V6 Tool Fan Speed Control Issue

Discussion in 'Getting Started' started by AndyWM, Dec 20, 2019.

  1. AndyWM

    AndyWM New Member

    Dec 20, 2019
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    On my machine with the v6 tools I don't have control over any of the part cooling fans, it's either at 100% or it they remain stationary and just emitt a buzzing sound instead of flowing air.

    I measured the output with a multimeter, the pwm control from the duet seems fine.

    Anyone else had an issues with these fans?

    One of mine was dead out of the box, I replaced it with a same form-factor fan, and that gave me speed control over that tool. (can't use the replacement fan though, the airflow even at max is pathetic.)
  2. John Meacham

    John Meacham Well-Known Member

    Dec 18, 2019
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    For toolhead zero you can add F25000 to the fan definition in config.g to get it to work. I don't know of a workaround for the other fans as of yet as the duex does not have adjustable PWM frequencies.

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