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  1. chetanchimate

    Calculate flatness using a set of points

    I want to find the flatness error manually without using computer. The least square method is what most CMM software use (and also ISO 1101 standard) to calculate flatness error. I have 'n' number of points. Pi = (Xi, Yi, Zi) where i = 1, 2, 3 ... n I fit a least square plane ax + by + cz = d...

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