custom_extrude for openscad

thingiverse

Module polygon_custom_extrude(points, height, layer=1)\nFor a non-linear extrusion of polygons.\nExample functions for scaling and rotating in polygon_custom_extrude:\nFunction fscale(z) = 1+0.5sin(180*z);\n// Function fscale(z) = 2*(1-pow(z,2));\nFunction ftwist(z) = sin(180*3*z)*30*z;\n// Function ftwist(z) = 60*z;\n// Function ftwist(z) = 0;