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Flange Alignment in Piping CAD: Offset, Angular Error, Bolt-Hole Rotation, and Fit-Up
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Stud Bolts vs. Machine Bolts in Flanged Piping: Assembly and CAD Documentation
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Elbow Geometry in Piping CAD: Tangent Points, End Planes, and Centers of Curvature
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Control Valve Station Layout in Piping CAD: Bypass, Isolation, Access, and Removal
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Pipe and Fitting Outside Dimensions in CAD: Why Nominal Size Does Not Define the Envelope
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Pipe Shoes, Saddles, and Wear Pads in CAD: Geometry, Load Path, and Documentation
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STD, XS, XXS, and Pipe Schedule: How Wall Designations Relate
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Piping CAD Catalogs vs. Project Specifications: Geometry, Selection Rules, and Data Control
