HEIDENHAIN ND 100 User Manual - Manual (Page 36)

36 1 Operation
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1.4 Measuring Part Features
Part features
Features are measured by probing data points that characterize the
dimensional geometry of the part. For example, several points probed
around the circumference of a circle results in numeric and graphic
representations of the circle geometry. Throughout this manual, a
measured geometry is referred to as a feature and can alternately be
displayed numerically or graphically by pressing the View soft key.
There are several types of features and each has different dimensional
information. For example, a circle has a center point position and a
radius, a point has a position, and an angle has degrees.
Feature list
Each feature is added to the feature list when it is measured. The
feature list shows all features measured on the left side of the LCD
screen and is visible in DRO and measuring modes. Each feature is
identified by a number and an icon indicating its type (i.e. circle, line,
etc.). Up to 100 features can be added to the feature list. Use the
Arrow
keys to scroll through the list. Highlight the desired feature to
recall or send the feature data to a computer. Select parent features
from the feature list to construct new features. Delete features using
the CANCEL key or by pressing the MENU key and then the Clear soft
key. In general, the user should delete old features, datums, and
skews from the feature list before each new measurement session.
Probing part features
Part features are probed with crosshairs.
Probing with crosshairs
 Move the stage to position the crosshairs over the desired feature
point and press the ENTER key. The probed point will be added to the
points required for the feature.
Feature displayed numerically Feature displayed graphically