The WorkBee CNC is based on the OX CNC machine, another cartesian router machine built around the OpenBuilds aluminum extrusion. The OX, while a fine machine for DIY tinkerers, uses belts.

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 ...