Rotational Molding worked example
Wall Thickness Estimate with defect severity rating of 15 score: a worked example
Push defect severity rating up to 15 score and the picture changes. This example computes every intermediate figure at that operating point. Use it when wall thickness estimate in rotational molding needs a defensible ranking against other rotational molding risks for the next review.
The inputs for this scenario
- Defect severity rating: 15 score (raised for this scenario; the documented default is 6)
- Defect occurrence likelihood rating: 4 score (unchanged)
- Detection difficulty rating: 3 score (unchanged)
Working through the calculation
- Applying the documented formula (Wall Thickness Estimate risk score = severity × 0.40 + occurrence × 0.35 + detection × 0.25) to the inputs above produces each figure below.
- At this operating point the engine returns 8.15 score for risk score, the number this scenario is built around.
- At this operating point the engine returns 15 score for severity.
- At this operating point the engine returns 4 score for occurrence.
- At this operating point the engine returns 3 score for detection.
How this compares with the baseline
- Against the tool's baseline example, where defect severity rating sits at 6 score and the headline result is 4.55 score, this scenario comes in 79.12% above the baseline at 8.15 score.
- It computes a weighted wall-thickness risk score by combining severity, occurrence, and detection ratings with fixed weights of 0.40, 0.35, and 0.25. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.
Results at a glance
- Risk score: 8.15 score (headline result)
- Severity: 15 score
- Occurrence: 4 score
- Detection: 3 score
Run it with your numbers
- Every input above is editable in the live Wall Thickness Estimate calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.