Carbon-fiber-class machines keep getting cheaper, and the question that matters is no longer the price tag—it’s whether an affordable enclosed printer can actually run the demanding materials it advertises. In this video, the maker channel 3DHP puts the Elegoo Centauri Carbon to work with ASA Glass Fiber (ASA-GF), a stiff, weather-resistant engineering filament whose chopped glass reinforcement and high process temperatures tend to expose a printer’s weaknesses fast.
What the video covers
3DHP walks through what it takes to get a glass-fiber-reinforced ASA running on the Centauri Carbon—the kind of higher-temperature, abrasive material that benefits from a sealed chamber and a hardened nozzle. Rather than treating the machine as a sealed box, the video shows the practical side of the workflow: loading the filament, dialing in the print, and looking at how the finished parts hold up.
It’s the sort of hands-on look you can’t get from a spec sheet. A manufacturer’s claims tell you a printer can handle engineering filaments; a creator actually feeding ASA-GF through one shows you what that looks like in practice.
The bigger picture: why an enclosure matters for ASA and fiber-filled filaments
ASA is prized outdoors because it resists UV and weathering far better than PLA or PETG—but it shrinks as it cools, and uneven cooling is what causes corners to lift and layers to split. A warm, draft-free chamber slows that cooling and reduces the internal stress that drives warping, which is why ASA, ABS, and polycarbonate are far more forgiving in an enclosed machine than on an open-frame one. Filament makers commonly recommend an enclosure temperature in the 60–80°C range for these materials.
The “glass fiber” half adds a second wrinkle. ASA-GF blends chopped glass fiber into the ASA base to boost stiffness, dimensional stability, and impact resistance—Siraya Tech’s Fibreheart ASA-GF, for example, publishes a tensile modulus around 2,871 MPa and a glass-transition temperature near 106°C. But those same fibers are highly abrasive: glass- and carbon-filled filaments chew through a soft brass nozzle quickly, which is why hardened steel (or a wear-resistant tip) is effectively mandatory for printing them in any volume. That combination—needing both real chamber control and abrasion-resistant hardware—is exactly what separates a printer that can dabble in engineering materials from one that can live on them.
The claims — and why it matters
The Centauri Carbon is Elegoo’s first fully enclosed CoreXY machine, and on paper it’s aimed squarely at this kind of work. Per Elegoo’s published figures, it offers:
- A 256 × 256 × 256 mm enclosed, CoreXY build volume with a starting price around $299.
- A hardened-steel nozzle rated to 320°C, plus hardened extruder gears—the kind of wear-resistant hardware abrasive, fiber-filled filaments require.
- A quoted top speed of 500 mm/s and 20,000 mm/s² acceleration, with auto-leveling and a flexible PEI build plate.
- An enclosure with a chamber fan and integrated filters, marketed for thermal stability with temperature-sensitive materials.
Treat those as the maker’s specifications, not proven outcomes. “Affordable enclosed CoreXY” used to be an oxymoron—sealed, fast machines were premium gear—so a sub-$300 printer claiming the chamber control and hardened hardware needed for ASA-GF is precisely the claim worth pressure-testing. A hardened nozzle and a passive enclosure are necessary, but whether the chamber actually gets warm and stable enough for clean GF prints is the open question a real-world test like this one helps answer.
What to watch for
- How warm the chamber actually runs. A passive enclosure with a fan is not the same as an actively heated chamber; watch for any first-layer lift or corner warping on larger ASA-GF parts.
- Nozzle and feed-path wear. Glass fiber is abrasive; note whether the stock hardened nozzle holds up and whether flow stays consistent over a long print.
- Filament handling. ASA and its GF variants are moisture-sensitive—drying and storage matter, and damp filament shows up as poor surface finish and weak layers.
- Part strength versus appearance. Fiber-filled prints can look matte and rough by design; judge them on stiffness and dimensional accuracy, not gloss.
More from 3DHP
For a look at the same machine with a more everyday material, 3DHP also covers functional PETG prints on the Centauri Carbon—a good companion if you care more about durable, practical parts than exotic engineering filaments.
Credit: All footage by 3DHP—we summarize and embed creators’ work to point you to the original. Watch the full videos and subscribe on 3DHP’s YouTube channel. Printer specifications are Elegoo’s published figures, not independently verified results; filament properties cited are the materials makers’ published claims.
