Creating sketch causing downstream errors

[calvinrodrigue]

I am creating a design, and I want to add a new sketch and extrude it. The sketch needs to be lined up with a previous shape, so I use Project to add that geometry to the sketch plane. However, when I click "Finish Sketch", even though the feature is at the end of the timeline, it causes "downstream failures". This sketch is somehow editing features that came before it, and I am wondering how to fix this. All that is happening is that I am clicking the "Finish Sketch" button. Thanks for the support!

[davebYYPCU]

I agree with you, finish sketch on the end of that timeline, should have no effect.

Move the timeline marker to before the sketch, fixes all of those?

File > Export, save local, and attach to another message, 

as the groups are collapsed, the diagnosis by picture, is not possible.

[calvinrodrigue]

It does not fix it, moving the timeline marker. I will send the files before and after the changes.

[calvinrodrigue]

Files

[jhackney1972]

Files are not attached.  You cannot attach them using email, you must attach them using the Attachment section of your Forum post.

[calvinrodrigue]

I attached them in a separate reply, sorry for the double post I am new to forums

[jhackney1972]

Please attach the link to the post because, by the Forum table, this is the only post you have created today.

[calvinrodrigue]

Sorry, they didn't seem to be uploading. I will try again in this reply. A appreciate the assistance!

[jhackney1972]

Your timeline needed to be regenerated.  I did this by running the timeline marker back and allowed it to regenerate the model as I moved it forward.  The sketch you said gave you issues I used it to do the extrusion I assumed you plan to use it for, to clean up the hole.  Model is attached.

[calvinrodrigue]

This seems to fix the downstream errors, but for some reason offsets the holes running down the length of the blade. This error also occurs when making slight edits to unrelated sketches earlier in the model.

[jhackney1972]

These holes are in your design.  They are created by three sweeps.  You will have to determine if you want them or not.

[calvinrodrigue]

Yes, the goal of the holes is to run through the center of the sword. However, regenerating the model offsets the position of these holes.

[jeff_strater]

@calvinrodrigue - your instinct is correct.  This is a bug of some kind.  I'm not sure, exactly what the cause is, though.  I have never seen a design that has this particular problem.  It's almost like the design is never fully up to date.  Even doing a  Compute All (which should make the design stable) does not seem to fix it totally.

I've created bug FUS-98389 for this design.

My only request to you is whether you had any recollection of what you might have done in this design just before you noticed this.  Can you share some back versions (before V16)?  If we have some idea about what edits you might have made, it will help us see a) whether it can be fixed, and b) help us try to detect whatever caused this, to prevent other designs from falling into this same problem.  Thanks.

[calvinrodrigue]

Thank you for clarifying this. I have created a link to to project, I hope it works for viewing previous versions.
https://a360.co/3gGbDKt

[jeff_strater]

unfortunately, Share Public Link only shares the latest version - I don't have access to previous versions from that link.  If you can just open V15, check to see whether it is OK, and then use Export, choosing "Fusion Archive" for that design, that will assure that I get the correct version.  And also, if V15 seems to be OK, and we know V16 is not, if you have any recollection of what all you did between the two, that would help.  It's a long shot, I know, unless you save very frequently.  But, any memory of what you might have been doing around the time that things went south would be great.  Were you reordering features in the timeline,  editing older features, restructuring your components or bodies, etc.  Thanks.

[calvinrodrigue]

I am going back through design history and finding which version the bug first appeared. It seems that it happened between v7 and v8. This makes sense, because in this change, I deleted several features (all at the end of the timeline) and rebuilt them slightly differently. I call them the "connector pieces" because they are the sections of the sword segments that interlock with the other segments. I also changed the value by which I scaled down the bodies and Sketch4. I have attached both versions, before and after the bug.

[jeff_strater]

thank you, @calvinrodrigue , that is exactly what we need.  Really appreciate you taking the time to do that, I believe it will help in tracking this down.