Smoothieboiard arrived. Also added separate 3.5A stepper drivers for x & y axles.

Works very well with openpnp after some configuration wonders (creek alphapeths etc).

Also doing now 32 microstepping with full power. Steppers run very Smoothly.

Some calibration is still needed, but generally looks promising.

On clip brdMaker is jogging(0.1mm) on 0.4mm pitch bga pins. Those "big" pads are 0402 what are actually not so big at all.

0.4mm bga is very close to the "state of the art" in pcb technology. Hopefully brdmaker will be placing those soon.