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Back= hole_dist_top*2; width_mm = hp_mm(h); difference() { union() { difference(){ color([.1,.1,.1]) panel(width); //module title(string, size=9, halign="center", font="Futura XBlk BT:style=Extra Black"; // waves out wall(h=4, w=width_mm-hole_dist_top-4); // 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 the bottom //another rib to balance the switches along the top, to allow printing without support when flipped over. * @todo Refactor the top_rounding() operation faster. Everything else is already fast enough to attach knob Schematics/SynthMages.pretty/Alpha Rotary 12.kicad_mod Latest commits for file musescore_example.mscz Add simplest muscescore example Mon 19 Apr 2021 12:09:41 PM EDT Generated from schematic into main ... Add jlc constraints DRC; replace order number text Fireball/Fireball_panel.kicad_pcb | 3 | 1k | Resistor | | C9 | 4 .../PCB/precadsr_Gerbers/precadsr-B_Mask.gbr | 481 .../PCB/precadsr_Gerbers/precadsr-F_Paste.gbr | 4 Fireball/Fireball.kicad_sch | 48 dd8c61c34f A couple more minor clearance tweaks 9e7b04561b Add ground fills, fix some clearance issues, add PCB slot, more options for potentiometer spoke placement STLs, 10hp version, others schematics b404e3f9c5 Update luther's layout