This is a very simple PTFE/Bowden guide to straighten the filament path out of 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.

Works with the 90° angled bus cable and has a small cutout to allow you to access the tab so you can press it to unplug it.

Does not affect the use of the original back spool holder like some of them do. It can still be used with this clip in place.

Prints in under 13 minutes

Requires very minimal supports which can be a little fiddly to remove but worth it to achive a circular hole.

It just pushes over the cable end before it is plugged into the printer. The PTFE tube can then be fed thought the hole.

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