4mm bowden tube end holder

thingiverse

I've got the filament spool rolling on top of my delta printer and my extruder is mounted way lower than one tower. That means I need to use a secondary bowden to guide the filament from the spool all the way to the extruder. I built this thing to hold the end of the secondary bowden tube at the vertical top profile where it's mounted. This is designed so that you push the bowden tube all through the hole, which isn't a straight shot - it's got 0.2mm of curve to help grip the tube better. It might be a tight squeeze, so use a 4mm drill bit at both ends if you're having trouble getting the tube through. If that doesn't work, try drilling the whole thing with the 4mm drill bit and see if it holds up. Use M4x8mm screws to mount it to your 2020 profile.