Compute All warnings on parts deleted from design.

[HughesTooling]

Fusion crashed while modifying a design, when the backup opened and I carried on working I get warnings. Running Compute All gives a list of errors but no warnings show in the timeline. Looking at the warnings it looks like they are for a set of ejector pins I deleted form the design. I had 12 6mm pins and decided I needed 5mm pins so I just selected the component that contained all the 6mm pins, this removed all the joins associated with them but Compute All still flags errors. I can't share the design here but if someone from support want a download link I'll PM one.

Thanks Mark

[paul.clauss]

Hi @HughesTooling

Thanks for bringing this one up! I had a look and could not find any that seem consistent with the behavior you are seeing here. Feel free to PM me a download link and I will log a bug for this one.

For reference, did you delete or remove the set of ejector pins? If you could create a screencast showing your workflow leading up to this issue it may help us identify the root cause.

[HughesTooling]

I had a component that contained 2 more components as base features, these where imports from Part4CAD. I then made 5 copies of each and applied joints to position then. When I realised I should have used 5mm pins I selected the top component that contained all the 6mm pins and used Delete not remove. The component that contained the 6mm pins was in a sub assembly as well.

Here's a screen gram of the browser with the 5mm pins.

Mark

[TrippyLighting]

This "implicit  joint origin" warning  is a known bug that's been reported a while back by @macmanpb and I have a model with the same behavior. If I find the thread I'll link it here.

Edit: Here is the link.

[macmanpb]

Here is the link to the original post. 😉

http://forums.autodesk.com/t5/design-validate-document/how-can-i-fix-that-joint-warning/td-p/6608609

[HughesTooling]

After reading through the thread @TrippyLighting linked I think the problem points to the problem I had not being able to update a hole feature that'd lost it's sketch points, see this Thread. I had to delete the original hole feature and create a new one. So it's a combination of deleted hole feature and deleted components that used the hole feature as joint origins. There really needs to be better tools for reselecting lost references rather than having to delete completely then reselect. @TrippyLighting brought up a problem recently where modifying a body in a base feature broke a copy of the body with no way to rereference.

My problem with deleting the hole feature goes back to a sketch losing a reference to a projected edge. The sketch high lights the problem curve in yellow but there's no way to pick a different edge to fix the problem.

Like here where I've removed a hole feature and it's broken the link to the projected curve, deleting the curve can cause lots of waning further down the timeline. I could just break the link and project the new hole then constrain the unlinked circle to the new projection but that's not very clean. It would be a lot better if I could right click and have an option rereference and select the new hole and not break later features in the timeline. Think similar to the way you can reattach dimensions in the 2d drawing workspace.

Mark

[paul.clauss]

Hi @HughesTooling

I had a look at this today and believe that you are experiencing the same issue that was brought up in this thread, linked earlier by @TrippyLighting. It seems like your workflow closely followed the screencast @macmanpb posted in that thread and that this issue is specific to having deleted joined components. This issue was logged as FUS-28693 and should be resolved in the January update to Fusion 360. I have linked this thread to the bug report.

Please let me know if you have any questions!

[HughesTooling]

I think this is supposed to be fixed in the latest release. Does it fix files that already have the problem because the file I used in this thread still has the problem, I've tried running compute all and get this.

Mark

[macmanpb]

@HughesTooling, here too.

I have tried  a design that have implicit joint warnings and after update it still has it.

The fusion team has this design, so it is easy to test!

[paul.clauss]

Hi @macmanpb

I spoke with development about this issue and they noted that the fix should only resolve this issue in new datasets - meaning that existing designs showing this behavior will continue to show the implicit joint origin warnings. The fix in this months update should prevent this issue from occurring in new files, but there is no fix available to resolve the warnings in existing files.

[HughesTooling]

Looks like this is not fixed. Same as before, deleted an inserted component that used a joint, deleting the component deletes the joint and I get this warning a bit later when I make a change.

Mark

[PhilProcarioJr]

@HughesTooling

I'm wondering if we should add a request to the ideastation to be able to recover models (or at least referenced data) from the cached data. Obviously Fusion has the data stored in the cache so it should be possible to add the referenced data back in to fix errors like these. Even if the only data that was recovered was just the referenced sketch entities or single surfaces.... Might be worth asking for as the issue with errors using cached data comes up almost daily.

Just some thoughts....

[HughesTooling]

Looks like a different error.

I found the highlighted joint is the problem but shouldn't it be yellow so I know where the error is.

Mark

[HughesTooling]

@PhilProcarioJr The problem in my original post was a bit different because deleting the inserted part deleted the joint so you'd need to recover both then you'd probably be able to delete the joint then component and it would fix the problem.

One idea that would help with sketches. When you have a yellow cached curve, deleting and reprojecting can break a lot down stream. It would work a lot better if the was an option to reselect an edge, a bit like in the drawing workspace where there's an option to reattach dimensions.

Mark

[paul.clauss]

Hi @HughesTooling

I believe you are now experiencing some behavior related to a known issue logged as FUS-19808, in which failed implicit joint origins are not marked in the design timeline. This issue is currently unresolved - I have linked this thread to our development teams report and they will be looking into it. Thanks for bringing this to our attention - please let me know if you have any questions!