Thicken, Shelling, Filleting, causes Fusion to hang and/or crash

[rwetzler]

I recently upgraded to a new higher end pc hoping to solve some of these hanging issues. It's happens all the time with thicken, shelling, filleting, etc. on anything somewhat complex. It's so infuriating, you wait, wait, usually at a minimum of 30 seconds, make a tiny change and hope for the best only to have it happen again, such a workflow killer. Other times it won't recover at all and requires a restart.  Why can't the bug be fixed to return and error within, e.g. 5 - 10 seconds or at the least warn you it's going to take a long, long while for it to run the calculations and give the option to kill it or wait. I realize it's most likely related to bad geometry and happens more to newbies than pros but it's so frustrating to deal with.

[jeff_strater]

I understand the frustration.  However, the operations you mention here are very complex mathematically, especially so on complex geometry.  Yes, we would all like instantaneous shell, fillet, etc.  But, it's just inherently difficult, and so is going to take some time.  Regarding:  "Why can't the bug be fixed to return and error within, e.g. 5 - 10 seconds".  This is not a "bug".  Again, we would all like something like this to happen.  However, because of the complexity of the math involved, it is just not possible to predict when an error will occur.  You have to get some ways into the algorithm to detect that the result is invalid.  So, unfortunately, there is not too much that can be done at the moment.  As you suggest, the complexity of the geometry is definitely a factor.  So, is the geometry you are working with required to be that complex?  Can you move the shell/offset operations to be earlier in the design, when the geometry is simpler?  Can you simplify the sketch geometry at all?  If not, then, yes, these operations are going to be slow.

[rwetzler]

Thanks for responding Jeff. I realize it must be a difficult problem to solve and hope newer developments can help alleviate some these hangs. Problem for must of us casual users is we have no idea it's bad geometry until after the fact which leads to a bit of a guessing game by making small changes hoping and praying it doesn't crash until we get our results. Most of the time the all these tools work fine me, it's that 10% or so that are really frustrating to deal with and we all know  how is to be stuck on something for hours searching for a solution.