Sluggish behavior, freezing/crashing

[Anonymous]

Unsure as to why (or else I'd not be asking here) but lately F360 has become nearly-unusable in terms of speed and functionality.  I've tried this on 3 different computers (2 PCs and my Macbook Pro) and they're all somewhat-similar variants of mind-bogglingly slow.  Usually the program freezes.  Every so often I can slog my way through it but it takes hours to do what should take minutes.  CPU is usually maxed immediately.  

I like Fusion a lot but at this point I'm really considering looking into other platforms.  This is not my preference (and I hope the problem is me) and I know one lost customer won't faze Autodesk but it'd be nice to get this sorted.

I'd post a few .f3d files but Fusion is now frozen.  EDIT: .f3d file attached.  

[wmhazzard]

My opinion is since you have the same problem on multiple computers and the fact that I and most likely others have no problems on our computers, your problem lies in the models that you create. Most likely a combination of poor modeling practices, complicated sketches or large meshes. 

[jeff_strater]

which particular operations are slow?  What are you trying to do.  The one thing I noticed was that sketch6 is very complex (likely sketched on the body which included all the holes and text cutouts).  I'd recommend turning off the "auto project geometry on active sketch plane" to prevent all that projected geometry from going into that sketch.

[Anonymous]

What operations are slow? - um...all of them?  Even something as simple as toggling between design and manufacture tabs can throw Fusion into a seizure.  I was attempting to edit a sketch and it froze at the attached screenshot.

What am I trying to do? - Again, pretty much anything will cause it to freeze.  I either have to force quit or wait half an hour or more for it to do it's thing.

I tried turning off "auto project..." but I'm currently typing while Fusion is frozen...so not sure if that has had an effect.

Yes, the pocket engraving is complex/detailed but I cannot comprehend how the program cannot process this.  Certainly there are more complicated designed being programmed in Fusion.

[wmhazzard]

Try this version on your computer. What I think is happening is with auto project turned on and maybe you have previous sketches visible when you make a new sketch, the new sketch is picking the projected plane of the previous sketch instead of the body surface. What I did was delete sketch 6 since it projected a lot of points from the letters and it turned out that sketch 7 had referenced the projected plane of sketch 6 instead of the body surface. I then redefined the plane of sketch 7 to the body and the model seems to update quicker although it didn't freeze before. Sketch 3 is an empty sketch except for a projected plane and sketch 4 is referencing it instead of the body.  I would turn off auto project and things should get better. 

[Anonymous]

Thanks to the both of you.  Disabling "auto project..." has made it a bit snappier but it's still hanging at certain places: toggling between design and manufacture, when clicking "finish sketch" it freezes on some of the extrudes.  In the interest of moving on I might split this into two projects: one with the engraved text and one with everything else.  I think the sheer volume of detailed engraving (it's programmed to use a 0.254mm engraver) is bogging the whole thing down.  

The above is when attempting to edit on my 2013 MBP (I'll try w/ my wife's new MBP and my work PC to see if there's a difference.  My preference is to design on the Mac).

And yes, I think I need to work on my sketch game.  I'm not intentionally creating multiple sketches but when I save I think it's automatically finishing the sketch and I end up accidentally/inadvertently creating a new sketch instead of editing.  There are still some funky workflow aspects of Fusion that I've clearly not wrapped my head around.

[TheCADWhisperer]

I noticed that in your Sketch1 each circle is actually 4 arcs.

I would create one circle for each pattern and pattern Features rather than sketch elements.

Sketch2 - I would actually do as at least 16 different sketches (and no duplicate sketch elements).

I would look for more patterns for Hole features.

I would fully define all sketches (size and position of Sketch4 is indeterminate and duplicated geometry).

I would fully define all sketches (size and position of Sketch5 is indeterminate).

I would do Extrude7 as multiple features rather than as one feature. A rebuild compute all (Ctrl B or CMD B) indicates that Extrude7 is "sick".