Heidenhain TNC 640 (34059x-04) Cycle programming Manual do Utilizador Página 556

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Touch Probe Cycles: Automatic Kinematics Measurement
19.4 MEASURE KINEMATICS (Cycle 451, DIN/ISO: G451, option)
19
556
TNC 640 | User's Manual Cycle Programming | 3/2014
Positioning direction
The positioning direction of the rotary axis to be measured is
determined from the start angle and the end angle that you define
in the cycle. A reference measurement is automatically performed
at 0°.
Specify the start and end angles to ensure that the same position
is not measured twice. A duplicated point measurement (e.g.
measuring positions +90° and –270°) is not advisable, but it does
not cause an error message.
Example: Start angle = +90°, end angle = –90°
Start angle = +90°
End angle = –90°
No. of measuring points = 4
Stepping angle resulting from the calculation = (–90 – +90) /
(4 – 1) = –60°
Measuring point 1 = +90°
Measuring point 2 = +30°
Measuring point 3 = –30°
Measuring point 4 = –90°
Example: start angle = +90°, end angle = +270°
Start angle = +90°
End angle = +270°
No. of measuring points = 4
Stepping angle resulting from the calculation = (270 – 90) / (4
– 1) = +60°
Measuring point 1 = +90°
Measuring point 2 = +150°
Measuring point 3 = +21
Measuring point 4 = +270°
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