Custom keyboard (Numpad)

The idea is to make a minimalistic numpad that you can carry with you anywhere, mainly for people taking their keyboards to/from work every day. In addition to that the minimum form factor is decided to fit the Planck made by Jack Humbert over at OLKB, as that is my current favorite keyboard.

• Height: 14mm (Case only, without silicon feet)
• Length: 81mm
• Width: 81mm
• Holes: 14*14mm (Cherry MX compatible)

The Mininum will use the QMK or TMK firmware flashed onto a microcontroller. The plan is program a layout according to the layout below to start with. The code will be in this repo. The controller itself will be either a teensy 2.0 or some kind of arduino clone. To keep the cost down the switches will be handwired and soldered directly to the pcb of the controller.

• The layout was made using www.keyboard-layout-editor.com.
• Middle text = Standard layer (NUMLOCK ON)
• Upper text = Function layer
• Lower text = Standard layer (NUMLOCK OFF)
• No text some of the layers = Transparent key (Same as standard layer)

• Check if anyone is interested in a group buy.
  • What does it cost?
  • Decide the choices of material used (3D-printed in PLA or water cut out of stainless steel)
• Make a prototype out of water cut stainless steel.
  • What does it weigh?
  • Can i get any kind of finishing/treatment on the plates?
• How can i get bluetooth compatibility and will it fit?
• Check if the layout is compatible with different keycap profiles
• Test the layout on a prototype
• 3D-print a prototype (OLD MODEL)
  • Pictures of the prototype (OLD MODEL)
    • 3 parts: Bottom plate, frame and top plate.
    • Material: PLA (3D-printed)
  • 3D-print a new prototype
• CAD the model (OLD MODEL)
  • CAD the new model

The old model looks the same as the current except for the ENTER key being 2x1, covering the current ENTER and DELETE.

Could be reused if someone wants a bigger ENTER key. Though it lacks the space for a function key, reducing its number of possible keys from 31 to 16.

• Hardware: XCore
• Software: GNU v3