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DaveGadgeteer
(@davegadgeteer)
Eminent Member
Slippery Nozzle needed

I find that printing PETG, my favorite material, is only possible by using the silicone socks. But they foul and tear eventually and ruin prints until they get replaced.

Surely there's a coating like silicone that could be permanently applied to nozzles to eliminate PETG sticking to them? Teflon? Has this been tried? I haven't found any for sale.

Posted : 19/12/2020 9:15 pm
bobstro
(@bobstro)
Illustrious Member
RE: Slippery Nozzle needed

E3D sells copper nozzles with a nickel non-stick coating. Their Nozzle-X series is also coated. P3-D sells nozzles with a non-stick plating. Similar offerings can be found from other manufacturers. They work well, but can't work miracles. You want to get your extrusion rate and Live-Z set correctly to minimize filament buildup on the nozzle.

Teflon degrades and starts emitting neurotoxins at temps in the typical 3D printing range. It is particularly dangerous for birds, but probably not healthy overall.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 19/12/2020 9:31 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Slippery Nozzle needed
Posted by: @davegadgeteer

I find that printing PETG, my favorite material, is only possible by using the silicone socks. But they foul and tear eventually and ruin prints until they get replaced.

Surely there's a coating like silicone that could be permanently applied to nozzles to eliminate PETG sticking to them? Teflon? Has this been tried? I haven't found any for sale.

E3D's Nozzle-X is widely used and has been reported to give good results with many materials. The nozzle is made of hard tool steel and coated with nickel / WS2-Nano:

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen....
Posted : 19/12/2020 9:33 pm
muddymaker
(@muddymaker)
Trusted Member
RE: Slippery Nozzle needed

I use a Nozzle-X on my MMU set up coupled with a silicon sock and it works well printing PETG. However, I run Ruby nozzles on my other machines with silicon socks and when I print PETG on those machines the stuff sticks like sh1t to a blanket.

Posted : 20/12/2020 8:57 am
cwbullet
(@cwbullet)
Illustrious Member
RE: Slippery Nozzle needed

Plastic Repellent Paint™ by SliceEngineering works well.  

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Chuck H
3D Printer Review Blog...
Posted : 21/12/2020 4:18 am
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