Inversed values?

[Anonymous]

On a drawing of mine, the values for chamfers or drafts sometimes inverse from positive to negative whenever I compute all or edit a feature in the timeline. It is an easy enough fix to simply delete or add a negative value to the same dimensions and watch the error reports disappear, but it is tiresome after a while. I am not sure why this happens or if others have run into this bug. I have since cleaned up the drawing quite a bit and seems to be operating quite nicely now however. I just wanted to shed some light on this issue if anyone was not aware.

[BrettWright]

Hi Alex, 

What specific product are you referring to here? This forum is for A360 (autodesk360.com), so i want to make sure you get to the right team so they can assist.

Please let me know,

[Anonymous]

My bad! This refers to Fusion 360. Thanks for the response.

[Bud_Schroeder_ADESK]

Hi Alex,

No problem and we will move your post to the Fusion forums.

Thanks for the update.

[innovatenate]

Doesn't sound like the correct behavior to me. Can you share some sample files with use that exhibit the issue? 

If you share a Public Link or a Fusion 360 Archive file with us, we would very much like to investigate this further.

Thank You,

[Anonymous]

http://a360.co/1HeJVtQ - this is an older version with many errors. Im getting inconsistent results at this point, but the draft angle flips for the foam board whenever I do a compute all command or editing a feature earlier in the timeline. The draft in question is the 8th feature in line from the start of the timeline. Quite new to these kind of programs in general however so this drawing was quite messy with reference errors and whatnot. Im not sure how much that had to do with the bug.

Sorry for the late response, I did not recieve an email notifying me of any replies. Hope this works for you.

[innovatenate]

Thanks for posting the file. 

Taking a look at the file, I'm not quite able to reproduce the issue with the foamboard draft feature. 

My steps to reproduce were:

1. Open "flawed item"

2. Move bar to the end of the timeline history

3. Select Modify > Compute All

4. Review Timeline for errors.

If I should try something, please let me know. I am happy to do so.

One thing I did note is that there were some warnings and errors in the timeline. Also, I noted that when activating some components, that only a convert body to component command is listed in the timeline.  I also note that most of the sketches are stored in the folder located under the top level component, instead of being stored in sketch folders located in the sub-components.

One thing I think may help is to review the Best Practices guide in the below link:

http://forums.autodesk.com/t5/design-differently/fusion-360-modeling-best-practices/ba-p/5502252

One tip that's really important from the Best Practices is to insert new components when you'd like to create a new components first rather than converting a body to a component later in the design process. When working on this component, activate the component and try to avoid referencing other components unless its absolutely necessary for the design. This will reduce the complexity and the cross-component references in the design. Ultimately, this can help reduce errors if you later decide to modify an aspect of the design.

Another important tip from the best practices is to not leave any red or yellow warning/errors in the timeline. This will help to keep the model clean and functioning as desired.

The last tip I want to mention is to try using XREF'd or Distributed Designs to help reduce the complexity of the timeline in a given design by "compartmentalizing" each design's timeline in it's own workspace.

If you find the timeline is just getting in the way, you may consider disabling it by selecting the gear at the end of the timeline > Do Not Capture Design History.

I hope this helps! Let me know if you have any questions.

Thanks,

[Anonymous]

Thanks a lot for the tips! Its been quite a learning curve so far. That should help a lot for future drawings.

As i said earlier in the post, the drawing no longer has this issue since ive cleaned it up so im sure it had something to do with that. As for the earlier versions it only seemed to reverse the draft once. After i corrected it the additional errors never returned. Ill post again should I run into the error in the future. Thank you