This is a very simple PTFE/Bowden guide to straighten the filament path into the filament buffer eliminating the “Pull Back” error.

I expericence the AMS “Pull Back” error many times and see that people were designing parts to fix this but they all use quite a bit of filament and take a little while to print. So I designed my own which is very simple and minimalistic and it has worked great for me. No more “Pull Back" errors.

Does not require support and prints in under 14 minutes

It screws into the back of the printer via an existing hole. You will need an M3 x 10mm bolt for this.

Thats it, it's as simple as that. I hope it works well for you too.