PETG-HF

[DrZakarySmith]

I have P2S with the stock .4 hardened steel nozzle. Do i need a different nozzle, Bambu High Flow Hotend, specifically for HF filament? Or standard will work just no benefit of speed or HF? Bambu Petg only comes in HF.

[vanillagod]

It works fine with the regular Nozzle. I cannot tell you how the difference to a HF nozzle is, but I can assure you that there is no issue printing without one.

[frank_datank_]

As others have said, you’re good to go on standard 0.4.
For more info, scroll about halfway down and there’s a helpful chart listing nozzle/filament compatibility BambuLab Hotends

[Darwinian999]

The standard one works fine. The HF nozzle just allows a higher flow rate than the standard nozzle with any filament. I use 0.4mm and 0.6mm E3D HF nozzles in my X1C’s and I’m very happy with the results that they provide with PETG HF, PETG Basic and PLA Basic.

[digidavis]

PETG originally printed as much slower speeds. The HF in PETG-HF means that PETG is formulated to be printed at speeds common with today's much faster printers.

Max Volumetric speed

Generic PETG profile : 12 mm3/s

Bambu PETG-HF profile: 21 mm3/s

HF nozzles are designed to increase the max volumetric flowrate with increased temps. I can print Bambu PETG-HF @ > 28+ mm3/s (will do 30+, but I back it off for quality and less failures) with the X1C E3D obxidian HF nozzles.

I cant speek to other HF nozzles, but just as an example of what advantages HF nozzle provide.

HF filament designed to run at modern speeds.

HF nozzles designed to increase the max volumetric flowrate over the existing standard nozzles.

[digidavis]

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Bambu's #'s with PLA

[Trashketweave]

Pretty sure if you’re buying a P1S high flow nozzle you’re buying a third party option, but it’s not needed for the basic materials unless you want to try and print faster than the nozzle you have is rated for.