Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4440886.

I had a few prints in a row get kinked and knotted up at the extruder (Image 3). After watching for a while, I saw alot of filament play between the gear and Bowden tube entrance while completing quick retractions.

I designed a little support piece that threads upto the coupler. While adding support, It also makes it easier to swap filament.

Printed M6 Threads at 0.08 mm layer height.

• 5 mm threaded length

• 5 mm OD.

• 3 mm ID

• 10 mm total length

• I would print a few at once, allowing them to cool properly.

• I would recommend randomizing you Z-seam. With such a small part, Z-seam on one side might have cooling issues.

• Need to disassemble your extruder to thread it in.

• If you require a shorter or longer version, comment, its a simple edit/upload.