HEIDENHAIN TNC 620, User Manual

Page: 229 / 521

Setup | Compensating workpiece misalignment with 3-D touch probe (option 17)
Comparison of offset and 3-D basic rotation
The following example shows how the two functions differ.
Offset 3-D basic rotation
Initial state
Position display:
Actual position
B
= 0
C
= 0
Preset table:
SPB
= 0
B_OFFS
= -30
C_OFFS
= +0
Initial state
Position display:
Actual position
B
= 0
C
= 0
Preset table:
SPB
= -30
B_OFFS
= +0
C_OFFS
= +0
Movement in +Z without tilting Movement in +Z without tilting
Movement in +Z with tilting
PLANE SPATIAL
with
SPA+0 SPB
+0 SPC+0
The orientation is not
correct !
Movement in +Z with tilting
PLANE SPATIAL
with
SPA+0
SPB+0 SPC+0
The orientation is correct!
The next machining step will
be correct .
HEIDENHAIN recommends using 3D basic rotation
because of its greater flexibility.
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HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022
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