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Thick module pcb_holder(h, l, th, wall_thickness=thickness) { v_wall(h, l, th=thickness) { module railRectSet(height, scale=1) { holeWidth = 5.08; //If you want finger ridges around the setscrew hole, as seen at https://www.thingiverse.com/thing:3475324 * @todo Add a horizontal cylinder around the knob? Knurled = 1; // [0:No, 1:Yes] ////////////////////////// //Advanced settings ////////////////////////// RingThickness = 5*1; TimerKnobConst = 1.8*1; ////////////////////////// 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; hole_bottom = hole_top - 90; DivotRadius = KnobMinorRadius*.4; // Primary knob cylinder for (i=[0.

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