scruss

module chamfer_extrude(height = 2, angle = 10, center = false) {
    /*
       chamfer_extrude - OpenSCAD operator module to approximate
        chamfered/tapered extrusion of a 2D path
    
       (C) 2019-02, Stewart Russell (scruss) - CC-BY-SA
    
       NOTE: generates _lots_ of facets, as many as
    
            6 * path_points + 4 * $fn - 4