Horizontal Spool Filament Twister (Parametric, Fully Printable)

thingiverse

This was an attempt to make a fully printable spool holder with no moving parts, but it seems to have one large flaw. Every time one loop of filament comes off the side it adds a twist. After some time (maybe 30min printing) the twists make a big tangle stopping the print. So far I don't really have any idea how to fix it, but I'll leave the design here in case someone wants it for short prints or something. This is a horizontal spool holder that requires no moving parts and is fully 3d printable. So far it has only been tested with a PLA roll, but is seems to be working fine. The filament is quite easy to pull off the spool sideways so I think this should be no problem for any extruder. I would recommend making the screw as tall as your printer will allow since the filament seems to move more smoothly the higher the filament guide stands. If you want to move it lower this is easily done after the fact by screwing the nuts further down. To lock the filament guide in place simply screw the lower nut upwards and the upper nut downwards squeezing the filament guide in between. Also, thanks to NUT JOB for his great parametric nuts and bolts library: https://www.thingiverse.com/thing:193647