surf_extrude: linear extrusion of 3d surfaces in OpenSCAD

thingiverse

surf_extrude enables rapid creation of a surface given in the form: f(x,y)=z and defined over a matrix of x,y points. It skillfully constructs the mesh and polyhedron with minimal user effort required. The extrusion length and direction are dictated by a vector, with the default [0,0,1] resulting in a 1 mm extrusion in the z direction. I am confident that numerous implementations exist elsewhere, but I found none as simple and swift to my liking, so I developed it myself. Example usage: surf = [[for (x=linspace(0,40,100)) [for (y=linspace(0,20,100)) [ x, y, sqrt(x)+sqrt(y)+2*cos(x*40+200*cos(y*20)) ] ]]; surf_extrude(surf, direction=[0,0,1]);