NX Setting up NX and Post Builder to Output Incremental Motion

What needs to be done to post Incremental motion from a Post Builder post? By default all motion is Absolute. Notice the differences in the XYZ motion after the G91 command, as seen below.

Solution

1. In this sample program an absolute move was added before switching to inremental. This was done in the Start of Path Events by adding a Start_Motion_Marker followed up with a Set Modes Increment command.

2. The Set Mode menu would look as follows when complete.

3. At the end of the program the output is switched back to absolute output. This is done in the End of Path Events by adding a Set Modes Absolute command followed up with the End_Motion_Marker. The End_Motion_Marker is added so that an absolute move is output at the end of the operation.

4. Switch back to Absolute output using the following settings.

5. Check the This rotary axis can be incremental setting On in both the Post Builder -> Machine Tool -> Fourth and the Fifth Axis if incremental rotary motion is needed.

Notes and References

Hardware/Software Configuration

Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: CAM
Version: V1938
Function: POSTBUILDER

Ref: 001-9814862