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Tool radius r, Delta values for lengths and radii, Entering tool data into the program – HEIDENHAIN TNC 410 ISO Programming User Manual

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5 Programming: Tools

5.2 T

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Tool radius R

You can enter the tool radius R directly.

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 with T.

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 T block, you
can also assign the values to Q parameters.

Input range: You can enter a delta value with up to ± 99.999 mm.

Entering tool data into the program

The number, length and radius of a specific tool is defined in the G99
block of the part program.

U

U

U

U

Select tool definition. Confirm your entry with the ENT

key.

U

U

U

U

Enter the Tool number: Each tool is uniquely identified

by its number.

U

U

U

U

Enter the tool length: Enter the compensation value

for the tool length.

U

U

U

U

Enter the Tool radius.

Resulting NC block:

DR<0

DR>0

DL<0

R

DL>0

L

R

In the programming dialog, you can transfer the value for
tool length directly into the input line.

TNC 426, TNC 430:

Press the actual-position-capture key. You only need to
make sure that the highlight in the status display is placed
on the tool axis.

TNC 410:

Press the ACT. POS. Z soft key.

N40 G99 T5 L+10 R+5 *

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