Performance Issues with Small Dimensions

[Anonymous]

Hello, for a project I should work with sub-mm dimensions (I know Fusion 360 is not designed for that). However it displays a weird performance. It does not even utilize the hardware(cpu&gpu) but ram usage fluctuates and everything slows down, when I try to draw something in sketch(there are only 2 simple beams right now) . For a comparison beforehand I could work without a problem on a file that has more than 1000 bodies(millimetric dimensioning). Is there any trick to improve performance?

[jeff_strater]

we'd have to see the model to be certain.  Yes, you are correct, if you try to model objects which are too small, you may run into accuracy issues (unexpected failures, mostly), but I am unaware of any inherent performance concerns with models of that size.  You mention sketch:  If you have a super large sketch, it will be slow no matter if it is sub-mm or more normal size.  How big is the sketch you've been working with?

[Anonymous]

With the one on the above I am having issues.

With this one I have no issue.

[jeff_strater]

Thanks.  OK, maybe super-small sizes ARE actually a performance hit.  Would you be willing to share that model with me?

[Anonymous]

Yes, I upload it here. By the way I have drawn the same design in Inventor Professional 2021 later and there is not any problem.

[jeff_strater]

thanks, @reactionic - can you describe what operations are slow?  I tried some basic sketch editing.  What I saw was that interactive curve creation was a bit jumpy, and that could certainly be ascribed to such small dimensions (I see things lie the dimension preview being very faceted), but overall, the sketch seemed pretty responsive.  Are you seeing something different?

[Anonymous]

@jeff.strater thank you for your try. I attached my record. You can clearly see the difference of smoothness of cursor and rectangle tool in both cases(zoomed in and out).

[jeff_strater]

thanks, @Anonymous - there does seem to be some hiccups added to the UI when zoomed in closely to a model with such small size - I was just not zoomed in far enough to see it.  As far as I know, there is no workaround for this today, unfortunately.