[Perry] was interested in adding a 4th axis to his CNC machine, but not very excited at the prospect of spending hundreds of dollars on the parts and electronics to make it work. There is a very ...

Low cost 3D printers have come a long way in the last few years, but have entry-level CNC machines ... like a Z-axis probe and end stops. If you add those items to the cut-rate 3018 machines ...