connections and start SMC3 as described in the manual (KP400.MAX Limits, Clip input 255), the corresponding motors are turned off.


    Also, the blue gauge is still in the centre before you turn up the PWMax.


    As for the motor OFF, it turned ON when I lowered the MAX Limits.


    When the PWMax is increased while the status is ON, the yellow parameter increases.


    When I turn on the motor, the motor runs and the green line (presumably the potentiometer) runs until it swings past the MAX Limits.


    Are these problems with the SMC3 configuration? Or is it a problem with the SMC3 Arduino code? (Translated from Japanese as my English is not good enough)

    Attached Files:

    YOSHI CUTTO, Nov 26, 2021
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Is there a pot connected to the motor?

    I thought the ASME-04b are servos, is that correct?
    • Agree Agree x 1
    noorbeast, Nov 26, 2021
    #2
  3. YOSHI CUTTO

    YOSHI CUTTO New Member

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    My Motion Simulator:
    2DOF
    Yes, ASME-04b is a servo motor.
    I cut the wire connecting the motor to the driver as a DC geared motor and connect it to the ibt-2.
    The Pot is connected through the shaft of the ASME-04b

    Attached Files:

    Last edited by a moderator: Nov 26, 2021
    YOSHI CUTTO, Nov 26, 2021
    #3
  4. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    Can you not use the servo motor correctly with its own motor driver and potentiometer ?
    Gadget999, Nov 26, 2021
    #4
  5. MarkusB

    MarkusB Well-Known Member Gold Contributor

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, Arduino, Motion platform
    Exactly.

    As far as I remember, these servos have the same connector as usual RC servos, right?
    In this case you can simply connect the servo directly to the Arduino and an external power source.

    I don‘t have the link at hand, but I know that you can find Arduino sketches for RC servos in this forum, and wiring diagrams with external power sources can be found via Google.

    So what kind of simulator are you going to build?
    I know that these servos have been successfully used for G-seats, but they are probably not strong enough for moving an entire seat.
    • Agree Agree x 1
    MarkusB, Nov 27, 2021
    #5
  6. YOSHI CUTTO

    YOSHI CUTTO New Member

    Joined:
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    My Motion Simulator:
    2DOF
    Yes, it is probably the one that has the same wiring layout as the ibt-2.
    I would like to build a seat like the one in the picture that moves the seat through the shaft if possible.

    Attached Files:

    YOSHI CUTTO, Nov 27, 2021
    #6