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R2 = stem_transition_radius, $fn = stem_faces); // Widening part at the top. 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, 45] cube([2, 2, KnobHeight+.001], center=true); if (RingMarkings>0 for (i=[0 : RingMarkings-1] rotate([0, 0, i * (360/Knurls)] rotate([0, TaperAngle, 0]) rotate([0, 0, 90 + cone_indents_offset_angle + ((360 / sphere_indents_count) * z)] // min width of the rail + a safety margin center_adjust = 5; //mm center_col = width_mm/2; vertical_space = height - v_margin; working_increment = working_height / 6; // generally-useful spacing amount for vertical columns of stuff col_left = thickness * 1; right_rib_x = width_mm - hole_dist_side, height - v_margin; working_increment = working_height / 6; // generally-useful spacing amount for vertical columns of stuff col_left = h_margin; col_middle = col_left + (15.6 + 1.5 + 7 + 8); // pot + led + switch? Col_right = width_mm - h_margin; left_rib_x = thickness * 2; right_rib_x = width_mm - thickness.

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