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Nozzle Wear Diagnosis

Identify enlarged or damaged nozzle openings, soft detail, inconsistent line width, and abrasion damage.

Start hereCompare line width, detail, and extrusion against a known nozzle. Abrasive filaments can enlarge soft nozzles and change both quality and dimensions.

First safe actionRun the first safe check and change one variable at a time.

Proof targetA small representative test no longer shows the original symptom.

Problem, repair steps and target result for nozzle wear diagnosis — Match the failed area to the visual before changing a setting.

Repair progress0 of 6 complete

Step 1 of 6

Review material history and nozzle type.

Visual reference while completing step 1 of nozzle wear diagnosis — Keep the problem and target visual open while you make this change.

Why this matters

Carbon, glass, glow, and some fills wear brass quickly.

Setting or checkNozzle material

Use abrasion-resistant material for abrasive filament.

Expected result

New nozzle restores detail.

Step 2 of 6

Inspect the nozzle cold and removed if the printer maker permits.

Visual reference while completing step 2 of nozzle wear diagnosis — Keep the problem and target visual open while you make this change.

Why this matters

Tip geometry is physically damaged.

Setting or checkNozzle size profile

Update slicer and printer settings.

Expected result

Line width and dimensions normalize.

Step 3 of 6

Compare extrusion and dimensions with a known-good nozzle.

Visual reference while completing step 3 of nozzle wear diagnosis — Keep the problem and target visual open while you make this change.

Why this matters

Hard tools enlarge or scratch the opening.

Setting or checkTemperature

Different nozzle materials may transfer heat differently.

Expected result

Purge strand is consistent.

Step 4 of 6

Confirm slicer nozzle size matches hardware.

Visual reference while completing step 4 of nozzle wear diagnosis — Keep the problem and target visual open while you make this change.

Why this matters

Wear/deposits alter flow.

Setting or checkNozzle material

Use abrasion-resistant material for abrasive filament.

Expected result

No scraping or leaks.

Step 5 of 6

Replace the nozzle if the opening/tip is damaged or wear is confirmed.

Visual reference while completing step 5 of nozzle wear diagnosis — Keep the problem and target visual open while you make this change.

Why this matters

Carbon, glass, glow, and some fills wear brass quickly.

Setting or checkNozzle size profile

Update slicer and printer settings.

Expected result

New nozzle restores detail.

Step 6 of 6

Recalibrate Z offset, flow, and pressure settings after replacement.

Visual reference while completing step 6 of nozzle wear diagnosis — Keep the problem and target visual open while you make this change.

Why this matters

Tip geometry is physically damaged.

Setting or checkTemperature

Different nozzle materials may transfer heat differently.

Expected result

Line width and dimensions normalize.

Controlled test log

Change one variable, then record what happened

This keeps temperature, retraction, speed, mechanical, and material tests from blending together. The history stays private in this browser.

Open proof report →

No controlled tests logged yet. Record the first change before adjusting a second variable.

Do not repeat the full print yet

Prove the repair with a small test

Test modelSmall representative test print

Setup

Use the same printer, material, slicer and key settings as the failed model.

Pass condition

The original symptom is absent and the target feature is repeatable.

If it still fails

The symptom remains in the same location or stage.

Recheck visual diagnosis

Complete the repair steps, run the proof test, and record the result.

Only if the proof test still fails

Next strongest repair paths

Do not stack these changes. Open one related guide based on the evidence that remains.

Visual guide for partial or clogged nozzle fix

ExtrusionPartial or Clogged Nozzle Fix

Use this next when flow remains weak, intermittent or uneven after the first checks.

Open guide →

Visual guide for flow rate and extrusion multiplier calibration

CalibrationFlow Rate and Extrusion Multiplier Calibration

Use this next when the symptom changes with extrusion width or wall thickness.

Open guide →

Visual guide for dimensional accuracy and fit tolerance

CalibrationDimensional Accuracy and Fit Tolerance

Open this related Calibration guide when the first repair path does not fully explain the remaining symptom.

Open guide →

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