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Placement pwm_in = [input_column + h_margin/2, bottom_row, 0]; pwm_pot = [input_column - h_margin/2, bottom_row, 0]; cv_in = [input_column, bottom_row, 0]; fm_in = [h_margin+working_width/8, row_3, 0]; right_rib_x = width_mm - right_rib_thickness; // projection: make a 2d version v_wall(h=4, l=height-rail_clearance*2, th=right_rib_thickness); //outline of whole PCB cube([137.5, 97, 1], center=true); working_increment = working_height / (8+tolerance/5); // generally-useful spacing amount for vertical columns of stuff col_middle = col_left + (15.6 + 1.5 + 7 + 8); // pot + led + switch? Col_right = width_mm - h_margin; input_column = h_margin; col_middle = col_left + (15.6 + 1.5 + 7 segment LED display in red, yellow or green colour http://www.kingbrightusa.com/images/catalog/SPEC/sa39-11ewa.pdf One digit 7 segment blue LED with right dot One digit 7 segment green LED, http://www.kingbrightusa.com/images/catalog/SPEC/CA56-12EWA.pdf 4 digit 7 segment display 38.1mm 1.5inch single digit 7 segment green -1 overflow 7 segment LCD Double digit 7 segement super bright orange 7 segment LCD Double digit seven segment super bright orange 7 segment green LED One digit 7 segment green, https://docs.broadcom.com/docs/AV02-2553EN -1 overflow 7 segment yellow, https://docs.broadcom.com/docs/AV02-2553EN One digit 7 segment orange LED with right hand decimal, https://docs.broadcom.com/docs/AV02-1588EN 2 digit 7 segment LCD Double digit seven segment green LED display Double digit 7 segment yellow, https://docs.broadcom.com/docs/AV02-2553EN One digit 7 segment high efficiency red, https://docs.broadcom.com/docs/AV02-2553EN One digit 7 segment green LED, http://www.kingbrightusa.com/images/catalog/SPEC/CC56-12YWA.pdf Single digit 7 segment yellow LED display Dubble digit super bright yellow LED with left dot Overflow +- 1 red LED with photo IC package for Everlight ITR1201SR10AR, light-direction upwards, see http://www.everlight.com/file/ProductFile/ITR8307.pdf refective opto couple photo coupler IR Receiver Vishay TSOP-xxxx, MINICAST package, see https://www.vishay.com/docs/82493/tsop311.pdf package for Vishay CNY70 refective photo coupler package for Kodenshi SG-105 with PCB locator, 13 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 Molex Molex 1.00mm Pitch Easy-On Type FFC/FPC, 502250-2391, 23 Circuits (http://www.molex.com/pdm_docs/sd/5022502391_sd.pdf), generated with kicad-footprint-generator Resistor SMD 0815 (2038 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: IPC-SM-782 page 76, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator JST XA series connector, 502443-1370.

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