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= 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, 45] cube([2, 2, KnobHeight+.001], center=true); cube([RingWidth*.5, MarkingWidth, 2], center=true); cube([8, 3, KnobHeight], center=true); // Pointer1: Offset hemispherical divot // Divot1: Centered cylynrical divot // Hole for setscrew // Make sure bottom ends at z=0 © 2012 Steve Cooley ( http://sc-fa.com , http://beatseqr.com , http://hapticsynapses.com © 2021 Matthias Ansorg ( https://ma.juii.net A parametric OpenSCAD design that allows to generate CV, in particular for controlling VCO notes. The classic is called a "Baby 8". 0 0 Y N 1 F N DEF SW_DIP_x02.

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