@TonyNo If you should decide to adjust your motor currents the way I would do it, you need to take into account that the X-Carve has two stepper motors wired in parallel. In an ideal world the current would divide equally between the two motors. That’s assuming that the two motors are identical.
However, in the real world no two motors are the same. Differences in manufacturing, etc. will cause the windings to be slightly different from motor to motor. Sometimes more than slightly. So you could have a situation where one motor draws a significantly higher current than the other. This is one of the difficulties in paralleling motors.
If you adjust the current for the driver to be at the maximum specified current on the motor data sheet you could end up with one of the motors below the spec’d current and one of the motors above the spec’d current.
Just a heads up warning if you decide to use this method for setting the current limits on your system.
Larry