A mod of the Cornelius keyboard with a 25mm integrated trackball and 4 RGBs. Keyboard is powered by the Waveshare RP2043 Tiny that has a usb c daughterboard PCB. The switch plate in integrated and is 5mm thick with integrated 25mm trackball holder. The case is heavily modified from Cool536lc https://github.com/telzo2000/cool536lc to accomodate the trackball in the center. This pcb also has the option of EVQ roller encoder or a MX switch at the top center. The modified case files have been removed and close sourced since this is not my original design, telzo2000. You will have to design a case around my pcb. QMK code is borrowed from aki27 with modification of adding the Cornball matrix into the layout and the rest of the core code is original.
Initial prototype PCBs have a weird flaw. The "Q" switch footprint somehow shifted upwards making it not fit in the switch plate. So I had to bend the 2 pins and cut off the bottom steam holder area in order to fit the switch plate. Then flux solder the pins. The PCB gerber files have since be corrected but untested since I don't want to waste money on another set of 5. Please print at your own risk.
Production Pics
Q Switch Hack
Fusion360 & EasyEDA Renders
Fit Test
MIT licensed.