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HoleWidth, ignoreMountHoles=false cube([hp*panelHp,panelOuterHeight,panelThickness]); if (deepJackHoles) { } else { cube([12.25, 19.25, thickness]); } // label the whole thing? // top/bottom ribs? // top horizontal rib // h_wall(h=1.6, l=right_rib_x); // one more vertical 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 https://www.analog.com/media/en/technical-documentation/data-sheets/199399fc.pdf TO-92 2-pin leads in-line, narrow, oval pads, drill 0.75mm (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot361-1_po.pdf TSSOP, 28 Pin (http://www.st.com/resource/en/datasheet/stm32f031k6.pdf#page=90), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP, 36 Pin (http://www.ti.com/lit/ds/slvsba5d/slvsba5d.pdf#page=35), generated with kicad-footprint-generator Resistor SMD 1812 (4532 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: http://www.vishay.com/docs/20056/crcw01005e3.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed through.

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