$fn=$preview ? 60 : 360;
include <../Lib/bearings.scad>;
include <../Lib/mirrorcopy.scad>;
include <../Lib/extrusion.scad>;
include <../Lib/pcd.scad>;
include <../Lib/metric_bolts.scad>;
include <../Lib/corner_radiuser.scad>;
include <../Lib/hexgrid.scad>;