Print failure after one hour on UMS3

[Woezerd 0]

Hi there,

 

I’m experiencing multiple failures on my UMS3 since a few weeks now; I think my nozzle is clogging and the boden tube is pulled out of the feeder everytime…

I’m using a AA0.4 core and UM Tough PLA, just with the recommended settings…

this also happens with UM PetG and a AA 0.4 nozzle, again with the standard Cura settings…

Please advise, and help…

[RudydG 62]

6 hours ago, Woezerd said:

Hi there,

 

I’m experiencing multiple failures on my UMS3 since a few weeks now; I think my nozzle is clogging and the boden tube is pulled out of the feeder everytime…

I’m using a AA0.4 core and UM Tough PLA, just with the recommended settings…

this also happens with UM PetG and a AA 0.4 nozzle, again with the standard Cura settings…

Please advise, and help…

It can be a real "clog", but sometimes it can be the fan in front of the cores not working. Did you check that?

[Woezerd 0]

Hi RudydG,

 

thanks for answering, and I have checked the front fan; its working allwright…

I’ve unclogged the nozzle for a few times (hot ánd cold pull), but that also seems to have no impact.

just now I noticed that the tube is being pushed out of the feeder in the first layer🥴, with just the front fan working; maybe that’s the problem?

is the front fan cooling the filament down too much?

I’ve reduced the flow down to 97%, and even that is not working all the times; after a few minutes the tube is pushed out again…

 

printing with PetG, standard settings (fast) and the flow adjusted to 97%, there is no saying when it is going to stop again…