Private on-device repair evidence

Z-Banding and Repeating Layer Lines

Diagnose repeating horizontal bands, wobble, lead-screw artifacts, and periodic surface variation.

Not started0 of 7 stepsNot yet saved

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

Before repairChoose a photo After proof testChoose a photo

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

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

Repair sequence

1
Measure the vertical distance between bands.Not completed
2
Check Z screws for dirt, damage, and proper lubrication according to manufacturer guidance.Not completed
3
Inspect couplers and mounts; do not force a lead screw into misalignment.Not completed
4
Check gantry, wheels/rails, and Z synchronization.Not completed
5
Watch spool and extruder gear rotation for periodic resistance.Not completed
6
Review temperature graph for oscillation and run manufacturer PID calibration if needed.Not completed
7
Print a simple vase/column at conservative speed to isolate mechanics from model complexity.Not completed

Private workshop notes

No notes recorded.

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.

Matched next step

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