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The arrow's head size. Engraved_indicator_head_scale = 2.1; // Scale factor for the flat side (in mm). (ShaftLength must be non-zero.) NotchedShaft = 0; // [0:No, 1:Yes] 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, 90 + sphere_indents_offset_angle + ((360 / sphere_indents_count) * z)] sphere(r = sphere_indents_radius, $fn = knob_faces); // Create a round // stem base and panel: 60mm slider - 7mm, with 3-4mm extra space available - mini toggle switch could be mechanical difficulties using 9 mm.

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