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Hardened steel nozzle and abrasive filaments  

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Chriffe
(@chriffe)
New Member
Hardened steel nozzle and abrasive filaments

I was looking at this interview that Thomas Sanladerer did with Josef Prusa about the Prusa Mini. At 12:15 in the video they talk about the hotend. Am I understanding it correctly that it should be possible to mount a hardened steel nozzle to it and print abrasive materials? I have got a hardened steel Micro Swiss E3D V5-V6 compatible nozzle that I am thinking of using.

Posted : 15/01/2020 9:47 am
Lichtjaeger
(@lichtjaeger)
Noble Member
RE: Hardened steel nozzle and abrasive filaments

I'm using a 0.25 Nozzle X without problems.

Posted : 15/01/2020 4:18 pm
Koen Kooi
(@koen-kooi)
Eminent Member
RE: Hardened steel nozzle and abrasive filaments

Same here, 0.25mm Nozzle X without issues.

Posted : 17/01/2020 10:36 am
Steve Smith
(@steve-smith)
Trusted Member
RE: Hardened steel nozzle and abrasive filaments

I was just about to search for Nozzle X compatibility, Glad I can use it with the Mini

My Mini has: A SuperPINDA + Bondtech Heatbreak + Bondtech Extruder installed

Posted : 26/02/2020 3:32 pm
bobstro
(@bobstro)
Illustrious Member
RE: Hardened steel nozzle and abrasive filaments

Just keep in mind that the Nozzle-X is essentially just a hardened steel nozzle with a coating and rated to higher than normal temps. It doesn't have the same thermal characteristics as brass. Great if you're printing at high temps (higher than you can on a Mini). If not, there are cheaper alternatives. Don't own a Mini myself yet, but I'd try P3-D's Apollo coated nozzles for non-abrasives, or Hercules for abrasives.

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 : 26/02/2020 4:52 pm
JoanTabb
(@joantabb)
Moderator
RE: Hardened steel nozzle and abrasive filaments

Please be aware that there are many abrasive filaments, 
those without particles incorporated in the filament (Say Glow in the Dark filament) will work with a 0.25mm nozzle... 
BUT those like Carbon Fibre re enforced filament, will clog in small nozzles... 
some folk have problems with carbon fibre filament in 0.4mm nozzles...   I got hardened 0.6mm nozzles for Carbon Fibre!
Typically hardened nozzles need slightly raised temperatures, compared to the same filament with Brass nozzles. 

I don't plan to switch between hardened and brass on a regular basis, unless I am also changing nozzle size. 

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

Posted : 26/02/2020 4:59 pm
Steve Smith
(@steve-smith)
Trusted Member
RE: Hardened steel nozzle and abrasive filaments
Posted by: @joantabb

Please be aware that there are many abrasive filaments, 
those without particles incorporated in the filament (Say Glow in the Dark filament) will work with a 0.25mm nozzle... 
BUT those like Carbon Fibre re enforced filament, will clog in small nozzles... 
some folk have problems with carbon fibre filament in 0.4mm nozzles...   I got hardened 0.6mm nozzles for Carbon Fibre!
Typically hardened nozzles need slightly raised temperatures, compared to the same filament with Brass nozzles. 

I don't plan to switch between hardened and brass on a regular basis, unless I am also changing nozzle size. 

 

regards Joan

Good Advice, I wasnt aware of this.. I will make sure I have different nozzles depending on what I intend on printing with.
I want to print with a mixture of filaments, I take it if you use something like a Palette 2 and mix filament types its better to go with the bigger nozzle to be on the safe side

My Mini has: A SuperPINDA + Bondtech Heatbreak + Bondtech Extruder installed

Posted : 26/02/2020 5:06 pm
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