Filament coming out from screw

Hi everyone, after a lot if trys I fainlly made my Anet A8 prints, there is only one more problem.

 

When im printing, the filaments (the plastic) start to squirt from the upside, where the nut is, squirt slowly but after some time it begins to accumulate in the nozzle (outside it) and in some point it touch the model and all become a mess.

 

I can pause the printing, clean that plastic and then continue printing, but that is viable only for small models, i cant be cleaning every 15 minutes in a 10 hours printing.

 

I tried lowering the tempaerature (currently 190) to 180 but is wasnt hot enough to stick filament to hotbed. I tried moving the nut bot didnt work.

 

Have somebody had this issue?

+1
0
-1

The nozzle should be screwed very tight agasinst throat. Any room will lead to leak. I apply plumber’s Teflon tape, and it helps

+1
0
-1

If the Filament comes Out in the Heatblock then the nozzle and Heatbreak are not pushed against each other enough or the PTFE Tube inside of the Heatbreak is so short.

+1
0
-1

That's it. I mount the extruder. Heat it to 190 and then tight it very hard. Mount it back and you won't loose more filament from the block.

+1
0
-1

That's it. I unmount the extruder. Heat it to 190 and then tight it very hard. Mount it back and you won't loose more filament from the block.

Not the answer you’re looking for? Ask a new question to 485 ANET 3D experts active on Talk.

The 3D Printing Handbook is available now

If you’re a professional looking to master the key aspects of 3D printing, this book is for you.

The 3D printing handbook