topic Re: Thread create failed in Fusion Support Forum

Thread create failed

tinglett — Thu, 04 Jul 2019 17:23:19 GMT

This might be a cascading set of problems. Here's a link to the design: https://a360.co/2L0GV0s

I'm designing a frame with some cross rods that should be threaded on the ends. It's real simple and looks like this:

0.5" Rod needing threads

This rod is a 0.5" pipe created from a path from a sketch (more on that in a minute). Then I try to use the thread tool to give it threads. I don't really want a fully threaded rod, but for this report I just took the defaults. Note that I selected the rod, and the body of the rod almost disappears during the operation (note the end face only is visible).Thread dialog with defaults

When I hit ok, I get this error.Thread error

I'm not sure what I'm doing wrong. This worked easy peasy in the past.

Another thing that is really odd is that the sketch I used to create the rod has a couple mystery projections I can't delete. Well, I did delete them, but Fusion 360 still thinks they are there. The "manage lost projections" dialog can show them to me, but try as I might, I can't seem to use that dialog to get rid of that. Anyway, that's why there is a warning on that sketch. Would be nice to figure that one out too as I keep thinking I have a problem there :(.

Todd

Re: Thread create failed

TheCADWhisperer — Thu, 04 Jul 2019 17:49:50 GMT

Let's put down the mouse and take a walk out to the shop floor.

Pick up the rod.

In the real world - how would you put a bend in the rod without, well, bending the rod?

I think if you edit the Cross Rod Path to add a bend (Fillet) you will find that the thread features work (on both ends), be sure to uncheck Full Length so that you can specify the desired thread length.

This a Bend in Rod

Re: Thread create failed

tinglett — Thu, 04 Jul 2019 18:00:45 GMT

Well dang, go figure. The funny thing was that I was getting this error even though I was trying to specify only 0.75 length of threads, but even more funny (if that's the right word) was that I was just thinking I needed to add that fillet on the rod as it is indeed supposed to be bent rather than welded!

It's been a day. Thanks for the quick response!

I think I'll "fix" the sketch by deleting it and recreating. That'll be quicker than trying to delete non-existing projections.

Todd