I have a customer that is using a single point thread mill to create a tapered thread.
There is a nice video that shows how this may be achieved, It uses a Fixed Contour operation.
(I couldn’t see who posted it)
The problem I am having is using any type of tool other than a T-slot tool, which I guess is fair enough as Fixed Contour Operations are not really designed for threading.
Is there a way around this?
Have I missed a more obvious way of thread milling a tapered holes?
NX CAM Consultant
Note that (I think) in the thread mill operations, only the taper angles in the thread specs are supported. (i.e. you can't arbitrarily set the taper angle)
This was last discussed "a while" ago, so something may have changed in more recent versions.
(although "nx502_Threaded_Hole_Standard.xml" doesn't seem to have the taper angle as a parameter, so I'm guessing not...)
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Using the thread milling operations in NX 10 and above for NPT thread with an NPT thread mill will automatically create the tool path with the correct conical angle, see this thread.
Based on that information we have no problem creating NPT threads.
I think that CAM is still using the old thd_metric.dat and thd_english.dat files to get the thread information, so you might have to keep them in sync with the new XML file introduced in NX 5.
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Thanks, I'm getting there with this now.... although not sure why a single point threading tool is displayed as if it were a t-slot cutter. I can live with that.
Tool geometry aside.
I was having problems with the general MO of Holemaking where threadmilling is concerned because I thought that I should use the From Table method when there was no thread modeled and it was generating a lot of errors.
Should the From Table method only be used when it is necessary to use a wireframe circle/arc ?