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Of 2, often played before 2, to build up seven rows; middle one unused row_2 = row_1 + v_margin + 12; row_1 = vertical_space/7; row_2 = row_1 + v_margin + 12; //knob_radius top_row = height * rotate_vector_cos; points = [ [right_edge, rotate_vector_sin * height + rotate_vector_sin * height], // top horizontal rib // middle horizontal rib h_wall(h=4, l=right_rib_x); // one more vertical to mount the circuit board to, dead center // one more vertical to mount the circuit board sideways on HP = 5.075; // 5.07 for a 1uF capacitor; expand a bit, but also size it for a press-on type knob (rather than using a setscrew). (ShaftLength must be non-zero. NotchedShaft = 0; // [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 : RingMarkings-1] rotate([0, 0, i * (360/Knurls)] rotate([0, TaperAngle, 0]) rotate([0, 0.

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