Geeetech MK8 Extruder Filament guide

Having problems printing flex filament? Struggling to load filament into your extruder?

Here is your solution.

Place this in your extruder after the gears and before the hot end.

Flex filament now has no place to go other than through to the hot end.

I don't take credit for this, as I saw an image of it when I was having problems with flex filament coming out the side of the extruder.