Case library

Submit a failed print case after one clear test.

The best submission is not a perfect write-up. It is a visible failure, the exact printer context, one thing you changed, and what happened next.

1. Match the failure

Pick the closest diagnosis page or symptom on the home page before submitting.

2. Run one small test

Use a test STL or repeat the same small part so the result is comparable.

3. Send the evidence

Submit the printer context, the one variable changed, and before / after photos or logs.

Photos That Help

  • Front photo of the failed part under bright, even light.
  • Side photo showing layer lines, lifted corners, blobs, or shifts.
  • Close-up of the first layer or failure area, not only the whole model.
  • Nozzle and build plate detail if the issue involves clogging, adhesion, or PETG release.
  • Slicer settings screenshot for temperature, retraction, flow, speed, and seam placement.
  • Exact Klipper error text and the relevant log lines for firmware stops.

Anonymous By Default

  • Do not include faces, addresses, serial numbers, or private files in photos.
  • Cases may be summarized anonymously in future diagnostic examples.
  • Images are reviewed before publication; submission does not guarantee they will be used.
  • Print Fixes does not need personal information to learn from a failure pattern.

What makes it publishable

A useful case has proof on both sides of one change.

See example case format
Before photo

The failed area close enough to see line shape, corner lift, strings, blobs, or log text.

Controlled test

A small STL or repeated print section where only one variable changes.

After photo

Same angle and lighting so the result is comparable instead of a new anecdote.

Exact context

Printer, slicer, firmware, material, nozzle, bed surface, and recent maintenance.

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Failed print case template

Use this as a checklist before opening the form. A short complete brief is more useful than a long story with missing settings.

Failed print case:

Printer:
- Model:
- Firmware:
- Slicer and profile:

Material:
- Brand / material / color:
- Drying or storage state:

Hardware:
- Nozzle size and material:
- Bed surface:
- Recent maintenance:

Symptom:
- What failed:
- Where it appears:
- Does it repeat on the same model/material:

Recent change:

First test tried:

One setting changed:

Result:

Photos or logs:
- Front photo:
- Side photo:
- First-layer close-up:
- Nozzle / build plate detail:
- Slicer setting screenshot:
- Klipper exact error text, if relevant:

Before submitting

Run one small confirmation test if the printer is safe.

A before/after pair from the same STL is much more useful than a single failed full-size print.