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CAM2

2019

2018

FARO® Knowledge Base

Feature Reducibility in CAM2

CAM2-Beauty.png

Overview

Feature Reducibility is a term used to describe that one type of feature can be used like another type in some situations, even though the ‘reducible feature’ cannot be seen.

Download a PDF of this article:  MS002: Feature Reducibility

Reducible Feature Types

There are 3 ‘reducible’ feature types:

MS002Fig1.jpg Point: Is not 'feature reducible', nor does it have a vector (direction).
MS002Fig2.jpg

Line: Is not ‘feature reducible'.

The vector (direction) is shown by the arrow, and is determined by the 1st to 2nd point measured.

MS002Fig3.jpg

Plane: Is not 'feature reducible'.

The vector (direction) is shown by the arrows, relevant to the compensation direction when measured.

Reducible Features

All geometrical features contain at least one ‘reducible feature’ type, which are used as the ‘anchor’ for dimensions, coordinate systems, alignments & constructions. The following diagrams below shows by feature, it’s ‘reducible feature’ and where they are positioned.

Circle (Arc): 3 'Reducible' Features:
Point - at the center Plane - which it is projected onto Line - through the center, parallel to planes vector (GD&T datum only)
MS002Fig4.jpg MS002Fig5.jpg MS002Fig6.jpg
Round Slot: 3 'Reducible' Features:
Point - at the center Plane - which it is projected onto Line - from arc center to arc center
MS002Fig7.jpg MS002Fig8.jpg MS002Fig9.jpg
Rectangular Slot: 3 'Reducible' Features:
Point - at the center Plane - which it is projected onto Line - running center along length
MS002Fig10.jpg MS002Fig11.jpg MS002Fig12.jpg
Ellipse: 3 'Reducible' Features:
Point - at the center Plane - which it is projected onto Line - running center along length
MS002Fig13.jpg MS002Fig14.jpg MS002Fig15.jpg
Sphere: 1 'Reducible' Feature:
Point - at the center
MS002Fig16.jpg
Cylinder: 1 'Reducible' Feature:
Line - through the center
MS002Fig17.jpg
Cone: 2 'Reducible' Features:
Point - at the apex Line - through the center
MS002Fig18.jpg MS002Fig19.jpg
Torus: 2 'Reducible' Features:
Point - at the center Plane - parallel to the section center circle
MS002Fig20.jpg MS002Fig21.jpg

Therefore, when creating constructions, the option ‘treat as’ refers to the reducible feature.

MS002Fig22.jpg

See Also

 

Keywords:

Help Sheet, MS002