ThumbsUp! Keyboards

This page shows the process of ThumbsUp! Trackball v4. Project is here: https://github.com/ak66666/ThumbsUp-Trackball-v4 Part list: https://github.com/ak66666/ThumbsUp-Trackball-v4/blob/main/Kicad/Trackball/Fabrication/Trackball%20v4%2C%20Parts%20for%20DYI%2C%20Costs.xlsx Process Overview - Install ball bearings. - Put pin headers and sockets between the lower and middle decks. - Put sensor and lens into the sensor module. - Attach sensor module to the main PCB. - Install MCU, configuration switches and buttons on the main PCB. - Install battery connector pins -  Install hot-swap switch sockets - Clean the boards -  Install sensor lens -  Place the board stand-offs - Install the battery - Screw the boards together - Install switches -  Put the bump-ons on the bottom -  Flash the firmware - Test the trackball Below are pictures for each of these steps with more details. WARNINGS - Do not chamfer or fillet the PCB edges around the bearing holes, at ...