PLA filment will not be pushed through the AA 0.4 core anymore S5

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Hi all,

 

Yesterday a printjob broke down because the PLA wire broke while printing.  A little piece of PLA was stuck  in the shaft of the AA 0.4 printcore.  I did not succeed in pushing the piece of PLA through the printcore. I tried the core clean options, the hot pull and cold pull. It did not work.

   

We had to continue printing so I placed a new AA 0.4 printcore. After placing the new core I reloaded  the PLA wire and it did not want to be pushed through the new clean AA 0.4 printcore. It lookt like the printcore was not getting hot engough but the S5 did not gave an error or something. I tried normal PLA and tough PLA. It dit not get trought the printcore. After a view tries of reloading diferent rolls of PLA I pudated the firmware. It didn't help. Resetting the S5 to factory settings, It didn't help.

 

I tried to switch the BB0.4 printcore fot the  AA 0.4 printcore in to the printcore 2 of the S5, so the PLA would be pushed through the other feeder. Reloaded and again it wouldn't get through the AA0.4 printcore. So I don't know what the problem is.  

 

I don't know what to do anymore, in one day I have two AA 0.4 printcores who do not work anymore. I can't continue printing. I looks like the printcore is not getting hot enough but agian, no error on the S5. Is anyone familiar white this problem? Does anyone have a solution beside buying new AA 0.4 printcores?

 

We are making great things with the S5 and sometimes prints fail but it is an awesome 3D printer to work with. It is a weird problem.  I uloaded two movies as a zip file and two pictures. One picutere of the first AA 0.4 core withe the piece of PLA in the shaft and one picture of the PLA wire that I tried to push through the printcore but did not come through. 

 

I hope someone can help me. 

 

Thanks in advace,

Thijs Vreeken 
Ooijevaar | bevlogen bouwers 
 

UMS5.zip

IMG_2841.zip