Turning an OD NPT Thread

[Tim Simmermon]

I am having trouble trying to figure out what I should turn the OD to for a 1/2-14 NPT taper thread. I know the pipe size is .840 and the taper angle is 1.783333 deg, but at the end of the piece what should the diameter be? I can find all the pitch diameter info, but none of the major OD info that I need to turn it too. It's probably really simple, but it's killing me! Any help would be appreciated.

 

Thanks

[Avs_Fan]

Go to Lathe Toolpath, Thread, Thread shape parmeters, Pick from table, select 1/2-14, use Draw Thread. Then, draw a line from small end of major dia. to large end of major dia. Trim your .840" line to that line. Maybe draw a chamfer at that start as well. Just using the tools that Mastercam provides!

[Tim Simmermon]

Thanks! I knew it would be easy!