We see a lot of CNC Machines here on Hackaday but not too ... were also ditched in favor of another eBay find, a 10mm ball screw and nut. [Jim] had to make his own brackets to mount the motor ...

Unwilling to deal with the accumulation of chips in the expensive ball screws of his homemade CNC router, [Nikodem Bartnik] took matters into his own hands and created these DIY telescopic ball ...