Weird Edit Joint Behavior

[neljoshua]

So, I made a joint between two flat surfaces and then I had to edit it.  Then this happened.

Fusion picked a new orientation for the joint.  I figured, "No problem; I'll just move it back."  Nope.  It seems that the angle reference is lost or something.  Multiple attempts gave the same result.

I ended up deleting the joint and making a new one.  I have had other joint problems recently (a lot of broken rigid joints that were fine until re-opening a file), but I have been just deleting the joints and re-applying them.

[jeff_strater]

Yeah, that does not look right.  If you just open the design and do Compute All, are they OK?  What I'm trying to find out is whether the problem is in the joint compute, or only with edit Joint?

And, as always, if you are willing to share the model, it would help.  I'll try to reproduce it, but I don't have high hopes...

Jeff

[neljoshua]

@jeff_strater,

I do not think I tried a compute all.  That might have been a good idea.

I will send you the link in a PM.

[jeff_strater]

Thanks for the design.  I will look at it this weekend.  I did do a Compute All, and there are some warnings, but I think that's a different issue, on the Fusion side.

Just for my sanity, though, which joint are you editing in this video?

Jeff

[TrippyLighting]

Here is another much simpler example that shows the same behavior.

I personally have only seen this very rarely and IIRC it's aways been in conjunction with imported geometry.

The mill-max pins were downloaded from the manufacturers website in STEP format.

[neljoshua]

@jeff_strater,

The joint I was editing was the one joining the ice plate assembly to the tank.

@TrippyLighting,

Thanks for the suggestion, but I do not think that is the issue.  There are only a few imported components in this design, and the one in the video was not one of them.  There are, however, many XREFs.

[jeff_strater]

Hi @neljoshua,

I hate to be a pain, but I was looking for which specific joint, by name and parent.  There are a lot of joints in this model,  and it would help if I knew exactly which one is the problem child to look at.  Is it one of the joints at the root?  There are 130 rigid joints at that level.  Is it in one of the subassemblies?

thanks,

Jeff

[TrippyLighting]

There are only 2 joints my mode, which exhibits the same behavior 😉

[jeff_strater]

Thanks, @TrippyLighting, this is a good case.  It may well be the same underlying problem.   I'll look into it.

Jeff

[jeff_strater]

The good news is that this seems to be just a command preview problem.  When you click OK, it looks like the correct rotation is applied to the joint, at least in @TrippyLighting's model

Jeff