It has to go vertical and diagonal, but it fits on my stock-sized Ender 3 clone, even with a brim. Key layout, dimensions, placement of chamfers and the angles on the underside were all designed with this goal in mind. 30-hour print, if Cura is to be trusted. Going to start with a partial print to make sure the layer lines can handle the stress of the keyswitches being friction fit.

Z-banding is an aesthetic choice, right? …right?