More issues with constraints

[robduarte]

Lots of problems with constraints in sketches these days it seems. Please see the video:

https://www.youtube.com/watch?v=6EVjSffqOg8

Here is the shared model:

http://a360.co/1pwIDs9

Obviously even if there are problems with the sketch, the ways that Fusion 360 are responding are not good. Hopefully this helps the engineers get this hammered out.

[HughesTooling]

What seems to be causing the problem in your sketch is the offset, if you select the offset constraint and delete the sketch colours change to fully constrained and then you can no longer drag parts of it around like in you video. Still got to call it a bug though.

Mark

[promm · Accepted solution]

@robduarte,

As Mark mentioned I see that you created an offset, deleted the dimension, changed it to construction geometry and then added dimensions.  When I create the same sketch without using offset I do not see the same results.  With that said, thank you for bringing this to our attention, we know of some offset constrain issues and I have forwarded this to the team to look into it.

Cheers,

Mike Prom

[robduarte]

This explains why sketch constraints seem to have started to become flaky as of late... I feel like it's since the introduction of the new/updated Offset tool. All of the sketches that seem to go crazy like this seem to have Offsets in them. Yes, in the example I showed I converted an offset line to a construction line - I'm not sure how else to do that since the new/updated Offset tool doesn't allow us to offset a construction line.  Is there any reason for that limitation?

[JamieGilchrist]

Hey Rob,

I made a quick little video showing your sketch and how you can (mostly) avoid some of the wondky behavior you were seeing.

I've also attached a file with a new component that has the sketch not locked down to the origin.

hope this helps.

[JamieGilchrist]

one other thing you can try, on your original sketch, right click on the 0,0,0 origin and delete the coincident constraint.  This will effectively get your sketch into the state as if you did not start on the origin, as I explained in the video.

hope this helps.

[robduarte]

Thanks for this advice. I like starting my sketches at the origin so this is unfortunate but useful to know. You said it's a bug so hopefully it's not a workaround that we have to do always in the future.

While one of my issues was not having this fully constrained, it was actually helpful to be able to drag curves around to show the actual bug that we've been talking about above. I believe an earlier poster nailed it when he said it has to do with the offset. Until I can (1) offset construction lines and (2) offset faces instead of just lines -- both of which we were able to do before the changes in the Offset command -- I'm going to have to avoid using Offset entirely to avoid frustration.