One of the usual suspects, [Ivan Miranda] is at it again, this time building a knee mill from aluminum extrusions and 3D printed fittings. (Video after the break.) Most DIY CNC milling machines we ...

But any CNC router is better than no CNC router ... at around the 5:15 mark — but [Alan] sorted that out with some aluminum extrusion and printed adapters. Those upgrades alone were enough ...