RECORD LOCATED / 2026.09.01

PETG-CF printing

Carbon-fiber-filled PETG offers a matte finish and typically greater stiffness than the corresponding unfilled PETG. It is useful for housings, brackets, equipment mounts, and dimensionally stable prototypes. Increased stiffness does not automatically mean greater impact strength or stronger layer bonding. Dry to the product’s specification and store sealed. Orient loaded features so the principal load runs along deposited roads where practical rather than pulling layers apart. Increase wall thickness where fasteners load the part. Use the product’s actual density when estimating spool consumption and weight.

3DP-028REV A

Open notebook ↗

A CLOSER LOOK

Stiffness and layer direction are separate

OPEN FULL SIZE ↗

Conceptual fiber-filled print section; no structural rating is implied.Explanatory drawing based on this record

Material: PETG-CF
Wear: Abrasive filler
Caution: Stiffness does not establish impact strength or bonding

CLASSIFICATION3DP

STATUSRecovered/Partial

MATERIAL3D PRINT / MAKER

DISPOSITIONPUBLIC / RECOVERED/PARTIAL

VIEW FILE ↗

TECHNICAL NOTES///

PUBLIC KNOWLEDGE VIEW3D Printing / project

SOURCE STATEStarting profile—awaiting Robert’s retest

GOALRun the first test described in this guide and record the result for petg-cf printing.

SETTINGS / STARTING POINT

NozzleWear-resistant 0.6 preferred if available; 0.4 only if the product permits

Layer height0.24 with 0.6 nozzle; 0.20 with approved 0.4 nozzle

Nozzle temperature255; tune within the product range

Bed70–80

Outer wall / other extrusion30–40 / 40–60

First layer20

Part cooling0% initially, then 20–40%

Walls / infill4 walls, 25–40% gyroid as a functional-part starting point

EnclosureProduct- and ambient-dependent; avoid cold drafts

PREPARATION / NOTES

Dry to the product’s specification and store sealed. Orient loaded features so the principal load runs along deposited roads where practical rather than pulling layers apart. Increase wall thickness where fasteners load the part. Use the product’s actual density when estimating spool consumption and weight.

EQUIPMENT

FDM printer / slicer
Slicer project
Calipers or inspection method

MATERIALS

PETG-CF

STEPS

Confirm printer, nozzle, plate, and material identity.
Start from the recorded profile or the slicer default for that material.
Print a small first-layer and geometry test before the full part.
Inspect adhesion, dimensions, surface, supports, and failure mode.
Save the successful project with temperatures, speeds, and revision notes.

TROUBLESHOOTING

Fibers abrade nozzles and may clog small openings. A good-looking matte surface can hide poor bonding. Stringing and rough extrusion can still be moisture-related. Do not assume every automatic filament feeder supports abrasive filament. Contain dust during sanding or drilling.

THINGS TO WATCH FOR

Fibers abrade nozzles and may clog small openings. A good-looking matte surface can hide poor bonding. Stringing and rough extrusion can still be moisture-related. Do not assume every automatic filament feeder supports abrasive filament. Contain dust during sanding or drilling.

RESULTPrint a small bracket and hole-fit coupon; inspect layer bonding and fastener fit before producing the full part.

REFERENCES

provides a product example of 240–270°C extrusion and 0–40% part cooling; it does not verify Robert’s spool or FlashForge profile.

Bambu PETG-CF guide ↗

DEVELOPMENT HISTORY///

2026.09.01Rev A

Imported as an independent manifest record; public copy keeps uncertainty visible.

SPECIFICATION///