The Ultimaker Print Core AA 0.4 mm is the standard build material print core for Ultimaker's dual-extrusion 3D printers. Designed for the print core bay on Ultimaker 3, S3, and S5, the AA core handles all primary build materials including PLA, ABS, CPE, Nylon, PC, and TPU. The 0.4 mm nozzle diameter is the most versatile size in the lineup - it balances fine surface detail with print speed and works well for both prototyping and functional end-use parts.

The hot-swap print core system on Ultimaker printers allows AA cores to be exchanged quickly without tools, so users can adapt their machine to different material combinations with minimal downtime. The AA 0.4 mm is also available in 0.25 mm (maximum detail and resolution) and 0.8 mm (high speed and large-volume printing), allowing teams to select the right core for each application.

Key features

• Standard AA build material core compatible with the widest range of Ultimaker materials including PLA, ABS, CPE, Nylon, and PC.
• 0.4 mm nozzle diameter for the ideal balance between surface detail and print speed on Ultimaker dual-extrusion systems.
• Hot-swappable design allowing quick core changes without tools for fast material transitions.
• Smart chip enables automatic material recognition and optimal print settings in Ultimaker Cura.
• Designed for long service life with replaceable nozzle after extended use.
• Also available as Print Core AA 0.25 mm (fine detail) and AA 0.8 mm (high throughput) for application-specific needs.

Compatible with: Ultimaker 3, Ultimaker S3, Ultimaker S5