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Investment Casting Design Spec Considerations - addresses nine common casting specifications.

Drafting Practices and Standards Manual
The most comprehensive, up-to-date encyclopedia of mechanical drafting information available anywhere.

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  6.4 - Datums
  6.5 - Position, Concentricity, and Symmetry
  6.5.1 - Verifying Dimensional Requirements
  6.5.2 - Advantages of Positional Tolerancing
  6.5.3 - Formulas for Positional Tolerancing
  6.5.4 - Certification as a GD&T Professional
  6.6 - Form, Orientation, Profile, and Runout

• Check out this new tip addressing design consideration specs for precision investment casting.
  
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