Ultimaker 2

The Ultimaker 2 is an FDM 3D printer from Ultimaker B.V. with a 230 x 225 x 205 mm build volume.

Calibration

• Start with a full mechanical sanity check before touching slicer settings.

Action: Power off the printer, inspect the belt paths, verify that the printhead carriage moves freely across X and Y, and confirm the Bowden tube is fully seated with no obvious kinks. Then check that the glass bed is clean and the build surface is free of residue, fingerprints, and adhesive buildup.

Common defects

The base Ultimaker 2 is generally regarded as a strong, precise machine, but the provided sources and the machine’s design imply several recurring defect classes that users should plan around.

1. Bowden-feed sensitivity and filament diameter mismatch

Symptoms: Clicking feeder, intermittent under-extrusion, inconsistent line width, or sudden grinding near the feeder entrance.