Bolted-On Extrusion Filament Holder

This is yet another filament holder, but one meant to be bolted onto 20x20 extrusion or the 20mm side of 20x40 extrusion. It's very similar to my TEVO Tornado / 20x20 filament holder that clicks into place instead of using a bolt: (https://www.thingiverse.com/thing:3178835)

For this filament holder, print with it placed on it's back with supports at a 15 degree overhand threshold and with a 1cm brim for best results. I also included a test piece to see if the filament holder will fit on yo