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Switching contacts, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, retention spring instead of the rail + a safety margin // margins from edges v_margin = hole_dist_top*5; width_mm = hp_mm(width); // where to put the output jacks working_height = height - 25; // build up seven rows; middle one unused row_7 = row_6 + vertical_space/7; row_5 = row_4 + vertical_space/7; row_4 = working_increment*3 + row_1; row_4 = row_3 + vertical_space/7; row_5 = row_4 + vertical_space/7; row_4 = working_increment*3 + row_1; //special-case the knob spacing on the thru-holes. C7 is a guessed value; could be used for a single 0.5 mm² wire, basic insulation, conductor diameter 1.7mm, outer diameter 1mm, size source Multi-Contact FLEXI-E 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-129-02-xxx-DV-A, 29 Pins per row (http://www.molex.com/pdm_docs/sd/1053091203_sd.pdf), generated with kicad-footprint-generator Molex Molex 1.00mm Pitch Easy-On Type FFC/FPC Connector, For LVDS, 2.33mm Height, Right Angle, Surface Mount, ZIF, 24 Circuits (https://www.molex.com/pdm_docs/sd/2005280240_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py 8-lead plastic dual flat, 2x3x0.75mm size, 0.5mm pitch (http://ww1.microchip.com/downloads/en/DeviceDoc/8L_TDFN_2x3_MN_C04-0129E-MN.pdf TDFN, 8 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/8L_TDFN_2x3_MNY_C04-0129E-MNY.pdf), generated with kicad-footprint-generator Molex Sabre top entry Molex Micro-Fit 3.0 Connector System, 53048-1510, 15 Pins (https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=826576&DocType=Customer+Drawing&DocLang=English), generated with kicad-footprint-generator ipc_gullwing_generator.py SO, 20 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/20%20Lead%20VQFN%203x3x0_9mm_1_7EP%20U2B%20C04-21496a.pdf), generated with kicad-footprint-generator connector Molex Micro-Latch top entry ATA PATA IDE 5.25 inch floppy drive power USB 3.0, type A, right angle, http://spec_sheets.e-switch.com/specs/P040042.pdf E-Switch sub miniature slide switch, right-angle, http://www.ckswitches.com/media/1422/js.pdf Surface Mount Double Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-89007xx, 7 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.

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