HEIDENHAIN TNC 640 User Manual page 157

Fundamentals, File Management | Fundamentals
With the shown positioning blocks with vectors, 3-D tool
compensation is possible with compensation values DL,
DR and DR2 from the TOOL CALL block.
The methods of function of the compensation values
depend on the type of tool.
The control detects the various tool types with the
columns L, R and R2 of the tool table:
R2 + DR2
TAB
→ end mill
R2 + DR2
TAB
→ radius cutter or ball cutter
0 < R2 + DR2
TAB
DR
PROG
→ toroid cutter or toroidal cutter
Without the TCPM function or miscellaneous function
M128, orientation of the tool coordinate system and
input coordinate system is identical.
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
+ DR2 = 0
TAB PROG
+ DR2 = R + DR
TAB PROG TAB
+ DR2 < R
TAB PROG TAB
+ DR
TAB PROG
+ DR +
TAB
4
DL+
DR+
DR-
DL-
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