There are probably almost as many DIY CNC designs as there are DIY CNCs ... The machine uses HTD5M belts instead of the more prevalent lead screw design. Everything slides on MGN12H slides.

[FreeRider] had built a CNC router before but it was big ... Skate bearings support 5/16″ threaded rod used as lead screws. Lead nuts are tapped HDPE blocks and seem to be doing a satisfactory ...