Squeezebox Keyboard v2112

Split ergonomic computer keyboard. Features adjustable per-finger column stagger, adjustable per-finger splay angle, independent and easily replaceable components. Designed to hold Kailh Choc key switches using Kailh hot-swap sockets. Designed for an Elite-C microcontroller.

Slicing Instructions

See the include screenshot from Prusa Slicer for orientation of parts on the build plate.

• Print the keywells with their narrow edge on the plate. A skirt may help but mine were mostly fine with no skirt.
• Print the posts standing upright
• Print the thumb cluster like a food serving tray with the bottom on the plate
• Print the PCB housing in its normal orientation with the bottom of the case on the print bed
  • You'll need to print one of these as-is and the other one you need to mirror this along the Y axis before slicing to get the symmetry right

I use 0.2mm layer height and a 0.4mm nozzle

What to Print

To make a full split keyboard you need the following count of prints

• 4 single finger columns
• 4 double finger columns
• 2 thumb clusters
• 2 thumb posts
• 8 pairs of posts for the fingers
  • These should ideally be tailored for height matching your finger sizes, which is best done using the FreeCAD files and adjusting the parameters then exporting as STL and then slicing and printing that
• 2 brain boxes
• 2 brain box lids
• 4 pinky posts
• 4 ring posts
• 4 middle posts
• 4 index posts
• 36 washers

Additional Hardware Required

• 2 Elite-C microcontrollers
• 2 RJ-9 jacks
• 2 reset buttons
• M3 heat set threaded inserts (about 40)
• M3 bolts (about 40), mostly 8mm in length but two 12mm for the thumb clusters
• 1 RJ-9 cable
• 1 USB-C cable
• 42 standard through-hole diodes
• 42 Kailh hot-swap sockets
• 42 Kailh choc switches
• 24 AWG copper wire or similar