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Back(Pointer2==1 cube([8, 3, KnobHeight], center=true); if (RingWidth>0 cylinder(r1=KnobMajorRadius + RingWidth, r2=KnobMinorRadius, h=RingThickness, $fn=50, center=true); if (RingMarkings>0 for (i=[0 : RingMarkings-1] rotate([0, 0, 90 + sphere_indents_offset_angle + ((360 / cone_indents_count) * z)] sphere(r = sphere_indents_radius, $fn = 3, center = false); z_position = height - v_margin; working_increment = working_height / (8+tolerance/3); // generally-useful spacing amount for vertical columns of stuff col_left = h_margin; working_increment = working_height / 7; // Radius of the knob, as on a regular polygon. ≥30 means "round, using current quality setting". Cone_indents_faces.
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