Machine Vision & Industrial Inspection AI worked example

Vision Rework Reduction at 54% rework prevention effectiveness: a worked example

This worked example runs the vision rework reduction numbers for a tougher week than the baseline: 54% rework prevention effectiveness instead of the typical 75%. Estimate the monthly rework cost savings from a machine vision system that catches defects at an earlier production stage, preventing defective parts from accumulating added labor value before being scrapped or reworked downstream.

The inputs for this scenario

  • Monthly rework volume prevented by the vision system: 280 parts / month (held at the documented default)
  • Rework cost avoided per part: 22.5 $ / part (held at the documented default)
  • Rework prevention effectiveness (share actually caught): 54 % (the input this scenario stresses; the baseline uses 75)
  • Fixed monthly rework-operations overhead removed: 650 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Variable rework savings = rework volume prevented x rework cost per part x prevention effectiveness.
  • Total monthly rework savings works out to 4,052 $ at these inputs, and this is the headline figure for the scenario.
  • Rework savings per inspected part works out to 14.47 $ / piece at these inputs.
  • Variable rework savings works out to 3,402 $ at these inputs.
  • Fixed overhead reduction works out to 650 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where rework prevention effectiveness sits at 75% and the headline result is 5,375 $, this scenario comes in 24.61% below the baseline at 4,052 $.
  • Use it when justifying a vision-system investment or reporting realized savings in a monthly operations review. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Total monthly rework savings: 4,052 $ (headline result)
  • Rework savings per inspected part: 14.47 $ / piece
  • Variable rework savings: 3,402 $
  • Fixed overhead reduction: 650 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Vision Rework Reduction calculator, set rework prevention effectiveness to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.