HEIDENHAIN ND 1400 - Manual (Page 68)

54 QC-300 Series User’s Guide
Probing slots and rectangles
Five probed points are required to measure a slot or rectangle. The five
points must be probed in a clockwise or counterclockwise sequence.
As shown here, the correct pattern of points probed is:
• Two points well distributed along one long side, followed by
• One point on the closest end, followed by
• One point on the approximate center of the second long side,
followed by
• The last point on the remaining end
CAUTION
Probing a different sequence of points, or probing out of either clockwise or counter-
clockwise order will result in erroneous slot measurements.
Measure Magic does not recognize slots or rectangles and will assign the wrong feature type to the data.
The feature must be changed by selecting a slot or rectangle from a menu of alternatives in the DRO
screen.
Measurement results are shown in the Feature list, View screen and
DRO screen. The View screen shows the feature and the points used
to define it, the number of points probed, the coordinate location of the
center of the slot or rectangle, the length, the width, the angle of the
center line with respect to the skew axis, the reference frame and the
projection plane.
Touch the feature type... and change the feature... to a slot (or rectangle)
The required five points can be
probed in either direction