HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 290)

9-23 TNC 425/TNC 415 B/TNC 407
9 3D Touch Probe Systems
9.4 Digitizing with a Measuring Touch Probe (Optional; not on TNC 407)
The digitizing option enables you to reduce a three dimensional part
model into discrete digital information by scanning it with the TM 110
measuring 3D touch probe.
The following components are required for digitizing:
• Measuring touch probe
• The "Digitizing option" software module in the TNC
• External data storage:
PC (IBM or compatible) with HEIDENHAIN TNC.EXE data transfer
software
• SUSA evaluation software from HEIDENHAIN for further processing of
the data digitized in the MEANDER cycle.
The measuring touch probe provides five digitizing cycles:
• TCH PROBE 5.0 RANGE
• TCH PROBE 15.0 RANGE (TABLE)
• TCH PROBE 16.0 MEANDER
• TCH PROBE 17.0 CONTOUR LINES
• TCH PROBE 18.0 LINE
• The TNC and the machine tool must be readied by the machine tool builder for the use of a measuring touch
probe.
• The touch probe must be calibrated before digitizing (see page 9-7).
• If you are working alternately with triggering and measuring touch probe systems, ensure that
– you have selected the correct touch probe in MP 6200 (see page 12-4)
– the measuring and triggering touch probes are never connected to the TNC at the same time. The TNC
cannot determine which of the touch probes is actually inserted in the spindle.
Principle
The touch probe scans a 3D surface point for point in a selectable grid at
the scanning speed programmed in the scanning cycle. You can enter a
scanning speed of up to 3000 mm/min.
The TNC transmits the digitized positions as straight-line blocks in
HEIDENHAIN format. The interface function PRINT (see page 11-6)
determines where the blocks are stored:
• Program memory of the TNC
• External storage via RS-232 interface
• External storage via RS-422 interface
• Digitizing cycles are programmed only for the main axes X, Y and Z and for the rotary axes A, B, and C.
• Coordinate transformations or a basic rotation must not be active during digitizing.
• The TNC outputs the BLK FORM as part of the surface data file, enlarging the blank form defined in the
RANGE cycle by twice the value from MP 6310 (see page 12-5).
• Choose the highest possible data transfer speed for the transfer of the digitized data to the PC. Where the
probe point intervals are very small, the TNC will reduce the speed accordingly so that the data may be
transferred.