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Drop to axis [left_edge, -extra_depth], // bottom horizontal rib h_wall(h=1.6, 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 LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on either internal or external clock signal, start/stop, manual step (sw13) // 1 for once/cont (sw15 // 2 NO Moment switches: // 10 steps (sw1-sw10) // 1 for manual step button in Unseen Servant functions 6f5ee76aea tracks the ratsnest and compactifies the power subsystem Checkpoint after tweaking footprints some more, starting.

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