Drawing crashes when placing main view.

[gtprototype]

When I create a drawing, place the main view and click okay, the drawing disappears and returns me to the design file with Fusion indefinitely inoperative.  If I force quit and restart the behavior repeats.

85ff3938-50b9-480f-b83a-d154f8ea91d2,640,650

[jhackney1972]

Please open up the problem model and go the File, Export and save to your local drive.  Then attach it to your forum post using the Attachments section below.  The forum users can try and troubleshoot it for you.

[gtprototype]

I'm unable to share the model publicly.  Here is the screen cast I attempted to post at the start of the thread.

 

[jhackney1972]

Is this the only model that causes this issue?  Have you restarted Fusion 360 recently?  it is hard to tell anything from a screencast so this is as far as I can go with my guesses.

[gtprototype]

Yes, just this model.  With Fusion crashing over and over it takes awhile to troubleshoot.  By systematically deconstructing my model I've identified the problem.  The bonus is that, by simplifying, I now have a model to share.  The problem lies with the 1/8 NPT hole (Hole 3) that intersects the central bore (Hole 1).

[jhackney1972]

You are correct, it will not create a drawing but Fusion 360 does not crash for me.  If you create the NPT tapped hole "TO" the bore surface, there is no issue.  In practicality you would put a NPT tapped hole from the outside, on both sides to the bore, in order to get the threads on both sides.  With that arrangement, it works fine.  If you want to tag a support person about your post, create a message and use the "@"  function, shown in the Hint below to flag the one you want.  You can recognize these individuals because they have the Autodesk Logo in there log-in handle.  An example is:

[gtprototype]

Thanks John.  It's a valve body, I modeled it like it would be machined --drill through from the side that gets tapped since the other side vents to atmosphere.  Now that I'm not under pressure I did some more testing.  If I change to straight threads and offset the threads to control the thread depth, it places threads at the start and also were is meets the far side of the intersecting bore.  Seeing that exposes why the tapered threads fail because there is no definite starting point when it meets the opposite side of the intersecting bore.  With this new found discovery, I realized the simplest solution is to re-order the timeline so the threaded hole is created first and it works just fine.

@jeff_strater 

In short, the model is correct however, the drawing crashes because Fusion wants to start threads every time it hits a new surface.

Model is correctDrawing shows double start