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Polycarbonate settings for the Bambu Lab X1 Carbon

Great match

These are tuned starting settings for printing Polycarbonate on the Bambu Lab X1 Carbon. The Bambu Lab X1 Carbon has a direct-drive extruder and an all-metal hotend in an enclosed chamber, so we set the hotend to 275°C and the bed to 110°C. Polycarbonate is one of the strongest filaments but needs high temps and an all-metal hotend.

275°C
Hotend
110°C
Bed
49 mm/s
Speed
0%
Part fan

Recommended Polycarbonate profile

Hotend temperature275°C (tower 260–300°C)
Bed temperature110°C
Print speed49 mm/s
Retraction1.2 mm (direct drive)
Part cooling fan0%
Bed adhesionVery hot bed + enclosure; PC needs an all-metal hotend.
NozzleBrass 0.4 mm is fine
DifficultyAdvanced
💡 Best uses for Polycarbonate: high-heat parts, impact-resistant parts.

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FAQ

What temperature should I print Polycarbonate on the Bambu Lab X1 Carbon?
Start at 275°C for the hotend and 110°C for the bed, then run a temperature tower across 260–285°C to dial in your exact filament brand.
What print speed works for Polycarbonate on this printer?
Around 49 mm/s is a safe starting point on the Bambu Lab X1 Carbon. This printer can go faster once the profile is tuned, but start conservative for clean walls.
What retraction should I use?
Use about 1.2 mm of retraction (direct drive needs very little). If you see stringing with Polycarbonate, raise retraction speed before distance and dry the filament.
Do I need an enclosure for Polycarbonate on the Bambu Lab X1 Carbon?
The Bambu Lab X1 Carbon is enclosed, which is exactly what Polycarbonate needs for warp-free prints.