Segmented Bowl Calculator
Calculate segment miter angle and inner/outer segment lengths for a segmented turning ring.
Results
Segments
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Cut angle per end
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Outer-face segment length
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Inner-face segment length
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Approx. inner diameter
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Use the result as a planning estimate and verify project-specific measurements, manufacturer information and local requirements where relevant.
How it works
A ring of n equal segments uses an end angle of 180°/n. Segment face lengths are calculated from the across-flats diameter and the tangent of that angle.
segment face length = diameter × tan(180° ÷ segments)Limitations
- This treats the entered diameter as the polygon diameter across flats. Glue-line cleanup, turning allowance and stock preparation require additional material.