Calypso’s Circular Pitch
Mark Boucher Mark Boucher

Calypso’s Circular Pitch

Excerpt from the Calypso Handbook

CALYPSO determines the circular pitch for all features and outputs the results either to CALYPSO or according to DIN 3960.

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Flatness - GD&T and Calypso Rev 3 Book
Mark Boucher Mark Boucher

Flatness - GD&T and Calypso Rev 3 Book

Flatness (form tolerance): the tolerance zone is limited by two parallel planes a distance t apart.

Implies: Straightness of the surface or Straightness of the derived median line

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Calypso - Blind Hole Depth
Mark Boucher Mark Boucher

Calypso - Blind Hole Depth

This is an excerpt from the Calypso Handbook

To measure the depth of a blind hole we must calculate the depth by using this process.

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Form Datum - Calypso
Mark Boucher Mark Boucher

Form Datum - Calypso

What the Form Datum does is establish a FUNCTIONAL Datum Reference Frame coordinate system, similar to if you were setting up the primary, secondary, and tertiary datums on a functional checking gage. This is ONLY for a datum reference frame and does not modify how the base and secondary alignments evaluate their respective coordinate system. In the screen shot below, you can notice the different origin points are for a base alignment and datum reference frame.

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