One of the original ideas behind the RepRap project was for the machines to create their own upgrades. That philosophy is shining brightly in [Ivan Miranda] CNC milling machine project ...

This 5-axis CNC router could soon be an open source tool ... But the availability of plans would be a huge contribution toward making machine tools accessible at a relatively small price ...

Before testing out the Carvera Air, my experience with CNC was limited to big, improbable-looking machines that use trim routers ... have orange caps for metal-milling bits and yellow caps ...