How to print with TM3D PETG
PETG (Polyethylene terephthalate with glycol) is a versatile 3D printing material that offers the perfect balance between the strength of ABS and the ease of use of PLA. It is tough, wear-resistant, moisture-resistant, and has excellent layer adhesion, making it ideal for both functional parts and visually appealing prints.
Unlike PLA, PETG is more resistant to heat, UV, and chemical influences. At the same time, it is much easier to print than ABS, without requiring a closed printer enclosure. PETG adheres well to various build surfaces but does require some attention to details such as retraction settings and cooling to minimize stringing.
🧵 Filament
| Setting | Generic PETG |
|---|---|
| Flow Ratio | 0.95 |
| Density | 1.27 g/cm³ |
| Nozzle Temp First Layer | 255°C |
| Nozzle Temp Other Layers | 255°C |
| Bed Temperature | 70°C |
| Max Volumetric Speed | 12 mm³/s - 15 mm³/s |
| Cooling | 10% min / 40% max |
⚡ Speeds
| Setting | Generic PETG |
|---|---|
| Outer Wall | 200 mm/s |
| Inner Wall | 300 mm/s |
| Sparse Infill | 300 mm/s |
| Internal Solid Infill | 250 mm/s |
| Top Surface | 200 mm/s |
| Travel | 500 mm/s |
Note: Bambu only reaches these speeds if the volumetric limit of 12 mm³/s is not exceeded.
🌬️ Cooling
| Setting | Generic PETG |
|---|---|
| Part Cooling Fan Min | 10% |
| Part Cooling Fan Max | 40% |
| Bridge Fan Speed | 70% |
| Auxiliary Fan | 0% |
🔧 Retraction
| Setting | Generic PETG |
|---|---|
| Retraction Length | 0.8 mm |
| Retraction Speed | 30 mm/s |
🧱 Strength
You can leave these almost the same:
- Wall loops: 2
- Top layers: 5
- Infill: 15%
- Grid infill
Adjustments I would personally make for TM3D PETG
TM3D PETG generally prints better than Generic PETG on:
- Nozzle: 250-260°C
- Bed: 80°C
- Fan: 0-10%
- Max Volumetric Speed: 14-16 mm³/s
- Flow Ratio: 0.95
