HEIDENHAIN TNC 426 PB/M Technical Manual page 386

Step 4c
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Position B = -90
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Probe surface Z
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Set Z = 0
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Position B = +90
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Probe surface Z
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MP7530.6 = –0.5 * determined value – MP7530.1
Step 5
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Probe surfaces X1, X2, Y2 and Z in a tilted working plane with the tilting angles B = –90, B = +90
and C = 180 (with MP7500 = %xxxxx0x)
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If there are differences between the individual tilting angles, the offsets from MP7530.0 and
MP7530.3 should be determined with a different process (steps 6 to 8), and the averages from both
processes should be entered in MP7530.0 and MP7530.3.
Step 6
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Probe surface Y2
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Set Y = 0
6 – 56 HEIDENHAIN Technical Manual TNC 426, TNC 430