Comparison Of Offset And 3-D Basic Rotation - HEIDENHAIN TNC 620 User Manual

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
Initial state
Position display:
Actual position
B = 0
C = 0
Preset table:
SPB = 0
B_OFFS = -30
C_OFFS = +0
Movement in +Z without tilting
Movement in +Z with tilting
PLANE SPATIAL with SPA+0 SPB
+0 SPC+0
The orientation is not
correct!
HEIDENHAIN recommends using 3D basic rotation
because of its greater flexibility.
HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022
3-D basic rotation
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 with tilting
PLANE SPATIAL with SPA+0
SPB+0 SPC+0
The orientation is correct!
The next machining step will
be correct.
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