Repair workspace

Lead Screw Wobble and Z Artifacts

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Fast answer

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Start with observe the screw while moving z, then check coupler seating. Confirm the result with a short representative test before changing additional settings.

Motion & MechanicsModerate12 min

Progress

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Ordered repair sequence

Step 1

Document the failure and confirm that it matches this guide: Repeating bands appear at a pitch related to the lead screw rotation.

Step 2

Return extreme overrides to a known printer, nozzle, material, and slicer profile so the diagnosis starts from a stable baseline.

Step 3

Check bent lead screw. Observe the screw while moving Z.

Step 4

Check rigid misalignment. Check coupler seating.

Step 5

Inspect dirty or damaged threads. Clean threads.

Step 6

Rule out top constraint installed incorrectly. Follow printer-specific top-support design.

Step 7

Change only the single setting or hardware condition supported by the evidence, then run a small test that reproduces the original failure.

Step 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.

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