I am not sure yet, but it somehow seems to be related to the P,I and D values.
I thought that the motors won't move with a command of zero, for any value of PID.
But with P=0 it moves without a command, but if a command is set, the motor moves according to that command.
With P=1 it does not move anymore without a command, but it also moves very slow when a command is set.
So it seems as if I have to find the right values for PID (and maybe FF1, not sure yet).
Can someone explain to me why my router is moving without a command, with the usage of P=0?
And can someone offer me his PID values as start values or do they vary strongly for different machines?
As written above, I have a 3axes router similar to this one:, but with servo-motors.