Milling machines are an essential tool in any machine shop and their calibration is equally important. The quality of the parts made by a mill depends on two factors: one, the skill of the machinist, and two, the condition of the equipment used. The bed of the mill can sometimes be overlooked, and imperfections in it can cause quality issues in the tolerances or finish of parts produced. Out-of-flatness or levelness is one of the main causes of product imperfection. The bed is the machinist’s surface of reference and a quick and simple Levelness/Flatness check can ensure that the bed is in optimal condition to allow the machinist to create high precision parts.
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Geometric Measurement by Carlos Bienes CRL