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Mr_Blaze

Ender 3 extruder (flex filament)

by Mr_Blaze Dec 29, 2018
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This was great for using TPU on my Ender 3 but when I went back to PLA, I had a lot of under extrusion on the left side of the build plate. When I removed the part and ran some filament through, it would get stuck if the filament on the bowden end was curled at a 90 degree angle (as a bowden tube might do when bunching up right next to the extruder).

This thing is brilliant. post printing, had to clear out the filament path a bit, but now so much easier to load filament (i used to shudder at the thought of doing it, but this, you put the filament in a short way, then use the wheel (i printed one) on the top and the filament goes smoothly in. Must have for TPU. Well done Mr Blaze, and thank you.

I have to use a Dremel tool to make it fit perfectly.

Unfortunately, there is no thread and the connection point is slightly cracked.

It's okay for a transitional solution.

Works great with TPU! A thread would be nice, but it works anyway ... just screw the tube coupling slowly and straight into it.

How do you screw the coupling into it. Do you have to create the thread after it has been printed?

The hole is perfect size. Even tho there is no thread, i just screw it in like there is one :D. 50+ prints with multiple materials and it's still intact.