He’s eschewed a router or extruder, and instead fit an off-the-shelf CNC machine kit with a sandblaster. If you are used to a sandblaster as a means for removing rust from pieces of your motor ...
Nowadays it is even possible to get a 3D printer kit for between $200-300 ... really wasn’t up for a full machine build. He had previously built a CNC Router and decided it was best to add ...