This is a variant of a typical OX (Mark Carew inspiration) router using C-Beams/8mm Acme rods to drive all three axis. I went with a 1000mm x 1000mm frame size. Useable space is 28" (711mm) X 26" (660mm) with a Z axis work travel of approx. 3.25" (82.5mm). A TinyG is used as a controller along with Fusion 360/Chilipper as the software for generating and running gcode files.