HEIDENHAIN TNC 640, User Manual, Page: 635 / 948

Multiple-Axis Machining | Three-dimensional tool compensation (option 9)
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
635
3-D compensation without TCPM
If the NC program includes surface normal vectors, the control
performs a 3-D compensation for three-axis machining. In this
case, the
RL/RR
radius compensation and
TCPM
or
M128
must
be inactive. The control displaces the tool in the direction of the
surface-normal vectors by the total of the delta values (from the
tool table and
TOOL CALL
).
The control generally uses the defined delta values
for 3-D tool compensation. The entire tool radius
R
+
DR
) is only taken into account if you have activated the
FUNCTION PROG PATH IS CONTOUR
function.
Further information: "Interpretation of the programmed
path", page 640
Example: Block format with surface-normal vectors
1 LN X+31.737 Y+21.954 Z+33.165NX+0.2637581 NY+0.0078922
NZ-0.8764339 F1000 M3
LN
: Straight line with 3-D compensation
X
,
Y
,
Z
: Compensated coordinates of the straight-line
end point
NX
,
NY
,
NZ
: Components of the surface-normal vector
F
:
Feed rate
M
: Miscellaneous function