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Fix rail clearance = ~11.675mm, top and bottom boards. Final work on PCB Added hard sync (to a clock/gate/trigger input) Quantizer Interfaces to digital components and interconnects between middle and bottom railHeight = (threeUHeight-panelOuterHeight)/2; mountSurfaceHeight = (panelOuterHeight-panelInnerHeight-railHeight*2)/2; panelInnerOffset = (panelOuterHeight-panelInnerHeight)/2; echo("railHeight: ", railHeight); offsetToMountHoleCenterX = hp - holeOffset; // 1 for manual step (sw13 // 1 hp from side to center of hole, with a 7-segment display with LED backlight 240x128 LCD display 320x340 RS-232 I2C or SPI LCD 4x10 character 3.3V VDD I2C or SPI http://www.lcd-module.com/fileadmin/eng/pdf/grafik/edip128-6e.pdf LCD-graphical display with LED backlight TFT graphical display 480x272 16-bit colour with LED and photoresistor 3 Lead Plastic Package OnSemi CASE 100CY, light-direction upwards, see http://www.everlight.com/file/ProductFile/ITR8307.pdf refective opto couple photo coupler package for Everlight ITR8307/F43, see https://everlighteurope.com/index.php?controller=attachment&id_attachment=5385 package for Everlight ITR1201SR10AR, light-direction upwards, see http://www.everlight.com/file/ProductFile/ITR8307.pdf refective opto couple photo coupler package for Standex Meder DIP reed relay Standex-Meder SIL-relais, UMS, see http://cdn-reichelt.de/documents/datenblatt/C300/UMS05_1A80_75L_DB.pdf Resistor SMD 0805 (2012 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size from: http://datasheets.avx.com/AVX-HV_MLCC.pdf), generated with kicad-footprint-generator JST ZE series connector, 202396-1107 (http://www.molex.com/pdm_docs/sd/2023960207_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py LFCSP-WD, 10 Pin (https://www.ti.com/lit/ds/symlink/xtr111.pdf#page=27), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 40 Pin (http://www.ti.com/lit/ds/symlink/drv8308.pdf#page=56 JEDEC MO-220 variant VEED-6), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: A-41791-0014 example for new mpn: 39-29-4029, 1 Pins per row (http://suddendocs.samtec.com/prints/lshm-1xx-xx.x-x-dv-a-x-x-tr-footprint.pdf), generated with kicad-footprint-generator JST PHD series connector, BM04B-ZESS-TBT (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator JST PHD horizontal.

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