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Showroom Prototype DIY 3-DOF motion platform – Arduino + 3x BTS7960 + SMC3

Discussion in 'DIY Motion Simulator Projects' started by krause-a, Nov 2, 2020.

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  1. krause-a

    krause-a New Member Gold Contributor

    Joined:
    Jul 23, 2009
    Messages:
    13
    Location:
    46514 Schermbeck, Germany
    Balance:
    124Coins
    Ratings:
    +27 / 0 / -0
    My Motion Simulator:
    3DOF, Arduino
    Here are the SMC3 settings.

    The Kp value with 200 and the PWMmax with 200 are relatively low. But so it still works well.
    At higher values, unfortunately, the motors will be very warm and sometimes switch off the motor drivers.

    I am currently thinking about an active cooling of the motors to increase the Kp value and the PWMmax value.

    Attached Files:

    • SMC3.png
      SMC3.png
      File size:
      20.9 KB
      Views:
      268
    krause-a, Dec 20, 2021
    #21
  2. Gustau

    Gustau New Member

    Joined:
    Nov 25, 2020
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    26
    Location:
    Barcelona
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    213Coins
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    +7 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, Motion platform
    Did it work?
    Gustau, May 13, 2022
    #22
  3. Joe Cortexian

    Joe Cortexian Member Gold Contributor

    Joined:
    Sep 8, 2021
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    331Coins
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    +11 / 0 / -0
    My Motion Simulator:
    3DOF
    “I found the reason for this in the program SMC3.ino.
    The subroutine Parsecommand contains the line
    "Serial.println(RxBuffer[0][ComPort])"
    I have commented these out.”

    I am also having an issue with smc3 but when I do a search of the source I do not find any Serial.println at all in the smc3 source. Your screen shot says version 1.00 but I don’t believe that code has that line of code. So apparently we don’t have the same source code.
    Joe Cortexian, May 25, 2022
    #23
  4. krause-a

    krause-a New Member Gold Contributor

    Joined:
    Jul 23, 2009
    Messages:
    13
    Location:
    46514 Schermbeck, Germany
    Balance:
    124Coins
    Ratings:
    +27 / 0 / -0
    My Motion Simulator:
    3DOF, Arduino
    Hi, yes it works.

    I have now been able to integrate a water cooling system.

    I have rolled copper tubes around the motors. Between the motor housing and the copper tube there is a heat conducting foil.
    The pump conveys the heated water through a radiator for cooling.

    Without cooling, the engines had heated up to over 80°C. With cooling it is now below 40°C.

    Attached Files:

    • Creative Creative x 2
    • Like Like x 1
    Last edited: Jun 3, 2022
    krause-a, Jun 2, 2022
    #24
  5. krause-a

    krause-a New Member Gold Contributor

    Joined:
    Jul 23, 2009
    Messages:
    13
    Location:
    46514 Schermbeck, Germany
    Balance:
    124Coins
    Ratings:
    +27 / 0 / -0
    My Motion Simulator:
    3DOF, Arduino
    You are right. I must have downloaded some modified code somewhere
    krause-a, Jun 2, 2022
    #25
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