[Lab] Stinky hot ends

Andrew Plumb andrew at plumb.org
Thu Mar 6 09:53:22 EST 2014

Yes, I've found this to be normal for completely new components. There are often greases, oils and other volatiles used in the manufacturing and assembly process that take time to work thru and burn out of the extrusion path.

For nozzles, keep an eye open for clogs. Sometimes it's non-thermal plastic "fuzz" that bungs things up. Other times it's little pieces of metal left over from machining them.


Sent from my iPhone

> On Mar 6, 2014, at 9:38 AM, "Stephen Burke" <steve at envirolaser.com> wrote:
> A friend of mine just installed some new hot ends on his 3D Touch printers.
> After installation, and when he turned it on, he noticed a foul stench arising from the hot ends.  He said they really stink.
> He mentioned that there is some potting compound on the hot ends and thinks that they may not have gone through a bake-out procedure.
> Does anyone know if it is “not unusual” for a hot end to stink, and if so, how long does it take for the smell to go away.
> Thanks for any assistance.
> Stephen Burke
> 3D Artist
> www.3DArtwork.ca
> 613-619-1013 cell
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