V-Wheel Adjustment: Too Tight or Too Loose

Document the failure and confirm that it matches this guide: The carriage wobbles, wheels spin freely without contact, or motion feels notchy.

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

Check eccentric nut too loose. Check carriage play.

Check eccentric nut too tight. Rotate eccentric nut minimally.

Inspect worn wheel surface. Inspect wheels for flat spots.

Rule out dirty extrusion track. Clean the extrusion track.

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

Compare the test against the target condition, record the successful value, and save it in a printer/material profile before repeating the full print.