@MoM0_682390 if you use a PWM fan, you need to change the cycle_time in your printer.cfg to something like █████ (see edit) but as stated in my comment, it blew up my PWM fan! you could try connecting the fan directly to the power supply and only just the PWM wire to the controlboard.
Edit: check your fan's datasheet. if there is a preferred control frequency, use that. if there isn't, 25kHz seems to be a common value. (which would be 0.00004 in Klipper) (edited)
used a MOSFET like @BigBeau suggested but it blew up a PWM fan by connecting it with the MOSFET via power (worked for a day and then made a loud bang). apparently it's better if you connect the fan directly to power and the PWM wire to the MOSFET... learned that the hard way i guess. after getting a new (non-PWM) fan it worked fine!
Anyone know how to make PWM work, seems to be running all or nothing
@MoM0_682390
if you use a PWM fan, you need to change the cycle_time in your printer.cfg to something like █████ (see edit)
but as stated in my comment, it blew up my PWM fan! you could try connecting the fan directly to the power supply and only just the PWM wire to the controlboard.
Edit:
check your fan's datasheet.
if there is a preferred control frequency, use that.
if there isn't, 25kHz seems to be a common value. (which would be 0.00004 in Klipper) (edited)
used a MOSFET like @BigBeau suggested but it blew up a PWM fan by connecting it with the MOSFET via power (worked for a day and then made a loud bang). apparently it's better if you connect the fan directly to power and the PWM wire to the MOSFET... learned that the hard way i guess.
after getting a new (non-PWM) fan it worked fine!