Fusion 360 application not responding anymore - Reproducible

[dual533]

I have a simple sketch with basicall a circle and about 350 rectangle in it. These rectangles were created with repeative circle patterns of 10 basic rectangles x 35 rectangles (10x35=350)

All of a sudden the app became dead slow when inserting dimension lines. At one point adding a further dimension leads to a application almost stopping completely - MY CPU load is 100%. And it doesn't seem to recover from that.

Is there a possibility that a expert of Autodesk has a look into my file? I don't want to attach it here public.

Maybe a principle problem of Fusion or something specifically is wrong with my file?

Thanks for any help.

Stephan

[jeff_strater]

Hi @dual533,

I assume from the context that you are creating a sketch pattern here.  A sketch pattern with 350 instances will definitely stress the sketch system.  I would not recommend creating a sketch pattern quite so large.  Is there a reason why you cannot do this as a feature pattern?  That is create one rectangle, create a feature from it, then pattern that feature?  That will be much more efficient.

Jeff Strater (Fusion development)

[dual533]

Jeff,

Thanks for helping.

I'm not sure what a feature pattern is. I need to check this 🙂

Have a look at my design. In the red rectangle you can see my 10 rectangles on a different radius. Towards the left and right I'm doing a circular pattern symmetric up to 260°. The number of 350 is a wild guess, I didn't really count, but I guess it is close to 350.

Do you think that a feature pattern is simpler for doing this? Maybe there is a much simpler approach to do the arrangement

Thanks for a response!

Stephan

[dual533]

Jeff, 

I understood what you mean. Actually this is exactly what I was doing: Using the "circular pattern" command applying to each of the 10 rectangles with some different parameters each time. (up to 49 instances symmetrically over 260°). This seems to stress the system extremely - especially when I try to modify the size of the corresponding base rectangle. The system sometimes takes up to a couple of minutes until it is responsive again. Sometimes it doesn't seem to recover.

You might want to try yourself by changing the size of a center reactangle.... : http://a360.co/1QjQL7h

Best regards

Stephan

[jeff_strater · Accepted solution]

Hi @dual533,

I looked at your model.   And yes, this is a large sketch pattern that will not perform well for you.  What I would do instead is to pattern the feature that you want to derive from the sketch, not the sketch elements.

Here is a really simple version (and yes, I know that my pattern wipes out too much geometry near the middle, but hopefully you get the idea).  So, create the first pattern in sketch, then the circular pattern using feature pattern, not sketch pattern:

Jeff

[dual533]

Dear Jeff!

You've made my day!!! Just awesome. Your suggestion is absolutely awesome and definitely has solved my problems. So much simpler and faster than when trying to do all inside the sketch plane. All I can say is wowowowow.

Here my new test design done in less than 10min!

Best regards and thanks a lot

Stephan