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simulator from 2dof to 3 dof

Discussion in 'DIY Motion Simulator Projects' started by Smollett, May 17, 2020.

  1. Smollett

    Smollett New Member

    Joined:
    Mar 27, 2020
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    Location:
    Russia
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    My Motion Simulator:
    2DOF, Arduino
    Hey. I decided to improve my 2dof. Add a third motor. Assembled on two monster motor shields and arduino uno and SMS 3. 12V wipers motors. The problem is as follows:
    In SMC3Utils v1.01, the first and second motors Fpwm = 20 kHz. And the third is only 4 kHz or only 31 kHz. There is no step-by-step adjustment. At a frequency of 4 kHz, the motor makes a mournful squeak, and the engine heats up very quickly in 10 minutes. This is not with two other motors, they are cold. I'm afraid to install at 31 kHz. Who faced such a disaster?

    Found this:
    Fpwm The frequency of the selected Motor PWM. Note Motors 1 and 2 are tied together and will always have the same PWM frequency and have more selection options than Motor 3. This is a limitation of the microprocessor used on the Arduino Uno.

    Then do I need to use 4 kHz? Or 31 kHz?
    Last edited: May 17, 2020