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Phil
 Phil
(@phil-15)
Trusted Member
PET-CF config

I bought a spool of Siraya Tech PET-CF. On my Core One there isn’t a PET choice when loading filament. What do I do?

Prusa Core One

Posted : 14/06/2026 6:01 pm
hyiger
(@hyiger)
Famed Member
RE:

You create one. I'm not in front of my printer right now but you can go to the filament user presets screen on the printer and simply add it. I can give you exact instructions later. 

What nozzle do you plan to use with it? My advice is to use a hardened 0.6mm and not high flow. 

Let me know and I'll attach a calibrated profile for it. Just be aware that PET-CF is at the upper limit of what can be successfully printed on the Core One. Meaning you'll need to run the nozzle at 290° but PET-CF likes 300 or 310

This post was modified 9 hours ago 3 times by hyiger
Posted : 14/06/2026 6:48 pm
Phil
 Phil
(@phil-15)
Trusted Member
Topic starter answered:
RE: PET-CF config

I have a 0.6mm hardened nozzle (not HF) that I can use. 

Prusa Core One

Posted : 14/06/2026 7:57 pm
hyiger
(@hyiger)
Famed Member
RE:

@phil-15

Filament -> Manage Filaments -> Edit Filaments -> (scroll until you see @User1) -> 

  • Name: PET-CF
  • Visible: On
  • Nozzle Temperature: 290
  • Nozzle Preheat Temperature: 170
  • Bed Temperature: 70
  • Nominal Chamber Temperature: None
  • Minimum Chamber Temperature: None
  • Maximum Chamber Temperature: 55
  • Is Abasive: On
  • Auto Retract: On
  • Requires Filtration: Off
This post was modified 7 hours ago 3 times by hyiger
Posted : 14/06/2026 8:01 pm
hyiger
(@hyiger)
Famed Member
RE:

 

Posted by: @phil-15

I have a 0.6mm hardened nozzle (not HF) that I can use. 

I'll send you a profile shortly. I haven't actually printed this filament on a Core One, I use my H2D for that. I have printed Fiberon PET-GF on a Core One which has a lower temperature requirement.

Just be aware that on a Core One with a 290° limit, you are at the lower end of the temperature range so there might be layer adhesion issues. Also, this filament is very brittle. 

This post was modified 7 hours ago by hyiger
Posted : 14/06/2026 8:23 pm
hyiger
(@hyiger)
Famed Member
RE: PET-CF config

@phil-15 

Try this one. You might need to lower the max volumetric flow slightly since this is calibrated for a 0.6mm Diamondback nozzle. 

 

Posted : 14/06/2026 11:07 pm
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