CAD Tools

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Calculators

(Radius) from (sagitta as a percentage) & (chord length)

Handy when working with pushing the limits of minimum crown criteria. I didn't invent this equation but I'm the first I know of to adapt it to JavaScript.

Crown Percentage:
Chord Length:
Radius:

This image is a visual example of a solution from this calculator. Input crown percentage of 25, then chord length of 225 and click calculate. The radius of the surface you want needs to be a maximum of 140.625 to achieve 25% crown.