Dactyl-ManuForm

This is a fork of the Dactyl, a parameterized, split-hand, concave, columnar, ergonomic keyboard. The main change is that the thumb cluster was adapted from the ManuForm keyboard (geekhack). The walls were changed to just drop to the floor. The 3D printed part is the main keyboard. You can attach a bottom plate with screws. The case has holes for heat-set inserts designed to hold 3- to 6-mm long M3 screws. Then, I used wafer-head screws to connect a bottom plate. If wires aren't dangling, a bottom plate may not be needed. You need something on the bottom to keep the keyboard from sliding around. Without a plate, you could use a rubber pad, or you could dip the bottom of the keyboard in PlastiDip.