18.1 Programming with two tool holders
You always program in the basic coordinate system (workpiece coordinate system of the first
tool holder). You do not have to take into account in which tool holder the tool is inserted.
Tool on the second tool holder
If a tool on the second tool holder is selected, the X and Y axes are mirrored and the main
spindle and counterspindle are offset (rotated) through 180°.
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In the simulation, the tool is always displayed on the correct side, just the same as it is used at
the machine.
The programmed C offset around 180° only affects C axes, not spindles.
It is not possible to machine a thread with tools that are distributed between both tool holders.
G code programming
The following points must be taken into account for G code programming:
● After a tool change, tool mirroring on the second tool holder is automatically activated.
● When a TRANSMIT command is programmed, tool mirroring on the second tool holder is
automatically activated.
Working with two tool carriers
18.1 Programming with two tool holders
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890 Operating Manual, 06/2019, A5E44903486B AB
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