Custom Mechanical Keyboard Number Pad

After buying a keyboard without a number pad, I quickly realized how much the ten number keys boosted my productivity. Consequently, I custom-built and designed this board for daily use and to fill the space on my desk. The top plate was made using a small hobby-grade CNC mill to shape the black acrylic sheet. Both the CAD and CAM profiles were created using Fusion 360. The housing was 3D printed using a Prusa Mini with PLA filament. The model for this part was created in Onshape. The switches are off-the-shelf Gateron blue switches with a clicky feel and sound. Each switch was hand-wired and soldered into a grid array terminating at a Teensy microcontroller. QMK (Quantum Mechanical Keyboard) firmware was used to flash the microcontroller so that the board would seamlessly work with a USB connection. Ever since the completion of this project, this number pad has remained functional and on my desk.