Tools | Tool data
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HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017
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Delta values for lengths and radii
Delta values are offsets in the length and radius of a tool.
A positive delta value describes a tool oversize (DL, DR>0). If you
are programming the machining data with an allowance, enter the
oversize value in the TOOL CALL.
A negative delta value describes a tool undersize (DL, DR<0). An
undersize is entered in the tool table for wear.
Delta values are usually entered as numerical values. In a TOOL
CALL block, you can also assign the values to Q parameters.
Input range: You can enter a delta value with up to ± 99.999 mm.
Delta values from the tool table influence the graphical
representation of the clearing simulation.
Delta values from the TOOL CALL block do not change
the represented size of the tool during the simulation.
However, the programmed delta values move the tool
by the defined value in the simulation.
Delta values from the TOOL CALL block influence the
position display depending on the optional machine
parameter progToolCallDL (no. 124501).
Entering tool data into the NC program
Refer to your machine manual.
The machine tool builder determines the scope of
functions of the TOOL DEF function.
The number, length and radius of a specific tool is defined in the
TOOL DEF block of the part program:
Select the tool definition: Press the TOOL DEF key
Tool number: Each tool is uniquely identified by
its tool number
Tool length: Compensation value for the tool
length
Tool radius: Compensation value for the tool
radius
In the programming dialog, you can transfer the value
for tool length and tool radius directly into the input line
by pressing the desired axis soft key.
Example
4 TOOL DEF 5 L+10 R+5
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