Bambu Lab ABS GF

Bambu Lab ABS-GF Filament — 1.75 mm, 1 kg

ABS-GF is Bambu Lab's glass-fibre reinforced ABS. The chopped glass fibre blended through the ABS base does three useful things at once: it stiffens the part dramatically, it cuts the shrinkage that makes plain ABS curl off the plate, and it lifts heat resistance so parts stay dimensionally stable well above what PLA or PETG can handle. The finish comes out matte rather than glossy, which hides layer lines nicely on visible parts.

It's a material for people printing things that have a job to do — machine brackets, jigs and fixtures, tool holders, RC and drone frames, motor mounts, electronics enclosures, automotive trim and prototype housings. Makers and small businesses reach for it when PETG flexes too much and plain ABS warps too much. Schools and workshops with an enclosed printer will find it a solid step up into engineering-grade materials, though it does ask for a bit more setup than PLA.

Key features

Glass-fibre reinforced  Low warp vs standard ABS  High stiffness · 2860 MPa flexural modulus  Heat resistant · ~99 °C HDT  Matte engineering finish  ±0.03 mm tolerance  RFID auto-recognition  6 colours

Printer compatibility

ABS-GF suits any 1.75 mm FDM printer with an all-metal hotend, a heated bed and — importantly — an enclosure. On Bambu Lab hardware that means the X1 series, P1 series and the enclosed H2 range; the open-frame A1 and A1 mini can run it, but you'll need to tent or enclose them to avoid layer splitting. Two things to check before you load it:

• Use a hardened steel nozzle. Glass fibre is abrasive and will chew through brass in a matter of spools. Stick to 0.4, 0.6 or 0.8 mm — the 0.2 mm nozzle is not compatible.
• AMS: works with AMS 2 Pro and AMS HT. AMS lite is not compatible with ABS-GF, so feed it directly from an external spool holder on A1-series machines.

Recommended print settings

• Nozzle temperature: 240–280 °C (start at 260 °C and tune for layer adhesion)
• Bed temperature: 80–100 °C, with glue stick or a textured PEI plate for adhesion
• Chamber temperature: 45–60 °C — keep the enclosure shut and the chamber fan off
• Print speed: up to 180 mm/s; slow down on tall thin parts to limit stress
• Part cooling fan: 0–80%, kept low (around 20–30%) — too much cooling is the main cause of warping and weak layer bonds in ABS-GF
• Drying: 80 °C for 8 hours if the spool has been open a while

Bambu Lab spools carry an RFID tag, so on a compatible printer the material profile, colour and remaining weight are detected automatically — load it and print. On other printers, start from a generic ABS profile and raise the nozzle temperature a little.

Specifications

Available colours

Orange (41300)  Red (41200)  White (41100)  Gray (41102)  Black (41101)  Blue (41600)

Every colour shares the same specs and print profile, so you can swap shades mid-project without re-tuning. Select your colour above before adding to cart.

Tips from our workshop

Keep the heat in and the fan down. Almost every ABS-GF failure traces back to cooling — a cracked corner or a split layer halfway up a tall part means the chamber dropped too far or the part fan was running hard. Shut the enclosure, leave the chamber exhaust off, cap the part fan around 20–30%, and add a brim on anything with a small footprint. ABS-GF warps far less than plain ABS, but it isn't immune.

Store it dry, and mind the dust. ABS absorbs moisture slowly, and damp ABS-GF prints brittle with a rough, hairy surface — keep spools in a sealed box with desiccant between jobs and run an 8-hour dry at 80 °C if a spool has been sitting out. Also remember the glass fibre is abrasive: a hardened steel nozzle is not optional, and ABS gives off a noticeable odour while printing, so print in a ventilated space or use a printer with filtration.