Topics created by obzocker

@t3p3tony I have found the problem. I have assigned the Fan to Tool 0. PrusaSlicer always sends M107 at the beginning of every .gcode file. So the fan always got disabled.

@zapta Yes. Set your fan to 0% at the beginning of pause.g, and back to 100% at the end of pause.g.

@obzocker, TMC drivers lose their settings when VIN is removed. RRF will restore the settings when VIN is restored, however the axes will be flagged as not having been homed, so only special moves such as homing moves will be allowed.

@gloomyandy @gloomyandy Ok. The sensorless homing works now.

The problem is that the motor current was to low.
Sensorless homing only works(for me at least) for currents between 480mA-800mA

The documentation highlights that you should/could lower the motor current ("Try to use as low a current as possible") but never states that motor currents which are to low may also not work.

Whats weird is that the lower motor current while in stealthChop seems to effect the sensitivity of the sensorless homing.
When the motor current gets lowered, the overall force/strength of the motor does not change. The only difference is that with higher "motor currents" (M913 between 60 and 100 of 800mA) the sensorless homing works, but with lower "motor currents" (M913 below 60) the Axis crashes like if no sensorless homing is configured. Even at "motor currents" of 1% the motor has the same force/strength as 800mA

Am I missing something obvious?

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