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4579d541a87627c8f72d8a9f964497261ff44987 More random files 3D Printing/Panels/Radio Shaek Standoff.scad insert_depth = 12; // [1:1:84] left_panel_width = 40; // [1:1:84] width = 38; // [1:1:84] /* [Holes] */ hole_dist_top = 2.5; // margins from edges v_margin = hole_dist_top*2 + thickness; v_margin = hole_dist_top*2; v_margin = hole_dist_top*2; left_rib_x = thickness * 1; right_rib_x = width_mm - thickness*2; // draw panel, subtract holes // v_wall(h=4, l=height-rail_clearance*2-thickness); // top to bottom of box [right_edge, -extra_depth], // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // bottom horizontal rib // h_wall(h=4, l=right_rib_x); // bottom horizontal rib h_wall(h=4, l=right_rib_x); // bottom horizontal rib // one more 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.onsemi.com/pdf/datasheet/ncp349-d.pdf#page=12), generated with kicad-footprint-generator ipc_gullwing_generator.py SOIC, 24 Pin (http://www.ti.com/lit/ds/symlink/pca9548a.pdf#page=37), generated with kicad-footprint-generator Soldered wire connection, for 2 times 0.75 mm² wires, reinforced insulation, conductor diameter 2.4mm, see http://www.4uconnector.com/online/object/4udrawing/20223.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block Phoenix PT-1,5-14-3.5-H pitch 3.5mm size 42x7.6mm^2 drill 1.2mm pad 3mm Terminal Block Phoenix MKDS-1,5-14-5.08, 14 pins, single row style1 pin1 left Surface mounted pin header SMD 2x36 1.27mm double row Through hole angled pin header THT 2x25 2.54mm double row surface-mounted straight pin header, 1x12, 2.54mm pitch, double cols (from Kicad 4.0.7), script generated Through hole angled socket strip, 1x20, 2.00mm pitch, 6.35mm socket length, single row (from Kicad 4.0.7), script generated Through hole angled pin header, 2x32, 2.54mm pitch, double rows Through hole angled pin header THT 2x08 1.27mm double row surface-mounted straight socket strip, 1x15, 1.00mm pitch, single row style1 pin1 left Surface mounted pin header THT 2x07 2.54mm double row Through hole angled socket strip, 2x37, 1.27mm pitch, single row style2 pin1 right Through hole IDC header, 2x06, 2.54mm pitch, DIN 41651 / IEC 60603-13, double rows, 6.5mm latches, https://docs.google.com/spreadsheets/d/16SsEcesNF15N3Lb4niX7dcUr-NY5_MFPQhobNuNppn4/edit#gid=0 Through hole pin header THT 2x13 2.54mm double row Through hole straight socket strip, 2x11, 2.00mm pitch, 4.2mm pin length, double rows Through hole straight pin header, 1x28, 2.54mm pitch, single row Surface mounted socket strip SMD 1x35 2.00mm single row style2 pin1.

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