main MK_VCO/Fireball/Fireball_panel.kicad_pro 505 lines { "board": { Add a printer_hole_scale parameter (or similar) to scale holes so that printing them offsets any printer calibration error. This keeps local calibration issues separate form the shafthole_radius parameter, which is what MK uses a ground plane. - when pressed, short +12V and Reset In - U1-13 (can get at.