[Updated: 5 Aug 2025 Bambu Lab are predicting stock back in towards the end of August.]
In June 2025 Bambu Lab were out of stock of their PETG-HF (High Flow) filament, worldwide. Because of that, I was forced to try other makes. I should point out, that apart from the odd specialist filament, like TPU, I now almost exclusively print using PETG. I mainly print functional parts and they are often for use inside cars, where the heat resistance of PETG is needed to avoid warping.
As mentioned in an earlier article, I wanted to be able to use an alternative filament as a direct replacement for the Bambu Labs version, without the need to change any settings on my Bambu Lab H2D.
I'll start with the benchmark, the Bambu Labs filament:
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Bambu Lab PETG-HF
- Print settings: Automatic defaults.
- Colours tested: Black, Grey, Red and Yellow.
- Print Result: Good. Negligible stringing, few blobs, tidy seams.
- Surface: Satin to matt.
- Spool AMS compatibility: Good (OD 200mm, ID 55mm, Width 67mm)
- Number of kg spools used: >10.
- Print fails: None.
- Eco: Very good, uses refills.
- Cost: ££££
Filament Choices
The main criteria for selecting the following filaments have been the cost at any point in time, and that they get substantially good reviews on Amazon.
If a spool is on special offer, I have taken advantage of that, as my next filament to try.
These are in the order I tried them:
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Sunlu Rapid PETG
- Print settings: Same as Bambu Lab PETG-HF.
- Colours tested: Black.
- Print Result: Usually good. Negligible stringing, few blobs. Developed very untidy seams before the nozzle clogged.
- Surface: Satin to matt.
- Spool AMS compatibility: Good. (OD 195mm, ID 63mm, Width 59mm)
- Number of kg spools used: 6.
- Print fails: 1x clogged nozzle.
- Eco: Poor. Reusable plastic spool but no refills available.
- Cost: ££
Tinmorry Rapid PETG-eco
- Print settings: Same as Bambu Lab PETG-HF.
- Colours tested: Black and Light Grey (too pale).
- Print Result: Usually good. No stringing, few blobs. Usually tidy seams but one spool of light grey was a little ragged.
- Surface: Satin to gloss.
- Spool AMS compatibility: Good (OD 197mm, ID 53mm, Width 56mm)
- Number of kg spools used: >10.
- Print fails: 1x clogged nozzle.
- Eco: Poor. Disposable plastic spool.
- Cost: ££
Eryone Hyper Speed PETG
- Print settings: Same as Bambu Lab PETG-HF.
- Colours tested: Black and Grey (too dark).
- Print Result: Very Good. No stringing, no blobs, tidy seams.
- Surface: Gloss.
- Spool AMS compatibility: Cardboard spool, not recommended. I use a simple workaround.
- Number of kg spools used: 3.
- Print fails: None.
- Eco: Good. Cardboard spool.
- Cost: ££
Subjective Views
The results above are my opinions after a relatively limited number of hours printing with each filament. This is not an organised review or test, this is just a reminder to myself of how well filaments have performed for me.
I have printed everything at Bambu Labs defaults for speed and temperature. I have not attempted to establish the fastest speed a filament can print at. I want to be able to print reliably, repeatably and with minimal tinkering.
My only changes have been to affect the strength appropriate to the component I am printing. Things like wall thicknesses and infill densities.
AMS Compatibility
Being easy to use in the Bambu Lab AMS 2 Pro and AMS HT is important for me. In my results above, I am referring to those two AMS's. I have no access to any other AMS's to try them with.
Cardboard Spools
Conclusion
All the filaments that I have tried, so far, are good and can be used as direct alternatives to Bambu Lab PETG-HF.
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This page is updated from time to time when I try new filament.
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