3-Dimensional Coordinate Conversion; G68.1/69.1 - Mitsubishi Electric M700V Series Programming Manual

13. Program Support Functions

13.23 3-dimensional Coordinate Conversion; G68.1/69.1

Function and purpose
With the 3-dimensional coordinate conversion function, a new coordinate system can be defined
by rotating and moving in parallel the zero point in respect to the X, Y and Z axes of the currently
set workpiece coordinate system. By using this function, an arbitrary spatial plane can be defined,
and machining on that plane can be carried out with normal program commands.
An option is required to validate this function. If the 3-dimensional coordinate conversion is
commanded when the option is not added, a program error will occur.
When the G68.1 command is issued, the zero point is shifted by the command value (x, y, z) in
respect to the current local coordinate system. A new G68.1 program coordinate system rotated
by the designated rotation angle "r" in respect to the commanded rotation center direction (i, j, k)
is created.
The local coordinate system is the same as the workpiece coordinate system when the local
coordinate system offset is not ON.
13.23 3-dimensional Coordinate Conversion; G68.1/G69.1
Y
Machine coordinate
system
X
G68.1 program
Y'
coordinate system
Workpiece coordinate system
458
Z'
X'
Z