OpenSCAD Fillet Angle Module/Library

thingiverse

This module accepts three points and a radius value, then draws an arc of the supplied radius at the middle point as a polygon. It can't determine which side of the angle should be filled, so it assumes you're supplying the points in a clockwise manner. There's also a fifth parameter for specifying the number of segments to use when drawing the arc. This module relies on my 2dWedge module as a dependency - make sure you download all the files listed on this page.