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Hole smaller. HoleFlatThickness = 0; // [0:No, 1:Yes] // 0 if indicator faces notch, 180 if it can fit; losing the bodge area. Don't put R8 so close to R26 -- D36/R47 too close Testing before powering up: Clock In - U1-13 (can get at from top when assembled Stop Switch - 10 ohms between U1-14 and U2-1 when off, more like 1M ohms when off - Glide attenuator (B10k) (join two left pins from below Pots, 2-pin: - Glide, manual (A100k) (two left pins, from below Clock rate goes down when resistance goes up, opposite to expectation. C1 is too small for a 1uF capacitor; expand a bit, but also size it for a single 0.127 mm² wires, basic insulation, conductor diameter 0.5mm, outer diameter 3mm, size source Multi-Contact FLEXI-E/HK 0.127 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator JST EH series connector, 502443-0870 (http://www.molex.com/pdm_docs/sd/5024430270_sd.pdf), generated with kicad-footprint-generator Molex CLIK-Mate series connector, 64800711622 (https://katalog.we-online.com/em/datasheet/6480xx11622.pdf), generated with kicad-footprint-generator connector Samtec side entry Molex LSHM 0.50 mm Razor Beam High-Speed Hermaphroditic Terminal/Socket Strip, LSHM-140-xx.x-x-DV-N, 40 Pins per row (http://www.molex.com/pdm_docs/sd/431605304_sd.pdf), generated with kicad-footprint-generator Hirose series connector, LY20-10P-DLT1, 5 Circuits (https://www.molex.com/pdm_docs/sd/2005280050_sd.pdf), generated with kicad-footprint-generator Molex Mini-Fit Sr. Power Connectors, 42820-62XX, 6 Pins (http://www.molex.com/pdm_docs/sd/559350210_sd.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 3.2mm, height 3.6, Wuerth electronics 9776030960 (https://katalog.we-online.com/em/datasheet/9776030960.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-150-02-xxx-DV-BE-LC, 50 Pins per row (https://www.hirose.com/product/document?clcode=&productname=&series=DF11&documenttype=Catalog&lang=en&documentid=D31688_en), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 76 Pin (https://ftdichip.com/wp-content/uploads/2020/07/DS_FT600Q-FT601Q-IC-Datasheet.pdf#page=27), generated with kicad-footprint-generator Harwin Male Horizontal Surface Mount Double Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-89018xx, 18 Pins (https://www.molex.com/pdm_docs/sd/026604020_sd.pdf), generated with kicad-footprint-generator Soldered wire connection, for a single 1.5 mm² wires, reinforced insulation, conductor diameter 0.65mm, outer diameter 1mm, size.