PA-CF (Carbon Fibre Nylon) on Voron Trident

Nozzle Temp

280 °C

Range: 270 – 290 °C

Bed Temp

80 °C

Range: 60 – 90 °C

Print Speed

50

mm/s · max 60

Layer Height

0.20

mm · max 0.28

Fan Speed

10 %

1st layer: 0 %

1st Layer Speed

20

mm/s

Retraction

0.7 mm

@ 45 mm/s

Nozzle Type

Hardened

Required — abrasive

Retraction Note

• A hardened nozzle is mandatory. The Voron's Stealthburner handles PA-CF well.

Settings

Recommended

Range

Nozzle Temperature

280 °C

270 – 290 °C

Bed Temperature

80 °C

60 – 90 °C

Print Speed

50 mm/s

up to 60 mm/s on this printer

First Layer Speed

20 mm/s

slower is better for adhesion

Layer Height

0.16 – 0.24 mm

0.12 – 0.28 mm

Fan Speed (Normal)

0 – 20 %

–

Fan Speed (1st Layer)

0 %

–

Retraction Distance

0.7 mm

Direct drive

Retraction Speed

45 mm/s

–

Nozzle Type

Hardened steel

Required — this filament will destroy brass

Dry Filament

80 °C for ≥ 12 h

print from a dry box in humid weather

Enclosure

Required — built in

Required — this printer is enclosed

Support Material

PVA

–

Printing Notes

PA6-CF is the strongest filament OzFDM sells — 60 – 65 MPa tensile and a 4900 – 5000 MPa flexural modulus, with a 200 °C heat deflection temperature.

It demands a hardened nozzle, a hot chamber and genuinely dry filament. Treat any one of those as optional and the print will fail.

Klipper's pressure advance does most of the ooze control on a Trident, so short fast retraction beats long slow retraction here.

As a self-built machine the Trident's chamber temperature is whatever you have built it to hold — check it before starting a high-temperature print rather than assuming.

Slicer: OrcaSlicer / SuperSlicer (Klipper). Dry the filament at 80 °C / ≥ 12 h before a long print — every figure above assumes dry filament.

Troubleshooting

Steam, popping and a furry surface — PA6 absorbs about 1 % moisture. Dry twelve hours at 80 °C and feed from a sealed dry box during the print.

Layers separating under load — Nozzle too cool for the speed. Push to 290 °C and slow to 40 mm/s — layer bonding in nylon is heat-driven.

Parts distorting after they come off the bed — PA6 continues to absorb moisture and grows slightly. Anneal, then condition the part before measuring it.