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Such description must be non-zero.) ShaftDiameter = 10; // [1:1:84] /* [Holes] */ hole_dist_top = 2.5; //mm first_col = 10.1+center_adjust; //mm second_col = width_mm/2; vertical_space = height - rail_clearance - thickness*2 - 16.5/2; // 16.5 is the "back". // Knob base shape without any modifications or additions. Cylinder(r1 = knob_radius_bottom, r2 = stem_transition_radius, $fn = top_rounding_faces square(top_rounding_radius + pad, top_rounding_radius + pad); circle(r = top_rounding_radius, $fn = shafthole_faces); // Adapt to a D-shaped shafthole if desired. If(shafthole_cutoff_arc_height != 0) { 2 * nothing; z_position = height - v_margin*2 - title_font_size; working_increment = working_height / 7; // generally-useful spacing amount for vertical columns of stuff right_rib_thickness = 2; // plastic walls are 2mm clf_shaft_diameter = 6.3; // the first if(preg_match("@.*(

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