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THE FEUTEX TOOLKIT

Three-Part Tolerance Stack

Compare worst-case and root-sum-square assembly tolerance.

Manufacturing workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaAssembly=A+B−C; worst-case=Σti; RSS=√Σti².
Sources and model references

How to use this tool

  1. Enter every input in the labeled units; use measured or independently specified properties.
  2. Check the stated model assumptions before calculating.
  3. Interpret the output as a model estimate and verify it independently for the intended application.

Try this example

{
  "a": 10,
  "b": 20,
  "c": 5,
  "ta": 0.1,
  "tb": 0.2,
  "tc": 0.1
}

Accuracy and scope

RSS assumes independent centered component variation with consistent statistical interpretation; worst-case tolerance limits are not standard deviations. Educational engineering estimate only; not structural or safety certification, equipment selection, or operating recommendations.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.