add knot

examples/knot.scad

@@ -0,0 +1,21 @@
+include <shape_pentagram.scad>;
+include <rotate_p.scad>;
+include <polysections.scad>;
+include <path_extrude.scad>;
+include <torus_knot.scad>;
+
+p = 2;
+q = 3;
+phi_step = 0.05;
+star_radius = 0.5;
+
+pts = torus_knot(p, q, phi_step);
+
+shape_pentagram_pts = shape_pentagram(star_radius);
+
+path_extrude(
+    shape_pentagram_pts, 
+    concat(pts, [pts[0]]), 
+    closed = true,
+    method = "EULER_ANGLE"
+);