HEIDENHAIN TNC 407 (280 580) User Manual User Manual
Page 303
TNC 425/TNC 415 B/TNC 407
9-36
9
3D Touch Probe Systems
Digitizing with a Measuring Touch Probe
Input data
• LINE DIRECTION
Coordinate axis of the X/Y plane parallel to which the touch probe
scans the model. The digitizing direction at the same time defines
whether the subsequent machining operation is performed by up-cut
or climb milling.
• SCANNING ANGLE
Traversing direction of the touch probe referenced to the LINE
DIRECTION. By combining LINE DIRECTION and SCANNING ANGLE
you can set the digitizing direction as desired.
Input range: –90° to +90°
• HEIGHT FOR FEED RATE DECREASE
Z coordinate at which the touch probe feed rate is reduced from rapid
traverse to the probing feed rate at the beginning of each line.
Input range: –99999.9999 to +99999.9999
• FEED RATE F
Enter the digitizing speed.
Input range: 1 to 3000 mm/min
The greater the digitizing speed, the less accurate the data resulting
from digitizing will be.
• MIN. LINE SPACING
If you enter an input value that is smaller than the programmed LINE
SPACING the TNC decreases the spacing between the scanned lines
to the programmed minimum for digitizing steep sections of a con-
tour. This ensures that the density of digitized positions remains
constant even if complex surface structures are scanned.
Input range: 0 to 20 mm
• LINE SPACING
The offset by which the probe moves at the end of each line before
scanning the next line.
Input range: 0 to 20 mm
• MAX. PROBE POINT INTERVAL
Maximum spacing between consecutive digitized positions.
Input range: 0.02 to 20 m
• TOLERANCE
The TNC only stores digitized positions whose distance from a straight
line defined by the last two probe points exceeds the programmed
tolerance. This way a high density of digitized positions is output for
contours with sharply curved surfaces while as few positions as
possible are stored for contours with flat surfaces. The input value 0
means that the digitized positions are output in the programmed
probe point interval.
Input range: 0 to 0.9999 mm