HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 324)

HEIDENHAIN TNC 410, TNC 426, TNC 430 309
To find the angle between the angle reference axis and
a side of the workpiece:
ú Select the touch probe function: Press the PROBING
ROT soft key
ú Rotation angle: If you will need the current basic
rotation later, write down the value that appears under
Rotation angle.
ú Make a basic rotation with the side of the workpiece
(see “Compensating workpiece misalignment”).
ú Press the PROBING ROT soft key to display the angle
between the angle reference axis and the side of the
workpiece as the rotation angle.
ú Cancel the basic rotation, or restore the previous basic
rotation:
ú This is done by setting the Rotation angle to the value
that you wrote down previously.
To measure the angle between two workpiece sides:
ú Select the probing function by pressing the PROBING ROT soft
key.
ú Rotation angle: If you will need the current basic rotation later,
write down the value that appears under Rotation
angle.
ú Make a basic rotation for the first side (see “Compensating
workpiece misalignment”).
ú Probe the second side as for a basic rotation, but do not set the
Rotation angle to zero!
ú Press the PROBING ROT soft key to display the angle PA between
the two sides as the Rotation angle.
ú Cancel the basic rotation, or restore the previous basic rotation by
setting the Rotation angle to the value that you wrote down
previously.
PA
–10
100
α ?
α ?
L?
X
Z
Y
100
12.3 Measur
ing W
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rkpieces with a 3-D
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P
robe
Okap12.pm6 29.06.2006, 08:06 309