Private on-device repair evidence

Nozzle Scraping or Hitting the Print

A detailed STLBEAST repair guide to separate harmless travel sounds from real collision risk. Learn how to recognize the symptom, rank the likely causes, apply safe fixes in order, verify the result, and prevent the failure from returning.

Not started0 of 8 stepsNot yet saved

Visual repair reference for nozzle scraping or hitting the print — A small representative test no longer shows the original symptom.

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.

Controlled tests logged0

Verification resultNot recorded

Machine and material context

Record the setup that produced this result

Printer Extruder Material Slicer Nozzle / layer

Saved only in this browser with the repair. Nothing is uploaded.

Optional visual proof

Add before and after photos for this report

Before repairChoose a photo After proof testChoose a photo

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One variable at a time

Controlled test history

No controlled tests have been logged yet. Return to Workshop Mode and record each change before running another test.

Repair sequence

Step completion

1
Document the failure and confirm that it matches this guide: The nozzle drags across infill, knocks the model, or leaves scratches on top surfaces.Not completed
2
Return extreme overrides to a known printer, nozzle, material, and slicer profile so the diagnosis starts from a stable baseline.Not completed
3
Check over-extrusion. Check for raised plastic.Not completed
4
Check warping or curled edges. Verify hotend and gantry tightness.Not completed
5
Inspect loose hotend or gantry. Reduce excess flow.Not completed
6
Rule out travel strategy or missing z-hop. Use Z-hop only when needed.Not completed
7
Change only the single setting or hardware condition supported by the evidence, then run a small test that reproduces the original failure.Not completed
8
Compare the test against the target condition, record the successful value, and save it in a printer/material profile before repeating the full print.Not completed

Private workshop notes

Observations and winning values

No notes recorded.

Verification test

Model: 100 mm extrusion and thin-wall test
Setup: Use the same nozzle, material and hotend temperature planned for the print.
Pass: Flow is smooth and the wall is continuous with stable width.
If unchanged: Clicking, gaps, pulsing or inconsistent line width remains.

Matched next step

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Nozzle Scraping or Hitting the Print

Verification test

Keep the winning setup and change only one variable in the next test.

Keep the useful workflow going.