Wire Harness, Cable & Electromechanical Assembly worked example

Test Fixture Payback with test fixture build & tooling cost of 62,500 $: a worked example

What does the result look like when test fixture build & tooling cost reaches 62,500 $? The full calculation is worked below with real intermediate numbers. Use it when test fixture payback in wire harness, cable and electromechanical assembly is being compared against another wire harness, cable and electromechanical assembly project for the same budget.

The inputs for this scenario

  • Test fixture build & tooling cost: 62,500 $ (raised for this scenario; the documented default is 25,000)
  • Annual labor & scrap savings from fixture: 18,000 $ / yr (unchanged)
  • Annual fixture maintenance & calibration cost: 2,500 $ / yr (unchanged)

Working through the calculation

  • Applying the documented formula (Net annual test fixture payback savings = annual test fixture payback savings - annual test fixture payback support cost) to the inputs above produces each figure below.
  • At this operating point the engine returns 4.03 yr for test fixture payback payback period, the number this scenario is built around.
  • At this operating point the engine returns 15,500 $ / yr for net annual test fixture payback savings.
  • At this operating point the engine returns 62,500 $ for test fixture payback investment.
  • At this operating point the engine returns 15,000 $ for five-year net test fixture payback value.

How this compares with the baseline

  • Against the tool's baseline example, where test fixture build & tooling cost sits at 25,000 $ and the headline result is 1.61 yr, this scenario comes in 150% above the baseline at 4.03 yr.
  • A figure at this level is achievable when test fixture build & tooling cost is genuinely sustained, not just peaked for a shift. It assumes savings and support costs are steady each year; a program that ramps down or a fixture that needs a mid-life rebuild will shift the real payback.

Results at a glance

  • Test fixture payback payback period: 4.03 yr (headline result)
  • Net annual test fixture payback savings: 15,500 $ / yr
  • Test fixture payback investment: 62,500 $
  • Five-year net test fixture payback value: 15,000 $

Run it with your numbers

  • Every input above is editable in the live Test Fixture Payback calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.