Build Your Own Multifunctional 4 Axis Cnc Machine E BookPlot, Cut, Drill, Mill and Laser with the Z99 This book covers the construction, hardware, software, and operation of the Z99 CNC machine. This is a multifunctional 4 axis machine for home construction. The capabilities of the Z99 machine include: large format schematic plotting PCB plotting with etch resist pens schematic plotting with conductive ink pens letter cutting out of vinyl paper cutting PCB substrate drilling PCB substrate milling text