Mirror a threading tool path creates a left hand thread

[Matt1911]

We are making a part on a 5 axis, that has a female pipe thread on both sides. We mirrored the tool paths from one side to the other. I got the entire assembly together and went to put in a pipe plug to pressure test, and the one side has left hand pipe threads.  Took me a minute to figure out why one side went in and the other just wouldn't start. 

[davebYYPCU]

Mirror did what you asked for, 

Rectangle Pattern will do what you need.

Might help....

[Matt1911 · Accepted solution]

Linear\ rectangle pattern wouldn't work, but Circular Pattern did it. Still seems dumb to exactly mirror a thread tool path

[davebYYPCU]

What will a guy wanting / needing a left-handed thread (there) be thinking about now? 

How come it's right-handed?