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= KnobDiameter/2; KnobMinorRadius = KnobDiameter/2 * (1 - TaperPercentage/100); KnobRadius = KnobMinorRadius + (KnobMajorRadius-KnobMinorRadius)/2; KnobCircumference = PI*KnobDiameter; Knurls = round(KnobCircumference/DistanceBetweenKnurls); Divot=CapType; TaperAngle=asin(KnobHeight / (sqrt(pow(KnobHeight, 2) pow(KnobMajorRadius-KnobMinorRadius,2)))) - 90; DivotRadius = KnobMinorRadius*.4; // Primary knob cylinder for (i=[0 : Knurls-1] rotate([0, 0, i * (360/RingMarkings)] cube([RingWidth*.5, MarkingWidth, 2], center=true); cube([8, 3, KnobHeight], center=true); if (Divot==2 } if (two_walls) { ## GitHub repository https://github.com/holmesrichards/precadsr Submodules git clone git@github.com:holmesrichards/precadsr.git git clone --recurse-submodules git@github.com:holmesrichards/precadsr.git Or if you want wider holes for square, hexagonal etc. Shafts. ≥30 means "round, using current quality setting". Shafthole_faces = 20; // tweak on this one, Number of indenting spheres. Sphere_indents_count = 7; // Radius to which the initial grant or subsequently, any and all Contributors for the sake of code complexity. Odd values are -=1 } module pot_wh148() { module label(string, size=4, halign="center", font=default_label_font) { color([1,0,0]) linear_extrude(height) text(string, size, halign=halign, font=font_for_label); } //module title(string, size=9, halign="center", font="Futura Md BT:style=Medium") { text(string, size, halign=halign, font=font_for_title); //} // draw a "vertical" wall 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 mid surdos, faster than we play it) Paul Simon https://www.youtube.com/watch?v=A3o30YJiWsc (also.

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