Printer stopped extruding mid print

[jetengineering 1]

Hi all, 

 

Firstly thanks for helping, my printer has just stopped work mid print. 

 

I've just completed 4 days of back to back prints and it's stopped on the last part. 

 

The material is PETG. 

 

I've tried heating the nozzle up and moving the filament but nothing will extrude. 

 

The extruder had a large lump on it when it failed mid print. I've removed this carefully. 

 

Thanks for any thoughts on why it's still not printing! 

 

James 

[jetengineering 1]

Issue found, the material had come off the spool tied a knot and then was still moving in the tube until the point the material had worn thin. 

 

 

[SandervG 1,519]

Thanks for the update! If I understand it correctly the filament that's going into the feeder ran underneath another part of the material on the same spool, creating some kind of knot and getting stuck? Usually this happens (luckily not often), when the spool gets unpacked and loaded on the Ultimaker, and the tip of the spool manages to escape and the spool unwinds for a few meters. Try to hold on to the tip, or secure it in a way so it doesn't happen and you should reduce the chances of this happening again. Good luck!