NX Unexplained collision in internal turning operation.

When turning an internal diameter, verification with collision check may give a false collision warning.

Solution

The problem occurs when 'Tool Display' is set to 'Tool' 
As a workaround, switch 'Tool Display' to 'Assembly', and then no collision is detected. 

Notes and References

PR 9816426

Hardware/Software Configuration

Platform: INTL64
OS: windows
OS Version: 10_1507
Product: NX
Application: CAM
Version: V1919
Function: TURNING

Ref: 001-9816426