Brim vs Raft: Which Adhesion Aid to Use

Document the failure and confirm that it matches this guide: Tall, narrow, warped, or low-contact parts need more bed support.

Return extreme overrides to a known printer, nozzle, material, and slicer profile so the diagnosis starts from a stable baseline.

Check contact area too small. Try a brim first.

Check sharp corners concentrate stress. Round or add mouse ears to corners.

Inspect severe surface irregularity. Use a raft only for severe cases.

Rule out wrong orientation. Reorient to increase contact area.

Change only the single setting or hardware condition supported by the evidence, then run a small test that reproduces the original failure.

Compare the test against the target condition, record the successful value, and save it in a printer/material profile before repeating the full print.