Using Origins - Measuring Origins - Measuring a Sphere Origin
Measuring a Sphere Origin
A Three-Sphere Datum is defined
by three distinct locations taken around the part to be digitized or on a custom
jig placed in relationship to the part. The centers of the three spheres define
a plane which maps to the SOLIDWORKS Front Plane. Each sphere center also
defines additional characteristics of the alignment. The first sphere center
defines the location you wish to be mapped to the SOLIDWORKS origin. The second
sphere center defines the direction of the positive horizontal axis. The
third sphere center defines on which
side of the horizontal axis the positive vertical axis lays. For best results it is desirable to have the horizontal axis and vertical direction sphere centers create two lines through
the origin sphere that are nearly perpendicular to each other.
You must measure all three
spheres in the prescribed order each time you measure or re-measure
a Three-Sphere Datum.
To Measure a Three-Sphere
Datum
-
Access Alignment Manager
-
Right click on the Three-Sphere
Datum you wish to measure.
The Datum options pop-up menu
displays.
-
Select Measure.
RevWorks connects to the
digitizer and starts streaming data in digitizer coordinates.
-
Digitize a sphere, the center
of which is to be mapped to the SOLIDWORKS origin.
RevWorks automatically
calculates the translations necessary to translate the data collected in raw
device coordinates so that the center of the digitized origin sphere aligns with
the SOLIDWORKS model space origin.
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