Potenial Bug in M106?

JBisc

I observed a potenial bug in the fan function M106.

If I change the PWM output from 0 to a value X, the PWM seem to make something like this:

0%PWM --> 100%PWM for 100-200ms --> x%PWM forever

So there is a small "burst/impulse".... Is this intended?

Config:

M950 F1 C"out8" Q500                         ; create pump 1 on pin out8 and set its frequency
M106 P1 S0 H-1

Change of PWM by:

M106 P1 S1.0

PS: Where is the best place to report potenial bugs? Here in the forum or in the Repository?

jay_s_uk

That's intended.

Add B0 to not have it blip

JBisc

@jay_s_uk Thanks! I still can't believe that somebody implemented 100ms as default.....

jay_s_uk

Some fans are stubborn and don't work well with PWM. The blip is intended to kickstart them before slowing the speed