-$eltop = [topwidth/2, -tuberad + tubeheight + mainthick + 0.1];
-$elmid = [topwidth/2, -tuberad];
-$ellow = tangent_intersect_b([0,$hookcy], hookinrad, $elmid);
-$ellowextra = 180 - tangent_intersect_beta([0,$hookcy], hookinrad, $elmid);
+eltop = [topwidth/2, -tuberad + tubeheight + mainthick + 0.1];
+elmid = [topwidth/2, -tuberad];
+ellow = tangent_intersect_b([0,hookcy], hookinrad, elmid);
+ellowextra = 180 - tangent_intersect_beta([0,hookcy], hookinrad, elmid);