On Oct 30, 2013 by John Baichtal
Stijn Kuipers is using his Makeblock to build a PCB mill with two rotary tools, one for boring the vias, and the other for milling the traces. It uses three microstep stepper drivers, one for the Y and two to control the Z for the drills. The idea is that Stijn can set up his PCBs to fully mill on a single machine. Pretty sweet!
You can see the full article here.