PETG-CF Settings for Markforged Mark Two
Recommended slicer settings for printing PETG-CF on the Markforged Mark Two (320 x 132 x 154 mm build volume, 200 mm/s max speed, direct drive extruder).
Not Compatibleintermediate
Not Compatible
The max bed temperature of 0°C is below the recommended 70°C for PETG-CF. Adhesion may be poor without additional bed adhesion aids.
| Filament Nozzle Requirement | 230-260°C |
| Printer Max Nozzle | 300°C |
| Filament Bed Requirement | 70-80°C |
| Printer Max Bed | N/A |
What to do instead
- Your printer's bed maxes out at 0°C, but PETG-CF needs at least 70°C for reliable adhesion.
- Try a compatible filament for your Markforged Mark Two — PLA, PETG, and ABS are good options.
- If you need PETG-CF specifically, you'll need a printer with a hotend capable of 230°C+ nozzle.
PETG-CF Requirements
PETG-CF Properties
| Nozzle Range | 230-260°C |
| Bed Range | 70-80°C |
| Speed Range | 30-50 mm/s |
| Difficulty | intermediate |
| Enclosure | Not needed |
| Drying | 65°C / 8h |
Markforged Mark Two Specs
| Build Volume | 320 x 132 x 154 mm |
| Max Speed | 200 mm/s |
| Max Nozzle Temp | 300°C |
| Max Bed Temp | N/A |
| Extruder | Direct Drive |
PETG-CF at a Glance
Strengths
- Significantly stiffer than standard PETG
- Professional matte surface finish
- Reduced warping compared to plain PETG
- Good chemical and moisture resistance
- Excellent for functional brackets, jigs, and fixtures
Weaknesses
- Requires hardened steel nozzle (carbon fibers destroy brass)
- More brittle than standard PETG (reduced flexibility)
- Must use 0.5mm+ nozzle to prevent clogging
- Slower print speeds required than standard PETG
- Higher cost than plain PETG ($30-45/kg)
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Try 3DSearch →Sources: Based on manufacturer specifications and community recommendations, community testing data, manufacturer recommended ranges. Values calculated from filament specifications and printer hardware limits.