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ASA settings for the Bambu Lab A1

Possible with tweaks

These are tuned starting settings for printing ASA on the Bambu Lab A1. The Bambu Lab A1 has a direct-drive extruder and an all-metal hotend, so we set the hotend to 250°C and the bed to 100°C. ASA is the UV-stable cousin of ABS and the better choice for parts left in the sun.

250°C
Hotend
100°C
Bed
63 mm/s
Speed
0%
Part fan

Recommended ASA profile

Hotend temperature250°C (tower 240–260°C)
Bed temperature100°C
Print speed63 mm/s
Retraction1 mm (direct drive)
Part cooling fan0%
Bed adhesionHot bed + enclosure; very similar to ABS.
NozzleBrass 0.4 mm is fine
DifficultyAdvanced
⚠️ ASA warps without an enclosure and the Bambu Lab A1 is open-frame. Block drafts, raise the bed temp, and add a brim; for tall parts an enclosure is strongly recommended.
💡 Best uses for ASA: outdoor parts, UV-resistant parts.

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FAQ

What temperature should I print ASA on the Bambu Lab A1?
Start at 250°C for the hotend and 100°C for the bed, then run a temperature tower across 240–260°C to dial in your exact filament brand.
What print speed works for ASA on this printer?
Around 63 mm/s is a safe starting point on the Bambu Lab A1. This printer can go faster once the profile is tuned, but start conservative for clean walls.
What retraction should I use?
Use about 1 mm of retraction (direct drive needs very little). If you see stringing with ASA, raise retraction speed before distance and dry the filament.
Do I need an enclosure for ASA on the Bambu Lab A1?
Yes — ASA really wants an enclosure and the Bambu Lab A1 is open, so expect warping on large parts without one.