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Private on-device repair evidence

Color Change and Purge Problems

A detailed STLBEAST repair guide to remove weak transitions, color contamination, and blobs after filament swaps. 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 color change and purge problems
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

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

Optional visual proof

Add before and after photos for this report

Photos stay in this open page only and are never stored or uploaded. They appear in the printed report while the page remains open.

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. 1
    Document the failure and confirm that it matches this guide: New color mixes with the old, the restart is weak, or a blob forms at the change.Not completed
  2. 2
    Return extreme overrides to a known printer, nozzle, material, and slicer profile so the diagnosis starts from a stable baseline.Not completed
  3. 3
    Check insufficient purge. Purge until color is stable.Not completed
  4. 4
    Check restart pressure not restored. Restore pressure with a prime line.Not completed
  5. 5
    Inspect temperature mismatch. Use compatible temperatures.Not completed
  6. 6
    Rule out change location poorly chosen. Place the change at an intentional layer.Not completed
  7. 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. 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
Small representative test print
Setup
Use the same printer, material, slicer and key settings as the failed model.
Pass
The original symptom is absent and the target feature is repeatable.
If unchanged
The symptom remains in the same location or stage.
Use the evidence, not guesswork

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

Return to Workshop Mode →
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