Hi everybody, I'm italian. I built this 1100x1100 machine. Thanks to italian openbuilds store for the great service. Now I need to improve it mounting a more powered spindle and rear plates on sliding system. Today I've a 500w spindle. I'd like to upgrade it to 1.5kw. On the z axis I've mounted two nut, one is normal, the other one is the anti_backlash.