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Or conical) knob shape, without the stem. [mm] stem_transition_radius = 8.8; /* [Setscrew Hole (optional)] */ // Create a round shafthole base shape. See knob_base(). Rotate([0, 0, i * (360/RingMarkings)] cube([RingWidth*.5, MarkingWidth, 2], center=true); cube([8, 3, KnobHeight], center=true); if (RingMarkings>0 for (i=[0 : RingMarkings-1] rotate([0, 0, 90 + cone_indents_offset_angle + ((360 / sphere_indents_count) * z)] // min width of the stem. [mm] knob_height = 16; .

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