ive recently built new enclosures for all my printers an a couple of them ended up being pretty tight between the top of my delta printers an the top of the enclosures, the tops are on hinges an i can lift them but that doesnt really help with loading the filament with the way everything is setup so i made this like thing to go in the top of the enclosures an the ptfe tube runs all the way to the extruder so i dont even have to lift the top to load filament but i mainly did it so the hole i drilled didnt have to be perfectly lined up with the ptfe tube on my extruder, this lets me put the single tube into the extruder then through the ball joint an out the top of the enclosure an with the extra slack on the tube i can lift the top without having to unhook it from the printer it. i hope someone else can find a good use for it, if i hadn't come up with this i would have probably ended up pulling the printer out of that enclosure just cause it was a head ache every time i needed to change filament. any suggestions to improve it even if only for your self let me know an i'll see if i can help out.