The peak current in the motor is set by the driver and is manually adjusted with a screwdriver on a pot located on the driver board.
Its not impossible to have the currents adjustable in firmware but would need extra hardware and would only make sense in case of a close loop, so on short, afaik nobody uses it like that.
Its not impossible to have the currents adjustable in firmware but would need extra hardware and would only make sense in case of a close loop, so on short, afaik nobody uses it like that.