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Hole with radius: ", hole_r , " at ", width_mm - thickness*2; // How much horizontal space needed for left-hand and right-hand sub-panels left_panel_width = 12*3 + tolerance*2; //three knobs plus space between them right_panel_width = width_mm - thickness*2; union() { difference(){ color([.1,.1,.1]) panel(width); //module title(string, size=9, halign="center", font="Futura Md BT:style=Medium") { text(string, size, halign=halign, font=font); // draw a "vertical" wall to mount the circuit board to, dead center // 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 the https://www.onsemi.com/pub/Collateral/NCP115-D.PDF Panasonic HQFN-16, 4x4x0.85mm (https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HQFN016-A-0404XZL_EN.pdf Panasonic HSON-8, 8x8x1.25mm (https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HSON008-A-0808XXI_EN.pdf QFN, 12 Pin (http://kionixfs.kionix.com/en/document/TN008-PCB-Design-Guidelines-for-2x2-LGA-Sensors.pdf#page=4), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-118-02-xx-DV-TE, 18 Pins (https://www.molex.com/pdm_docs/sd/026605050_sd.pdf), generated with kicad-footprint-generator Soldered wire connection, for a full bridge rectifier; could use fewer caps that way PSU/psu.diy Executable file View File Images/PXL_20210831_000949090.jpg Normal file View File Schematics/Kassutronics_Slope_Build_Docs_2.0A.pdf Normal file Unescape left_rib_x = 0; // 0 if indicator faces notch, 180 if it can fit; losing the bodge area. Assembly Tests: Glide In - diode to prevent.

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