PCB milling with MPCNC Milling and drilling with the MPCNC to make PCB. October 2019 MPCNC PCB milling with MPCNC - Mazzo.me Video of the making of a PCB with my MPCNC: The engraving bit used is 45° and 0,3 mm diameter. PCB. CNC Driver Electronics Milling MPCNC