
KinetiC-NC
User Manual
CNC-STEP GmbH & Co. KG ▪ Siemensstrasse 13-15 ▪ 47608 Geldern ▪ Germany
Page 102
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10.11.2018
Si mpl e entry in the list
The manual change with tool holder does not require special macros or other adjustments if you
enter the tool lengths manually in the tool list (Configuration -> Tools -> Change -> Length 1). If
you have a length scanner, you can install and customize the G79 macro as described above.
However, it is not invoked every time a tool is changed, but only when needed, either via the MDI
input or by selecting the option "with length measurement" in the tool change dialog (main window,
"tool change" button, left). As described above, you must also make sure that the tool length
compensation (G43) is active.
A u t o ma t i c t o o l c h a n g e ( d i r e c t )
If the tool spindle has a pneumatically or hydraulically operated mechanism with which the collet
can be opened and closed without manual intervention, an automatic change of the tool is possible.
Of course, this also requires a magazine in which several tools can be stored.
Magazi ne types
There are fixed (linear) magazines in which each tool is picked up at a different position by utilizing
the X, Y and Z positioning of the spindle, or moving magazines (revolvers) where the pickup is
always at the same X / Y / Z position, but there is an additional drive to select the tool.
Since the exact position of the tool is not always the same when changing directly into the collet, a
length measurement must be carried out after every change. A length measuring probe is therefore
necessary in every case. The setting in "Configuration -> Machine -> General" must be set to "Tool
change automatic".
The M6 and G79 mac ro
For the actual tool change, an M6 macro must be installed and adapted, for the length measurement
the G79 macro. Special programming is required to program the automatic change. The Reference
Guide lists examples of macros for each simple linear and revolver magazine. Even more
complicated systems, for example linear magazines with several rows or revolvers with additional
robot arm are conceivable. However, it is recommended that you seek professional help in
programming and adjusting such changer systems.