modeling thread

[troy06]

Does anyone know of a good way to accurately depict the beginning of an internal thread using Pro Engineer wildfire 2.0? I have created a helical sweep but the end of the thread isn't exactly how it would appear. See attatched photo.

 

[looslib]

If you create a detailed thread, doesn't it do the thread accurately?
My guess is you haven't carried the sweep far enough to get to the top surface.


"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli

 

[fighterpilot]

Extend your direction vector line past the top surface of the part and it should be OK.

--
Fighter Pilot
Manufacturing Engineer

 

[cadcamguy]

just like cutting it on a lathe.. you have to lead into it

 

[fegenbush]

I think the previous posts are accurate, but do not necessarily detail how to fix your problem.

In order to show the thread using one feature, it will need to be a cut. It seems you have created it as a solid/boss. In order to transition it properly, create an extrusion or revolution at the desired point to cut the threaded portion. This may involve extending the threaded portion above where it is currently placed and cut it.

I hope this has been helpful.

Fegenbush