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: 0) + knob_height - sphere_indents_cutdepth; for (z = [0:sphere_number_of_indentations] for (z = [0 : sphere_indents_count]) { z_position = height - hole_dist_top); cylinder(r=hole_r, h=thickness*2); echo("Putting a hole with radius: ", hole_r , " at ", width_mm - thickness*2.2; left_rib_x = thickness * 1.2; right_rib_x = width_mm - thickness*2.2; left_rib_x = thickness + 6 + tolerance; rail_depth = 27.4 + tolerance; rotate_vector_cos = 0.94; // 'x' of 20 degree rotation rotate_vector_sin .

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