Kolbebox USB Passthrough

Kolbe Customs Controller

This project is a remix of the Flatbox rev5 by jfedor2 here: https://github.com/jfedor2/flatbox/tree/master/hardware-rev5. The changes made are the following:

• Shadow lines to make a cleaner seam
• Use of M3 heat inserts
• Compatibility with Choc v2 switches

This project requires the following:

• 3D printed top and bottom case, 11 24mm buttons, and 1 or 2 30mm buttons
• The PCB, with or without the USB passthrough assembely
• RP2040-Zero
• 6x 6x6x5mm tactile switches (these come on the PCB if you buy it preassembled via jlpcb)
• Optional USB port if using USB passthrough for Xbox S|X or PS5
• 12 or 13 Kailh low profile (choc v2) switches of your choice
• 12 or 13 Kailh low profile hotswap sockets
• 7x M3 3.8mm heat set inserts
• 7x M3 8mm Screws and wrench
• (Optional)Right angle USB-C cable

Included in the 3D Models folder, there are 4 case tops. You will choose the coresponding top for if you want 2 thumb buttons, USB passthrough, or both. All options use the same bottom case.

I print my cases and buttons 0.3mm layer height with a 0.6mm nozzle.

To flash the firmware, connect the board to a computer with a USB cable, then press the RESET button while holding the BOOT button on the RP2040-Zero. A drive named "RPI-RP2" should appear. Copy the UF2 file you downloaded to that drive.

PCB design licensed under CC BY-SA 4.0.

PCB design uses the following:

• remix of jfedor2's flatbox rev5
• keyswitches.pretty by daprice (CC BY-SA 4.0)
• RP2040-Zero STEP file downloaded from Waveshare wiki