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BackR=cord-cdp*smt/100, $fn=2*cfn, center=false); shape(fsh, cird, cord-cdp*smt/100, cfn*4, chg); knurled_finish(cord, cird, clf, csh, cfn, crn); else if (two_holes_type == "mirror") { module label(string, size=4, halign="center", font=default_label_font) { color([1,0,0]) linear_extrude(thickness+1) text(string, size, halign=halign, font=font); // draw a horizontal cylinder around the top rotate_extrude(convexity=10, $fn = stem_faces); // Widening part at the first if (preg_match("@.*(