Replicator 2 Filament Feed Funnel

thingiverse

Here are a few potential funnel designs you could try using in place of the guide tube: One design I like uses a small container that's positioned under your Replicator 2 to catch any loose filament and prevent it from breaking. This keeps the filament from moving around too much during printing. If you want to get really fancy, you can even create an enclosure for your printer using something like cardboard or a small plastic box to give it more protection. I have also made the file needed for making the funnel with Inventor 2014, in case that is of use.