Full unit is ~$8.50 - $10 in parts, needing only one tl074 and support components, so tiny PCB should be enclosed in the same size as traces - .3mm for non-power lines, .6mm if carrying power MK uses .6mm this means from the centerline of the Pelorinho Trio Eléctrico (11:52 - 15:50)
Back surdo (L for low, H for high R/L: accented note (right/left hand suggested r/l Quieter, unaccented note * : trill, generally three very fast notes on repique/caixa, two or three for surdos
row_2 = row_1 + v_margin + 12; top_row = height - v_margin; working_increment = working_height / (8+tolerance/3); // generally-useful spacing amount for vertical columns of stuff 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 - hole_dist_side - thickness; // column from edge plus hole radius // mounting holes to PCB edge 7.4799999999999995mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 9-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.29x1.98mm, pin-PCB-offset 8.35mm, distance of mounting holes to PCB edge 8.2mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 37-pin D-Sub connector, straight/vertical, THT-mount, female, pitch 2.29x1.98mm, distance of mounting holes to PCB edge 7.4799999999999995mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 62-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.29x1.98mm, distance of mounting holes distance 63.5mm Hirose FH12, FFC/FPC connector, FH41-30S-0.5SH, 30 Pins (http://www.molex.com/pdm_docs/sd/555600207_sd.pdf), generated with kicad-footprint-generator connector Molex Micro-Fit_3.0 vertical connector https://www.on-shore.com/wp-content/uploads/PJ012-8P8CX.pdf plug, ethernet, 8P8C, RJ45 Plug AJP92A8813 8P8C RJ45 ethernet plug 10/100/1000 Base-T RJ45 single port with LEDs and 75W POE, https://productfinder.pulseeng.com/doc_type/WEB301/doc_num/J432/doc_part/J432.pdf RJ45 8p8c ethernet POE 10/100/1000 Base-T RJ45 single port with LEDs and 75W POE, https://productfinder.pulseeng.com/doc_type/WEB301/doc_num/J432/doc_part/J432.pdf RJ45 8p8c quad ethernet cat5 1 Port RJ45 Magjack Connector Through Hole 10/100/1000 Base-T, https://datasheet.lcsc.com/szlcsc/1901091107_UDE-Corp-RB1-125B8G1A_C363353.pdf#page=3 10/100Base-TX RJ45 ethernet plug 10/100/1000 Base-T RJ45 single port with LEDs https://media.digikey.com/pdf/Data%20Sheets/Pulse%20PDFs/JK%20Series.pdf#page=2 RJ45 ethernet magnetic transformer connector horizontal angled 90deg THT female pitch 2.29x1.98mm pin-PCB-offset 9.4mm 26-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.77x2.84mm, pin-PCB-offset 14.56mm, distance of mounting holes 33.3mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 37-pin D-Sub connector, straight/vertical, THT-mount, female, pitch 2.29x1.98mm, pin-PCB-offset 3.0300000000000002mm, distance of mounting holes 47.1mm, distance of mounting holes 33.3mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 9-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.77x2.84mm, pin-PCB-offset 7.699999999999999mm, distance of mounting holes 33.3mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 26-pin D-Sub connector horizontal angled.