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Unable to print shortly after adding enclosure  

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federcor
(@federcor)
Utenti
Unable to print shortly after adding enclosure

Hi there.  I've scoured the forums, youtube and any other sources i could find and I'm still stuck.  My mks3+ is fairly new.  I've successfully printed a number of great prints including multiple 17 hour prints without trouble.  I recently purchased the prusa enclosure and since then started having problems.  the same 17 hour print kept having false crash detections which i would just have to hit continue to finish the print without a problem (i have the fan to install on the board that i read about in the forums but haven't installed yet).  This led to what appeared to be a clog nozzle which is why i thought i was getting filament grinding.  I replaced the nozzle and heatsink thread to be safe as even after cleaning original it appeared to clog.  Unfortunately I ended up with the same issue and have followed guides to adjust the extruder tension.  I even increased the nozzle temp (for both troubleshooting having the enclosure and the potential filament jams) and tried faster / slower print speed.  I thought I had it all tweaked right...printing a 10 hour print and beginning of the first layer looks amazing and then eventually no filament coming out.  Same filament used for the 17 hour prints mentioned above (an articulated dragon).  Spool is not jammed or knotted.  I'm a bit frustrated and at a loss.  Arguably I'm still a noob at this but believe I've tried most of what i could find so asking for help if anyone has any more ideas for me to try.  thanks in advance.

Best Answer by JoanTabb:

Are these PLA Prints? 

If PLA is printed in an enclosure, the temperature inside the enclosure is likely to rise. which can result in Heat creep in the extruder, where the 'Cold End' of the extruder is not cold enough to prevent the filament softening prematurely, and the filament expands and jams above the heatbreak. 

Try printing with the enclosure door open. 

regards Joan

Postato : 08/05/2023 12:50 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Unable to print shortly after adding enclosure

Are these PLA Prints? 

If PLA is printed in an enclosure, the temperature inside the enclosure is likely to rise. which can result in Heat creep in the extruder, where the 'Cold End' of the extruder is not cold enough to prevent the filament softening prematurely, and the filament expands and jams above the heatbreak. 

Try printing with the enclosure door open. 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Postato : 08/05/2023 7:32 am
federcor
(@federcor)
Utenti
Topic starter answered:
RE: Unable to print shortly after adding enclosure

Thanks Joan! It is PLA.  I'll give that a go.

Postato : 08/05/2023 2:05 pm
federcor
(@federcor)
Utenti
Topic starter answered:
RE: Unable to print shortly after adding enclosure

Joan. Thank you again.  That solved the problem.  30 mins on a 10 hour print and looks good!  Truly appreciated.

Postato : 08/05/2023 11:57 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Unable to print shortly after adding enclosure

i have the same issue if my solid fuel fire, gets the room  too hot...

 

Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Postato : 09/05/2023 5:45 am
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