PETG Filament Settings:
Precision Calibrated.

PETG sits between PLA and ABS in difficulty: tougher and more heat-resistant than PLA, but prone to stringing. This guide covers every parameter you need to dial in 3D filament PETG in OrcaSlicer.

ParameterStarting Value
Nozzle Temperature230–240 °C
Bed Temperature70–80 °C (First Layer)
Cooling Fan0% (First 3 Layers)
Retraction (Direct)0.5–1.0 mm
Open Filament SettingsDownload Orca Slicer
OrcaSlicer interface showing filament profile settings

Before You Start: Dry Your Filament and Prep the Bed

PETG is hygroscopic and absorbs moisture faster than PLA. Wet PETG produces bubbling, popping sounds, and stringing that no setting will fix.

●
Dry the filament: 65 °C for 4–6 hours in a dryer.
●
Clean the build plate: Wipe with 90%+ isopropyl alcohol.
●
Plate selection: Use textured PEI; avoid bare glass.
●
Z-offset: Set slightly higher than PLA to avoid tearing.
Calibration Note: Keep first-layer speed at or below 30 mm/s regardless of the overall speed profile.
3D Printing Environment

Nozzle and Bed Temperature for PETG

Nozzle Temperature

230–250 °C

  • Start at 235 °C for unfamiliar brands.
  • Transparent PETG: 230–240 °C.
  • High-flow variants: 240–260 °C.

Bed Temperature

70–85 °C

  • First layer: 75–80 °C for adhesion.
  • Subsequent: Drop 5–10 °C.
  • Bare glass: 80–90 °C + Release Agent.

Cooling Fan Strategy

SequenceFan SpeedPurpose
Layers 1–30%Maximum Bed Adhesion
Layers 4–8Ramping UpGradual Thermal Stability
Layer 9+20–40%Optimal Layer Fusion
Overhangs50–60%Structure Integrity
Bridges60–80%Gap Maintenance

*In OrcaSlicer, enable 'Bridge fan speed' for dynamic control across gaps.

Print Speed Recommendations

01

Outer Wall

40–60 mm/s

Largest impact on surface quality.

02

Infill

80–100 mm/s

Balance speed and integrity.

03

Travel Speed

150–200 mm/s

Faster travel reduces ooze time.

Fixing PETG Stringing

Stringing is the most common PETG complaint. Follow this hardware-calibrated sequence to eliminate it.

Retraction Base

0.5mm
Direct Drive
45mm/s
Speed Ceiling
  1. Dry the filament: Essential first step.
  2. Lower nozzle temp: Drop 5 °C to reduce ooze.
  3. Increase travel speed: Aim for 150–180 mm/s.
  4. Avoid crossing walls: Keep travel inside model.
  5. Wipe while retracting: Drags ooze back into wall.
  6. Fine-tune: Increase retraction in 0.25mm steps.

Ready to dial in your PETG profile?

Access the full library of community-tested filament profiles.

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Frequently Asked Questions

What temperature should I print PETG at? +
Most print well between 230 °C and 245 °C. Start at 235 °C and run a temperature tower to find the sweet spot for your specific brand.
Why does my PETG string so much? +
Usually wet filament or high nozzle temperature. Dry your filament for 6 hours first before making settings changes.
Does PETG need an enclosure? +
No. PETG has low warp tendency and prints well in open-air setups. In fact, an enclosure can increase stringing.
Can I print PETG on a glass bed? +
Yes, but use a release agent like glue stick to prevent the glass from chipping as PETG bonds very aggressively.