Nozzle encased in PLA
Hi guys,
One of my colleges has royally messed up our MK3 printer (that we only got last week) and managed to encase the nozzle in PLA....
Only reason I can figure out why it happened is he didn't brim the part and therefore part got stuck to the hot end and then it kept extruding around it. Luckily he caught it before it got too bad (PINDA probe is safe).
I've annoyingly had to disassemble the extruder so I can get to it and plan to use a hot air gun to try and get it all off. Is this safe and has anyone else had this problem?
Luckily this is the second printer I've put together so I'm OK to put it back but still, bit off a ball ache...
Simon
Re: Nozzle encased in PLA
Extruder blob from the Prusa website
https://www.prusaprinters.org/how-to-fix-the-most-common-3d-printing-errors/
[youtube] [/youtube]
Extruder blob is one of the worst printing problems you might face with your 3D printer. Unlike the spaghetti monster, this issue occurs earlier in the process, usually during the initial 5 minutes of the print. The first layer becomes detached and covers the nozzle, while the extruder keeps extruding and the blob grows and grows, leaving you with a non-working printer.
Don’t worry, it is really easy to prevent this situation from happening. However, it is quite tricky to clear it after it happens. Just to make it a bit easier for you, we have prepared a short video where we show you how to remove it.
How to prevent extruder blob from happening:
Check the first layer – Since an improper first layer is the source of extruder blob in most of the cases, make 100% sure that the first layer is sticking properly to the entire print surface. You can refer to the “First layer not sticking” above.
Monitor the print for 5–10 minutes – Let the printer run for 10 minutes and check the progress. We recommend doing this every time. If you observe any issues, restart the print. If everything seems running okay, then you can just let your printer finish the job. After the initial 10 minutes, it is unlikely your printer would create an extruder blob.
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