PETG-CF filament: the numbers
PETG with chopped carbon fibre. Typical uses: stiff functional parts, camera mounts, automotive trim, drone and RC parts.
1.28 g/cm³density (1.24–1.32)
325 mper kg at 1.75 mm
3.08 gper metre
240–270 °Cnozzle
70–85 °Cbed
0.3%linear shrinkage
$38typical per kg ($28–55)
75 °Cmax service temperature
Not neededenclosure
65 °C · 8 hdrying (medium hygroscopic)
2/5difficulty · medium strength · rigid
Printing tips
- Hardened nozzle, 0.4 mm or larger.
- Much less stringing and warping than plain PETG; a good first engineering filament.
- Dry before printing; fibres do not stop moisture uptake.
Grams ↔ metres for PETG-CF
What a PETG-CF print costs
Questions about PETG-CF
What temperature should I print PETG-CF at?
Nozzle 240–270 °C and bed 70–85 °C are the usual range. Start in the middle and tune with a temperature tower; no enclosure is needed.
How many metres of PETG-CF are in a 1 kg spool?
About 325 m at 1.75 mm (density 1.28 g/cm³). One metre weighs 3.08 g.
Does PETG-CF need drying?
Yes — it is moderately hygroscopic. Dry at 65 °C for 8 hours before printing if it has been open for more than a few days.
How much does PETG-CF shrink?
About 0.3% linear. To compensate, scale X and Y by 100.30% in the slicer, or measure a test print and use the shrinkage calculator.
Sources: wiki.polymaker.com, wiki.bambulab.com