Printing problems

[nicozanjani 0]

Hello,

 

I am currently having problems with my printer. It starts to print well but after a good 10 minutes the print head isn't extruding any material. You can see the problem in the picture. A gear wheel is shown. The outer edges work, the inside also starts well, but suddenly it doesn't pull any more filament.
What I've already tried:
- Temperatures of printing plate print head changed
- Recalibrated
- Mechanics cleaned and checked for functionality
- Software updates
- Printhead changed
- Replaced filamend

 

Hope you can help me.

 

Nico

[nicozanjani 0]

UM3 Ext

[waintdeir 0]

Is the printed inside getting thinner or is it all the same thicknes as the outer edges? --> Is the nozzle touching (or almost touching) the build plate as the plate is getting warmer and possibly bending/warping upwards?

You can try to calibrate the printer after turning on the heated bed for at least 15 minutes...

[nicozanjani 0]

After 10-15 minutes, the layers become thinner and thinner until no more material flows. I've calibrated the printer several times, unfortunately without success.

[nicozanjani 0]

and yes, the filament detaches from the print bed in some places.

[waintdeir 0]

Have you modified anything prior to this? Updated Firmware? Updated Slicer Version? Any small change?
Is the Extruder still turning? Is the Motor getting too hot?

 

Sry, i just have too many ideas, as i am not that good at fixing your issue remotely - and i have only one Printer and is that rarely making problems.

The only Problem I had was a cheap filament that was suddenly only 1.2mm in diameter over a few cm instead of the normal 1.75mm - but this made me aware of the extruder tentioning-screw (i just tighten the extruder a bit more for this cheap TPU).