Use these 3d printable endcaps to cover sharp ends of extrusion, or even just add some accent colors to your build. Split prong design provides a snug fit by allowing for some flexing.
Cutout versions are designed for routing wires along slots, great with plastic slot covers.
STL files provided in .ZIP
Links to individual models on autodesk 360(can export to various other formats using these links):
20x20 Unsupported Browser ~ A360
20x20 with cutout Unsupported Browser ~ A360
20x40 Unsupported Browser ~ A360
20x40 with cutout Unsupported Browser ~ A360
20x60 with cutout http://a360.co/1KNGdHZ
20x80 with cutout http://a360.co/1KNGgn3