Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 627)

L-force | PLC Designer
General Editors

DMS 4.1 EN 03/2011 TD29 625
3D mode
In this mode of DIN66025 the user has the possibility to use three dimensional path
elements. So several points in the 3D space can be set and proceeded with 3D splines
or the CNC path contains arcs placed in space as desired. Lines in 3D mode can be
connected with 3D splines and so a smooth movement in 3D is possible. In different to
the 2,5-dimensional path elements, which uses X/Y coordinates, the path velocity and
acceleration relates on the movement in the coordinates X/Y/Z. (These Z axis has
become the same use as X and Y axis and so every movement can be implemented in Z
direction).
Main differences between 2.5D and 3D
• The velocity and acceleration definitions (F,E) are applied in different ways:
− in 3D: it is used for the velocity/acceleration on the path in 3D
− in 2.5D: it is used for the velocity/acceleration on the projection of the path in
X/Y plane.
• Splines in 3D are supported in 3D mode (G10) with a smooth Z-component. The
splines in 2.5D are not smoothed in Z direction.
• Circular arcs can be defined in 3D in every possible plane in space. In 2.5D this was
limited to the X/Y plane.
Example
N0G1 X1 Z100 F1
In 3D this movement will take about 100 seconds, because the length of the object is
icluding the Z component.
length = (1
2 + 100 2 ) 1/2
With velocity 1 it will take about 100 s. Hence, the velocity or the Z component will be
about 1.
In 2.5D this movement will take 1 second for calculating the length = 1. Hence, the
velocity on Z direction will be about 100.