Any reason not to use a hardened nozzle for everyday filaments?
 
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Any reason not to use a hardened nozzle for everyday filaments?  

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Mchad65
(@mchad65)
Eminent Member
Any reason not to use a hardened nozzle for everyday filaments?

While I print PETG mostly, I want to be able to print carbon fiber or other “rough” filaments… occasionally. But I don’t want to have to change nozzles for the once a month print. Cost notwithstanding, is there anything wrong with installing a diamondback or Obxidion or another hardened nozzle, for use with “regular” PETG? 

Posted : 19/12/2025 1:28 am
hyiger
(@hyiger)
Noble Member
RE: Any reason not to use a hardened nozzle for everyday filaments?

Not at all. I only used hardened nozzles with any filament. I have 2 Obxidian HF and 3 Diamondbacks. 

Posted : 19/12/2025 1:35 am
2 people liked
FoxRun3D
(@foxrun3d)
Illustrious Member
RE: Any reason not to use a hardened nozzle for everyday filaments?

No issues. I have Obxidian on all my printers and print everything with them.

 

Formerly known on this forum as @fuchsr -- https://foxrun3d.com/

Posted : 19/12/2025 1:44 am
2 people liked
Mchad65
(@mchad65)
Eminent Member
Topic starter answered:
RE: Any reason not to use a hardened nozzle for everyday filaments?

Thanks, that’s what I was hoping to hear.

Posted : 19/12/2025 1:53 am
Mchad65
(@mchad65)
Eminent Member
Topic starter answered:
RE: Any reason not to use a hardened nozzle for everyday filaments?

 

Posted by: @hyiger

Not at all. I only used hardened nozzles with any filament. I have 2 Obxidian HF and 3 Diamondbacks. 

Which do you prefer? The obsidian’s or diamondbacks?

Posted : 19/12/2025 1:56 am
hyiger
(@hyiger)
Noble Member
RE: Any reason not to use a hardened nozzle for everyday filaments?

 

Posted by: @mchad65

 

Posted by: @hyiger

Not at all. I only used hardened nozzles with any filament. I have 2 Obxidian HF and 3 Diamondbacks. 

Which do you prefer? The obsidian’s or diamondbacks?

Depends on what I'm printing. If I'm printing an engineering filament or TPU I always use the diamondbacks.  Some of the materials I print need a nozzle temp of 280-290 and the diamondback has better thermal conductivity so I'll get better layer adhesion. I'll use the HF Obxidian for PLA and PETG. 

Posted : 19/12/2025 2:00 am
1 people liked
chmax
(@chmax)
Reputable Member
RE: Any reason not to use a hardened nozzle for everyday filaments?

I'm using the hardened high flow from Prusa and I have no issues with any material so far...

Posted : 19/12/2025 1:09 pm
1 people liked
Mchad65
(@mchad65)
Eminent Member
Topic starter answered:
RE: Any reason not to use a hardened nozzle for everyday filaments?

I just ordered both a Diamondback and a High Flow Obxidian 500 nozzle, both 0.4. Now since I'm a relative novice I realized In may be opening up a can of worms with regards to print settings, which to date I haven't really messed with. But if I use the Diamondback, which is not a HF nozzle - I expect I'll need to change some settings. The Obxidian 500 is HF, so maybe not there? Do these happen to come with recommended settings for a C1?  I couldn't find much on DB's and E3D's sites.

I realize these are idiotic noob questions, so I appreciate the patience while I learn... 

Posted : 19/12/2025 3:22 pm
hyiger
(@hyiger)
Noble Member
RE:

 

Posted by: @mchad65

I just ordered both a Diamondback and a High Flow Obxidian 500 nozzle, both 0.4. Now since I'm a relative novice I realized In may be opening up a can of worms with regards to print settings, which to date I haven't really messed with. But if I use the Diamondback, which is not a HF nozzle - I expect I'll need to change some settings. The Obxidian 500 is HF, so maybe not there? Do these happen to come with recommended settings for a C1?  I couldn't find much on DB's and E3D's sites.

