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= h_margin; working_increment = working_height / (8+tolerance/5); // generally-useful spacing amount for vertical columns of stuff right_rib_thickness = 2; arrow_scale_shaft = 1.5; // How much to cut off to create cutouts around the knob? Knurled = 1; // [0:No, 1:Yes] ////////////////////////// ////////////////////////// RingThickness = 5*1; TimerKnobConst = 1.8*1; ////////////////////////// KnobMinorRadius = KnobDiameter/2 * (1 - TaperPercentage/100); KnobRadius = KnobMinorRadius + (KnobMajorRadius-KnobMinorRadius)/2; 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); if (style == "nut"){ } module title(string, size=12, halign="center", font=font_for_title) { color([1,0,0]) linear_extrude(thickness+1) text(string, size, halign=halign, font=font_for_label); } //module title(string, size=9, halign="center", font="Futura XBlk BT:style=Extra Black") { //} // 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 it, under Section 2.1 with respect to any such warranty or additional liability. END OF TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1.

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