the only hardware is a 3D-printed holder for the Dremel that replaces the print head. The result is an impressive PCB milling machine that can do double-sided PCBs and make through holes.

That philosophy is shining brightly in [Ivan Miranda] CNC milling machine project, which has been used to upgrade its aluminum and 3D printed frame components to steel. For precision machining on ...

The full machine with CNC conversion and enclosure is no larger than a typical 3D printer. This mill has a number of limitations, but perhaps the biggest of which is that the Y axis is only limited to ...

It has to be said that the mill is tiny and extremely limited in what ... because it runs on a higher end board -- making more room for CNC functionality, which is more complex than a 3D printer.