ELEGOO Carbon Fiber PLA Filament 1.75mm PLA-CF Black 1KG +/-0.02mm Review (2026)

What this filament is

This is ELEGOO's PLA-CF, a carbon fiber filled PLA in black sold on a 1.75mm, 1KG spool with a published dimensional accuracy of plus or minus 0.02mm. ELEGOO markets it as reinforced for superior strength and rigidity in structural and engineering-style parts, and the listing highlights the tight tolerance as a selling point for a filled filament, since fiber content can otherwise make diameter control harder to hold. It is aimed at the same category as other carbon fiber PLAs: brackets, jigs, fixtures and other parts that benefit from added stiffness, rather than parts that need to flex or absorb repeated impacts without cracking.

Strength, rigidity and layer adhesion

ELEGOO lists a flexural strength of 78 MPa with a flexural modulus of 3341 MPa for this filament, which reflects the added stiffness the carbon fiber content provides over plain PLA. The company also states the carbon fiber content minimizes warping and shrinkage, which should translate into better dimensional stability on larger flat prints than plain PLA sometimes shows. ELEGOO markets improved layer adhesion for this filament compared with older carbon fiber PLA formulas, which if accurate should mean fewer layer-separation failures on tall prints. As with any chopped-fiber filament, the reinforcement helps resist bending far more than it helps resist a sudden, sharp impact, so parts prone to being dropped are still better served by an unfilled or tougher filament.

Print settings and nozzle wear

ELEGOO recommends a print temperature between 210C and 240C and a bed temperature of 35C to 65C for this filament, both within reach of most consumer FDM printers without special upgrades. The company also advises a hardened steel nozzle since brass wears down gradually from the abrasive carbon fiber particles, the same guidance given for essentially every carbon fiber filled filament on the market. ELEGOO states the filament is easy to print as regular PLA without clogs or bubbles, which suggests the fiber content is well dispersed rather than clumping, though as with any filled filament a clean, unworn nozzle helps keep flow consistent over a long print.

Finish and appearance

The black carbon fiber texture is described by ELEGOO as effectively hiding layer lines, giving printed parts a more finished, textured matte look without extra post-processing, which is a common benefit across carbon fiber filaments generally. That visual finish, combined with the added rigidity, makes this a reasonable option for parts where both function and a clean professional appearance matter, such as camera mounts, tool handles or enclosure panels. Buyers wanting a glossy or brightly colored finish should note that carbon fiber filaments are limited to darker, matte colors because of the fiber content itself, so this is not a filament for colorful display pieces.

Value against Polymaker's PLA-CF

ELEGOO's PLA-CF is generally priced below Polymaker's PolyLite PLA-CF while offering a tighter published tolerance, 0.02mm against Polymaker's 0.03mm, which makes it an attractive value pick on paper. Polymaker's longer-standing reputation for consistent quality control across batches is the main thing buyers are paying extra for with the Polymaker option, which can matter more on very long or precision-critical prints where a single bad section of filament causes a failure. For most hobbyist brackets, mounts and fixtures, ELEGOO's pricing and tolerance make it a sensible default, with Polymaker worth the extra cost mainly for buyers who have had inconsistency issues with budget filament before.

Frequently asked questions