Verify overhangs and bridging

Confirms cooling and flow are genuinely right together. Good numbers on isolated tests can still produce bad unsupported geometry.

Phase 5 — Verificationabout 30 min

How to do it

1. Print the overhang and bridge test.
2. Find the angle at which the underside goes rough.
3. If overhangs are poor, increase cooling — but not on ABS/ASA, where fan causes layer splitting instead.
4. If bridges sag, raise fan and lower bridge flow.

How to read the result

Overhangs stay clean to roughly 45–60°. Bridges span without sagging into the gap.

Open First Layer →
The app walks this in order, generates the test model for your nozzle and filament, and records what you measure so nothing has to be repeated. Free, no account, works offline.