Here is information about the 4th Beta version of CubeSatSim Pico PCB The files here are for a single board, the CubeSatSim Pico which replaces the STEM Payload Board and the Raspberry Pi Zero. cubesatsim-pico-0.4.G* -- All gerber files used to fabricate PCBs along with .TXT drill file cubesatsim-pico-0.4_schematic.pdf -- Schematic cubesatsim-pico-0.4_pcb.png -- View of board cubesatsim-pico-0.4_pour.png -- View of board with fill cubesatsim-main-pico-0.4_top.png -- Top view of PCB generated by gerbers cubesatsim-main-pico-0.4_bottom.png -- Bottom view of PCB generated by gerbers cubesatsim-main-pico-0.4_tNames.pdf -- Top outline of components cubesatsim-main-pico-0.4_bNames.pdf -- Bottom outline of components cubesatsim-main-pico-0.4.mnt -- top SMD component placement data cubesatsim-main-pico-0.4.mnb -- bottom SMD component placement data cubesatsim-main-pico-0.4_bom.csv.txt -- Bill of Materials in CSV format I use PCBWay to fabricate PCBs https://pcbway.com Here is a very draft bill of materials https://docs.google.com/spreadsheets/d/1ByTG41r7f3VARUdgwTEE2agh6ibNvTtx3HnqygkxIfs/edit?usp=sharing Draft wiki instructions: https://github.com/alanbjohnston/CubeSatSim/wiki/Pico-v0.3-Board