Spool Holder for Nova Labs Prusa i3

While I like my existing spool holder, I got tired of reaching behind my printer to grab the spool holder (seen in the background), unscrew it, load a spool onto it, screw it back together and replace it. So, I designed this top-mount spool holder for my Nova Labs Prusa i3 (BG8). I believe it should fit all versions of the printer (BG6 - BGIX) done to date. The spool sits up high enough it won't interfere with prints and allows for quick changes of filament since it's only held in by gravity.