PETG HF Print Settings
Expert-recommended PETG HF (PETG) settings for all Bambu Lab printers
Why use PETG HF?
- High-flow formulation allows faster printing than standard PETG
- Excellent chemical resistance — safe for outdoor use
- Better impact resistance than PLA
- Good layer adhesion for watertight prints
- Food-safe certification available
- Lower stringing than standard PETG due to optimized flow
What are the best PETG HF print settings?
Use default Bambu Lab temperature profiles for PETG HF. Recommended outer wall speed is 200 mm/s.
| Setting | Value | Note |
|---|---|---|
| speed.layers.outerWall | 200 | HF PETG can maintain high outer wall speeds |
| speed.layers.innerWall | 300 | High flow allows fast inner walls |
| speed.layers.sparseInfill | 500 | Slightly reduced from PLA defaults for PETG |
| quality.advanced.avoidCrossingWall | true | Reduces stringing on PETG parts |
| support.thresholdAngle | 35 | PETG droops slightly more than PLA — lower threshold |
| support.filament.interface | Support for PA/PET (Bambu Lab) | Dedicated interface for PETG — PVA incompatible |
| support.filament.base | Same as model | PETG as bulk support |
| others.bed.brimType | Outer brim only | PETG benefits from brim for bed adhesion |
| quality.precision.elephantFootCompensation | 0.2 | PETG squishes more on first layer |
What nozzle size should I use for PETG HF?
0.4mm nozzle — HF formulation flows well even through standard nozzle
0.4mm standard — leverages the high-flow advantage fully
0.6mm nozzle — HF version handles larger nozzle exceptionally well
How do I dry PETG HF filament?
Dry PETG HF at 65°C for 6-8 hours. Moderate — dry before printing for best results
What support material should I use with PETG HF?
Recommended: PETG base + Support for PA/PET interface
Base: Same as model (PETG) | Interface: Support for PA/PET (Bambu Lab)
PETG as bulk support with Bambu's PA/PET support at interface only. PVA does NOT work with PETG temperatures. Interface-only saves material while keeping clean separation.
~25% less support filament used
Expert Tips for PETG HF
- PETG HF flows up to 30% faster than standard PETG — leverage this for speed.
- Use Z-hop (enable in travel settings) to prevent nozzle dragging on PETG.
- Reduce cooling fan to 30-50% — full cooling causes poor layer adhesion with PETG.
- A glue stick on the build plate prevents PETG from bonding too aggressively to PEI.
Which Bambu Lab printers work with PETG HF?
Alternatives to PETG HF
If you want easier printing with good impact resistance and no stringing
Trade-offs: Lower heat resistance (~55°C vs ~80°C). Not food-safe. Less chemical resistance
If you need superior UV resistance for long-term outdoor exposure
Trade-offs: Requires enclosure for best results. More warping than PETG. Produces fumes — needs ventilation
If you need HDT ~100°C for heat-exposed functional parts (car, electronics)
Trade-offs: Requires enclosed printer. Heavy warping without brim and enclosure. Produces strong fumes
Get your full PETG HF profile
Use Print Advisor to generate a complete Bambu Studio-compatible JSON profile for PETG HF, customized to your priorities and printer.
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