from scratch. There are lots of videos and pictures of the build on the site. Have a look at the

3D Hacked Gadgets logo, this machine does a great job!

“The CNC mill has been built from scratch. We’ve even made our own controller board to drive

the stepper motors that power the axis of the CNC mill.

What makes the CNC mill tick? It’s the controller board. I don’t want to go into details on how

the CNC controller board has been designed. This is just a quick overview of the project, and a

more detailed description of each subsystem will be written some day. The board is based around a

central PIC controller, the PIC18f2220. An optocoupler bridge isolate the parallel port cable

from a PC from the rest of the board. You cannot see this bridge on the picture below as it is

SMD mounted on the back site of the board. 3 arrays of FET transistors are used to provide motor

control, and the firmware written to the PIC micro controller is compliant with commercial CNC

software such as Mach3 and turbocnc.”