- Do I need a hardened nozzle for this filament?
- Yes. The carbon fibers abrade brass quickly, so use a hardened steel or ruby-tipped nozzle and a hardened extruder gear. A stock brass nozzle will wear and widen over a spool or two.
- How does it compare with plain PETG?
- It is stiffer and has a matte finish that hides layer lines, but it is more brittle and less forgiving on layer adhesion. Choose it for rigidity, not for flexible or impact-heavy parts.
- What temperatures should I print it at?
- Start in the PETG range, roughly 230 to 250 C at the nozzle and 70 to 80 C on the bed, and tune from there. Run a temperature tower, since carbon-filled blends vary.
- Is it stronger than regular PETG?
- It is stiffer, not tougher. Bending resistance improves, but impact strength drops, so thin snap-fit parts can crack where plain PETG would flex.
- Does it need a hardened extruder?
- A hardened or coated drive gear is wise. The fiber slowly grinds down soft brass gears, and worn gears cause slipping and under-extrusion.
- Is it food-safe or safe for wear parts?
- No. Carbon-filled filament is not food-safe, and exposed fibers make it a poor choice for gears or sliding surfaces that rub.
- Where is the Flashforge Carbon Fiber PETG Filament 1.75mm 1kg cheapest?
- At Flashforge, for $25.99, as of our latest check.
- Where can I buy the Flashforge Carbon Fiber PETG Filament 1.75mm 1kg?
- 4 stores we checked sell it, including Flashforge, Lowe's, Best Buy, Amazon.