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Back

The "back". // Knob base shape without any modifications or additions. Cylinder(r1 = knob_radius_bottom, r2 = knob_radius_top, h = shafthole_height, $fn = top_rounding_faces cylinder(h = stem_transition_height, r1 = stem_radius, r2 = knob_radius_top, h = shafthole_height, $fn = shafthole_faces); // Adapt to a suitable separate entity. Each new version of the rail + a safety margin // margins from edges h_margin = hole_dist_side + thickness; right_rib_x = width_mm - h_margin; col_left = h_margin; col_middle = col_left + (15.6 + 1.5 + 7 + 8); // pot.

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