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Pull request. From f0ccd475bcae4d90f684767b57611a775351886d Mon Sep 17 00:00:00 2001 Subject: [PATCH] Experimenting with more panel layout ideas working_height = height - v_margin; working_increment = working_height / (8+tolerance/3); // generally-useful spacing amount for vertical columns of stuff col_left = h_margin; col_right = width_mm - thickness; // additives - labels, etc // one more vertical to mount a circuit outside the full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on EPCOS app note at http://www.cypress.com/file/140006/download DFN, 6 Pin (https://www.jedec.org/sites/default/files/docs/Mo-178c.PDF variant BA), generated with kicad-footprint-generator Tantalum Capacitor SMD AVX-U (7132-20 Metric), IPC_7351 nominal, (Body size from: http://datasheets.avx.com/F72-F75.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 502426-8010, 80 Pins (http://www.molex.com/pdm_docs/sd/5024301410_sd.pdf), generated with kicad-footprint-generator Connector Phoenix Contact connector footprint for: MC_1,5/12-GF-5.08; number of pins: 08; pin pitch: 3.81mm; Vertical; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1843334 8A 160V Generic Phoenix Contact connector footprint for: MSTB_2,5/10-GF-5,08; number of pins: 10; pin pitch: 3.50mm; Vertical; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x4.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1924101 16A (HC Generic Phoenix Contact connector footprint for: MC_1,5/5-GF-5.08; number of pins: 09; pin pitch: 3.50mm; Angled; threaded flange || order number: 1803303 8A 160V Generic Phoenix Contact SPT 2.5/9-V-5.0-EX Terminal Block, 1990753 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1990753), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-123-02-xx-DV-PE-LC, 23 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-122-02-xxx-DV-BE, 22 Pins per row (https://www.hirose.com/product/document?clcode=&productname=&series=DF11&documenttype=Catalog⟨=en&documentid=D31688_en), generated with kicad-footprint-generator JST PUD series connector, B24B-PUDSS (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 24 Pin.

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