Printer Filament Guide

Best Filament for the Bambu Lab X1

The original base X1: same enclosed 300°C CoreXY platform as the Carbon, but a stainless nozzle that isn't abrasive-ready until you upgrade it.

Last updated: June 2026

The X1 is the base 2022 model that launched alongside the X1 Carbon. It uses the same enclosed CoreXY body, 300°C hotend, direct-drive extruder and 256 mm cube, but ships with a stainless nozzle and stainless extruder gears instead of the Carbon's hardened parts. It also runs standard lead screws rather than the Carbon's carbon-fibre rails, and has a single-red LiDAR. Bambu discontinued it well before the X1C/X1E, and the lineup has since moved on to the X2D.

What the Bambu Lab X1 prints well

Recommended materials for this printer:

PLA PLA+ PETG TPU ABS ASA PC Nylon

Fit a hardened nozzle before any carbon- or glass-fibre filament, since the stock nozzle isn't abrasive-rated. Everything non-abrasive prints out of the box.

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Abrasives are the key filament difference. In stock form, Bambu doesn't recommend running carbon-fibre, glass-fibre or other abrasive filaments on the X1, since the stainless nozzle and gears wear out. You can install the hardened nozzle and extruder upgrade to match the Carbon, but that's a separate purchase and a manual swap. For non-abrasive materials it's the same capable enclosed machine: PLA, PETG, ABS, ASA, PC and nylon all print fine. There's no active heated chamber, so large high-warp parts lean on the closed enclosure.

Bambu Lab X1 specs that affect filament

Build volume
256 × 256 × 256 mm
Enclosure
Enclosed
Heated chamber
No
Extruder
Direct drive
Max hotend temp
300°C
Stock nozzle
Stainless steel 0.4 mm (hardened is a separate upgrade)
Abrasive-ready (CF/GF)
Needs hardened nozzle
Multi-material
AMS compatible (sold separately)

In 2026 this is really a used/secondhand consideration since it's long discontinued. If you find one and only print standard materials, it's still a solid enclosed printer. Once you want carbon-fibre composites, budget for the hardened-nozzle upgrade, or just grab an X1C/X2D that already has it.

Filament notes for the Bambu Lab X1

  • Stock stainless nozzle is NOT abrasive-rated. Avoid PLA-CF, PA-CF, PC-CF, PETG-CF and GF blends until you install the hardened nozzle and extruder upgrade.
  • Once upgraded to hardened parts, it matches the X1 Carbon's abrasive capability.
  • Non-abrasive materials print well stock: PLA, PETG, ABS, ASA, PC, nylon and TPU.
  • No active heated chamber, so keep the enclosure closed for ABS/ASA and print large parts slowly to limit warping.
  • The direct-drive extruder handles TPU. Run it slow and dry it first.
  • Dry nylon before printing. It's hygroscopic and prints poorly when wet, upgrade or not.
How SpoolHound tracks prices

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Frequently Asked Questions

What's the difference between the X1 and the X1 Carbon?
The X1 Carbon ships with a hardened steel nozzle and hardened extruder gears (abrasive-ready out of the box), plus carbon-fibre rails and dual-red LiDAR. The base X1 uses stainless parts and standard lead screws, so it isn't abrasive-ready until you install the hardened upgrade.
Can the X1 print carbon-fibre filament?
Not in stock form. Bambu doesn't recommend abrasive filaments on the stainless nozzle and gears. Install the hardened nozzle and extruder upgrade first, and after that it handles CF and GF composites like the X1 Carbon.
Is the X1 still sold?
No. The base X1 was discontinued well before the X1C/X1E end-of-life in March 2026, and the current X-series flagship is the X2D. In 2026 the X1 is a secondhand option.
Does it have a heated chamber?
There's no active heated chamber. Like the X1 Carbon, it relies on passive heat from its closed enclosure. ABS and ASA print well, and for tall PC or ABS parts you'll want to keep it fully closed and expect some warp risk.

Different printer? See filament by printer for the rest of the lineup, or browse cheapest filament by material.