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Major print head clog

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We left a print running overnight and had a slight issue when we came in the next day.  From the pics you can see that the head has totally clogged up and done quite a bit of damage to the whole assembly.  Any tips on how (or if) it is salvageable and how to make sure it doesn't happen again.



Print head 1.jpg

Print head 2.jpg

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This really sucks when it happens.  It's called  "head flood".  There are other discussions elsewhere.  Basically heat up the left core to 200C and the right core to 100C and use a heat gun or hair dryer and remove that slowly.  It will take a few hours.


This happens when your part is wider than it is tall and then it comes loose from the glass bed and gets dragged around like a hockey puck but won't fall over (because it is wider than tall).


The solution is to get your parts to stick better.  This is a complicated subject so I made a video.  The thing people get wrong the most is squishing the filament more onto the glass but glass preparation is also very important.


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6 hours ago, AlexJ said:

That's great info, thanks very much.


Dont do that. First call reseller. Cleaning it yourself might or not break warranty. 


Much discussed about that 




UM doesn’t like that user fiddle with the hardware like on previous machines. So, call reseller first. 

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