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Dimensional Measurements

  • Surface Plates – The Types, Use, and Calibration

    April 29, 2019

      Surface plates provide a flat plane used as a horizontal reference point for your dimensional measurements. They can be made from granite, metal, cast iron, or glass. Granite is considered to be the best material for a surface plate due to its surface hardness, low thermal expansion, no rust or corrosion, little warping, and […]

  • Levels of Precision: A Field Guide to Dimensional Gages

    Levels of Precision: A Field Guide to Dimensional Gages

    July 31, 2014

    Conceptually, the dimensional measurement process is quite simple. You get a drawing for a part-an electronic computer-aided design (CAD) file, blueprint, napkin doodle or whatever – which indicates certain critical part dimensions and tolerances: a particular diameter, for instance, must be 2.2370 inches + 0.0002 inch. All the manufacturer needs to do is to machine […]

  • Surface Plates: The Foundation of your Dimensional Measurements

    Surface Plates: The Foundation of your Dimensional Measurements

    March 28, 2014

    A surface plate is a solid, flat plate used as the main horizontal reference plane for precision inspection. They are often used as the baseline for all measurements to the particular piece being produced. The surface is required for quality purposes to be extremely flat with accuracy up to 0.00001 inch or 250 nm for […]