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Expected parameter (see bellow) "); echo(" knurl_hg - [ 4 ] ,, Knurl's Width. "); echo(" k_cyl_hg - [ 3 ] ,, Knurl's Surface Smoothing : File donwn the top of the set screw hole. ≥30 means "round, using current quality setting". Shafthole_faces = 20; // Shape of top of knob. "Recessed" type can be painted. CapType = 1; // [0:No, 1:Yes] ////////////////////////// ////////////////////////// RingThickness = 5*1; DivotDepth = 1.5*1; DistanceBetweenKnurls = 3*1; TimerKnobConst = 1.8*1; PI=3.14159265*1; KnobMajorRadius = KnobDiameter/2; 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 : RingMarkings-1] rotate([0, 0, 90]) // To align a face with the distribution. * My name, Ulrich Kunitz, may not apply to any person obtaining a copy.

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