HEIDENHAIN ND 1400 - Manual (Page 142)

128 QC-300 Series User’s Guide
Probe hit starts measure magic
Measure magic automatically selects a feature type, such as line or circle, based on the geometric orienta-
tion of probed data points. Measure magic can be started
manually by touching the measure magic icon prior to a mea-
surement, or started automatically when the first new probe
contact of a measurement occurs, thereby saving the user the
time required to press a panel button. Enable this automatic
function by toggling the Probe Hit Starts Magic choice field
to Yes.
Auto save UCS
A new user coordinate system (UCS) is the measurement reference frame established each time the user
creates a new datum. The new UCS is temporary until it is saved or replaced by another new UCS. The
UCS can be saved manually by touching the UCS icon in the top right corner
of the screen, or can be saved automatically each time a new datum operation
is performed by the operator. Enable this automatic function by toggling the
Auto save UCS choice field to Yes.
Distances
Distance measurements result in X, Y and L (vector) displacements. The Y-axis displacements can be
shown as signed or absolute (positive only) values. When signed values are specified, axis displacements
from right to left and from top to bottom are negative. Specify signed distances by toggling the Distances
choice field to Signed.
Enabling and configuring point filtration
Point filtration extracts aberrant data points from the total population of data during the least squares best fit
calculations of arc, circle and line features. Points are extracted when they exceed the specified error limit
(quantization factor) and fall outside the specified standard deviation range (Sigma factor). The filtration
process ends when all remaining data points satisfy the quantization or standard deviation requirement, or
when the minimum percentage of retained data points (proportion factor) is reached. Extracted data points
are highlighted in yellow in the View window. The last points retained are highlighted in red.