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6.2.1 Notes on the Axes and Coefficients Programmed
The sum of coefficients with degrees above zero must be equal to the relative
movement of the axis in the block.
REMARK It should be noted that no messages are sent if an error occurs in the
sum of coefficients.
The coefficients are expressed in:
- mm (or inches if G70 is active) for linear axes,
- degrees for rotary axes.
In a given polynomial interpolation block:
- certain axes can be programmed with different degrees,
- linear interpolation can be programmed.
Example:
N..
N80 G01 X0 Y5 Z-5
N90 X20/9.5/22/-11.5 Y10/18/-33/20 Z10
N..
The Z axis is interpolated linearly.
6.2.2 Geometric Transformations
All the following geometric transformations can be applied to the curve:
- programmed offset (G59),
- mirroring (G51 ...),
- scaling factor (G74),
- angular offset (ED..).
REMARK To make an angular offset, both axes of the interpolation plane must be
programmed and must have the same number of coefficients. The
polynomial for one axis may have to be padded out with coefficients
whose value is zero so that it has the same number of coefficients as
the other axis of the plane. If this is not the case, the system returns
error message 133.
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