handmade uk iso tenkeyless
since the stalks on my Corsair K68 RGB started to wear out, i've been wanting a new keyboard,
preferrably handmade, and without a numberpad for extra mouse space.
i couldn't find any premade PCBs in ISO for not a stupid amount of money, and handwiring my own is a much cheaper option than getting PCBs cut.
my first handmade keyboard was shit - it used gateron blues, a (badly) 3D printed chassis [sick68] and a teensy 2.0. i forgot to buy stabilizers, but the concept was sound and worked.
- teensy 2.0
- ~100 cherry MX reds
- ~100 1N4148 diodes
- 3D printed custom chassis
- stripped ethernet cable
- costar stabilizers
- susuwatari MT3 caps
- USB mini B cable
the chassis is designed in four parts, as my Anet A8+ 3D printer takes ~ 6 hours for each part. I decided on a two-tone white and black finish, and utilized the glass bed of my printer to create a mirror finish on the top surface.
The bottom casing is at a 3.5 degree angle, for more comfortable use. The top place sits on runners inside the bottom casing. The parts can be "welded" together using a soldering iron.
a TKL ISO board with a full function row has 87 keys, 6 rows and 17 columns - the way a teensy works as a keyboard is by scanning each row and column to check for connections, so to hook up every key i'll need to use exactly 23 pins.
this image is flipped, as you have to solder each wire onto the back of the board, not the front
this is the wiring diagram for the board - each row and column is hooked up to a different pin
the teensy 2.0 can be turned into a keyboard controller using EasyAVR. you just need to supply it with a json file of the keymap, and it'll generate a .py file, or a .hex you can flash. I've provided the .hex and the .py if you'd like to edit the layout.