© Siemens AG All rights reserved. SINUMERIK, Manual, 5-axis machining
Key functions for 5-axis machining
3.5
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Further types of interpolation
Path-related interpolation
ORIPATH Tool orientation in relation to the path. A plane is created from the
normal vector and path tangent that defines the meaning of LEAD
and TILT at the end point. In other words, the path reference only
applies to the definition of the end orientation vector. Large circle
interpolation is performed between the start and end orientations.
LEAD and TILT do not merely provide the lead and tilt angles.
They have the following significance:
LEAD defines the rotation in the plane created by the normal vec-
tor and path tangent.
TILT then defines the rotation around the normal vector. In other
words, they correspond to theta and phi in a sphere coordinate
system, with the normal vector serving as the Z axis and the tan-
gent as the X axis.
TIP:
If the path features corners, the path tangent will inevitably involve
bends. These bends are reflected in the orientation on a 1:1 basis!
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