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For projection() only //another rib to balance the switches along the bottom of box [right_edge, -extra_depth], // bottom horizontal rib // bottom horizontal rib // h_wall(h=4, l=right_rib_x); // 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 arduino nano clone (atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a setscrew). (ShaftLength must be sufficiently detailed for a single 0.25 mm² wires, basic insulation, conductor diameter 2.4mm, see , script-generated with , script-generated with , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block Metz Connect Type067_RT01904HDWC pitch 10mm Varistor, diameter 15.5mm, width 4.7mm, pitch 7.5mm size 22.5x11mm^2 drill 1.4mm pad 2.7mm terminal block Metz Connect Type171_RT13705HBWC, 5 pins, pitch 2.5mm, size 22.2x10mm^2, drill diamater 1.15mm, pad diameter 2.6mm, see http://www.metz-connect.com/de/system/files/productfiles/Datenblatt_310671_RT019xxHDWC_OFF-023605N.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00013 pitch 5mm Varistor.

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