I realize these are idiotic noob questions, so I appreciate the patience while I learn... 

PrusaSlicer has only 2 nozzle types: HF and non HF. There are no specific settings for the material composition of the nozzle. 

The Diamondback would simply be a non-HF nozzle. In most cases you can get away with the stock settings for the diamondback. This though depends on the type of filament. Diamond has a 20x higher thermal conductivity than brass so in some cases you may need to lower the nozzle temperature by 10-15C to get better results from a given material. Only way to know for sure is to run a temperature tower test. Another advantage though is because of this greater thermal conductivity high temperature engineering plastics such as PPA will give better later adhesion because they operate at the temperature limit of the nextruder which is 290C. You can also increase volumetric flow which will give you a faster print time versus a standard brass nozzle but it again depends on the type of material you are printing and it's best to run a calibration test for this. 

Short answer though is if you are using it for PLA or PETG (for example) you might need to lower the temp around 10° or more to prevent stringing. 

Posted : 19/12/2025 3:40 pm
1 people liked
LarGriff
(@largriff)
Reputable Member
RE:

I use Obxidian, but not HF, for pretty much everything.  When printing any filament with fibers, HF nozzles are more prone to clogging.  Standard nozzle profiles work fine with Obxidian.

This post was modified 3 weeks ago by LarGriff

MK4S/MMU3

Posted : 19/12/2025 4:19 pm
2 people liked
Mchad65
(@mchad65)
Eminent Member
Topic starter answered:
RE: Any reason not to use a hardened nozzle for everyday filaments?

Great, thanks. I guess I'm sitting through the Prusa Academy course on prusa slicer because I see no way to select HF vs Reg nozzles. I need the training anyway...

Posted by: @hyiger

 

Posted by: @mchad65

I just ordered both a Diamondback and a High Flow Obxidian 500 nozzle, both 0.4. Now since I'm a relative novice I realized In may be opening up a can of worms with regards to print settings, which to date I haven't really messed with. But if I use the Diamondback, which is not a HF nozzle - I expect I'll need to change some settings. The Obxidian 500 is HF, so maybe not there? Do these happen to come with recommended settings for a C1?  I couldn't find much on DB's and E3D's sites.

I realize these are idiotic noob questions, so I appreciate the patience while I learn... 

PrusaSlicer has only 2 nozzle types: HF and non HF. There are no specific settings for the material composition of the nozzle. 

The Diamondback would simply be a non-HF nozzle. In most cases you can get away with the stock settings for the diamondback. This though depends on the type of filament. Diamond has a 20x higher thermal conductivity than brass so in some cases you may need to lower the nozzle temperature by 10-15C to get better results from a given material. Only way to know for sure is to run a temperature tower test. Another advantage though is because of this greater thermal conductivity high temperature engineering plastics such as PPA will give better later adhesion because they operate at the temperature limit of the nextruder which is 290C. You can also increase volumetric flow which will give you a faster print time versus a standard brass nozzle but it again depends on the type of material you are printing and it's best to run a calibration test for this. 

Short answer though is if you are using it for PLA or PETG (for example) you might need to lower the temp around 10° or more to prevent stringing. 

 

Posted : 19/12/2025 4:21 pm
hyiger
(@hyiger)
Noble Member
RE: Any reason not to use a hardened nozzle for everyday filaments?

You select the nozzle types when installing the printer. So go to the configuration assistant and select the nozzles you have:

 

Posted by: @mchad65

Great, thanks. I guess I'm sitting through the Prusa Academy course on prusa slicer because I see no way to select HF vs Reg nozzles. I need the training anyway...

Posted : 19/12/2025 4:31 pm
1 people liked
Mchad65
(@mchad65)
Eminent Member
Topic starter answered:
RE: Any reason not to use a hardened nozzle for everyday filaments?

Ok thanks again. Found it. I was looking for a setting in the UI. Not realizing i needed to use the config wizard for it. 

Posted : 19/12/2025 5:04 pm
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