§ VALIDATION · AMBER OR RED

NEEDLE_DEFLECTION_RISK

The design/material/setup combination is likely to cause needle deflection or breakage.

Machine stress and material riskDeterministic rule
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What it means

The design/material/setup combination is likely to cause needle deflection or breakage.

Why it matters

This is both a quality and machine-safety issue.

Common triggers

  • dense short stitches on hard substrate
  • repeated penetrations

Typical fixes

  • change needle
  • reduce density
  • test stitch

Notes

  • Useful for advanced production contexts.

Plan references

  • plan/57-context-aware-validation-matrix.md