Many of us already have ways to calculate these things one way or another, but this is handier than a pocket on a shirt. Rather spiffy, I must say. It does:
- Arcs - Calculates arc length, radius, angle in rads and degrees. When any combination (2 of 3) of information is known. Chord, height, radius.
- Angles - When the length of two sides are known (simple trigonometry).
- Compound miter - Saw settings for cutting molding on various wall angles and molding slopes.
- Dual slope compound miter - Settings for a box with different slope on sides than front and back.
- Springback - Predicted springback for glue-ups.
- Ellipse geometry - Distance between foci and string length, when semi-major and semi-minor axis is known.
- Proportion - Golden mean rectangle calculator.
- Cone geometry - Calculations for flattened cone and partial cone.
All tabbed neatly along the bottom of the spreadsheet.
It works in MS Works and a bigger version with great graphics works in Excel.
It is a freebie from our friends at Woodweb.com
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