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Whenever possible; some fabs charge more for ovals vias connect through the power safety block and into any non-high-impedence connections; that is, fat traces to chip power, but not that small - C3 and C4 could use slightly larger spacing on the footprint. Some options: Bourns PTL series, such as: https://www.mouser.com/ProductDetail/Bourns/PTL30-15O0-105A2?qs=fV9UsjselOEqdQiKFAm%2Fog%3D%3D (A1M, orange LED, 30mm travel, 15mm shaft https://www.mouser.com/ProductDetail/Bourns/PTL30-15R0-103B1?qs=X8nz4ozed5glbMOCRmYKzw%3D%3D (B10K, red LED, 30mm travel, 15mm shaft https://www.digikey.com/en/products/detail/bourns-inc/PTL30-15R0-103B1/3781301 (red B10K) and https://www.digikey.com/en/products/detail/bourns-inc/PTL30-15O0-105A2/7314942 (orange A1M *** The first two groups should be 10 nF. Documentation ## Mechanical assembly Documentation # ---> KiCad # For PCBs designed using KiCad: https://www.kicad.org/ # Format documentation: http://kicad-pcb.org/help/file-formats/ # Temporary files *.000 *.bak *.bck *.zip *.DS_Store *~ .gitignore-extra *.dsn *.kicad_pcb-bak *.kicad_sch-bak Initial kicad, images, gitignore for kicad backups afea9d5a2c Final revision; added custom DRC as project file 8976a63dc06fa25beedf8d2553931872c491047e adds README.md file 2537badf28 updates led holes to PCB edge 11.32mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 37-pin D-Sub connector horizontal angled 90deg THT female pitch 2.77x2.54mm pin-PCB-offset 9.4mm 15-pin D-Sub connector horizontal angled 90deg THT male pitch 2.29x1.98mm mounting holes 47.1mm, distance of mounting holes 33.3mm, distance of mounting holes 25mm, distance of mounting holes 63.5mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 26-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.29x1.98mm, pin-PCB-offset 3.0300000000000002mm, distance of mounting holes distance 47.1mm 62-pin.

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