Glob of filament around nozzle

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sarge74
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3D Printer(s): FLSUN and a Form 2

Glob of filament around nozzle

Post by sarge74 » August 7th, 2019, 8:12 am

New to Filament printing (started with a Form2 resin printer three yrs ago) and have only printed a few D&D tiles so far. Came in this morning and found this lovely mess of hardened filament around the printer head/nozzle of my FLSUN delta. (see attached) What in the hell happened and how do I get this stuff off now that its hard? The filament also snapped off at the real above too. Not sure if that has something to do with it. Would appreciate any help you veterans can give. Thank so much for your time and effort.
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GrueMaster
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Re: Glob of filament around nozzle

Post by GrueMaster » August 7th, 2019, 10:06 am

We've all been there before.
20170917_073151.jpg
The easiest way to remove it is to use a heat gun (like an industrial strength hair dryer). Don't set the heat too high though as you could melt the insulation around the wires. If you don't have one, turn on the extruder heat to PLA level (~210C) and let it warm up.

Once heated, you should be able to work it off.

sarge74
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Re: Glob of filament around nozzle

Post by sarge74 » August 7th, 2019, 12:15 pm

Thank you for your helpful reply. Any idea how to prevent this or how its caused?

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Roberts_Clif
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Re: Glob of filament around nozzle

Post by Roberts_Clif » August 7th, 2019, 12:32 pm

To prevent this from happening would require getting a good first layer adhesion.

As @gruemaster mentioned we have all experienced this beginner and advanced 3D Printer users alike.

In your case you are probably lucky that the filament broke or you may have had a much larger glob of filament.
It could be possible your nozzle is too close to the bed surface and the filament is rolling up on to the nozzle.
Last edited by Roberts_Clif on August 7th, 2019, 12:38 pm, edited 5 times in total.
Electronics Technician / Computer Programmer

sarge74
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Re: Glob of filament around nozzle

Post by sarge74 » August 7th, 2019, 12:36 pm

Thank you for your help. Bed adhesion was an issue I believe form the AC in the room the printer is in was making the room temp too low causing warping of the first layers on my last print.

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Roberts_Clif
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Re: Glob of filament around nozzle

Post by Roberts_Clif » August 7th, 2019, 12:40 pm

Could also be that the Z-Axis skipped a step or two and broke the model loose it melted around the nozzle.

I print smaller models with a skirt/brim to keep them attached to the bed.
Electronics Technician / Computer Programmer

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