Siemens SINUMERIK 828D Manual page 91

Important functions for 3- to 5-axis machining
As already mentioned, the lead and tilt angles are only defined in conjunction with the surface
normal vector. This is defined in the same way as the orientation vector with the components A4,
B4, C4 or A5, B5, C5: The first designate the normal vector at the start of the block, the latter at
the end of the block.
© Siemens AG All rights reserved SINUMERIK, Manual, Mold-Making with 3- to 5-Axis Simultaneous Milling
The surface normal vector is perpendicular
to the machining surface.
1
2
The start vector at the start of the block is
programmed with A4, B4, C4. The vector at
the end of the block is programmed with A5,
B5, C5.
3.5
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