Tools | Tool data
4
4.2 Tool data
Requirements for tool compensation
You usually program the coordinates of path contours as they are
dimensioned in the workpiece drawing. To allow the control to
calculate the tool center path (i.e. the tool compensation) you must
also enter the length and radius of each tool you are using.
You can enter tool data either directly in the NC program with TOOL
DEF or separately in a tool tables. In a tool table, you can also enter
additional data for the specific tool. The control will consider all the
data entered for the tool when executing the NC program.
Tool number, tool name
Each tool is identified by a number between 0 and 32767. If you are
working with tool tables, you can also enter a tool name for each
tool. Tool names can have up to 32 characters.
Permitted characters: # $ % & , - _ . 0 1 2 3 4 5 6 7 8 9 @
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
The control automatically replaces lowercase letters with
corresponding uppercase letters during saving.
Impermissible characters: <blank space> ! " ‘ ( ) * + : ; < =
> ? [ / ] ^ ` { | } ~
The tool number 0 is automatically defined as the zero tool with the
length L=0 and the radius R=0. In tool tables, tool T0 should also be
defined with L=0 and R=0.
Tool length L
Always enter the tool length L as an absolute value based on the tool
reference point.
The absolute tool length is essential for the control in
order to perform numerous functions (e.g., material
removal simulation or Dynamic Collision Monitoring
(DCM)).
The absolute length of the touch probe is always
referenced to the tool reference point. The machine
tool builder usually defines the spindle nose as the tool
reference point.
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HEIDENHAIN | TNC620 | Klartext Programming User's Manual | 01/2022
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