topic Re: Very Slow Performance and Lots of Crashes in Fusion Support Forum

Very Slow Performance and Lots of Crashes

timdsilva — Tue, 14 Jul 2020 16:30:12 GMT

I am working with some complex meshes and modeling around them after turning them into Breps. My computer is having lots of issues. Seeing the spinning rainbow wheel a lot for 5-10 minutes sometimes then crash most of the time.

Is it time for a new computer?

MacBook Pro Late 2013

2.3GHz Quad-Core Intel i7

16GB 1600 MHz DDR3 RAM

NVIDIA GeForce GT 750M 2GB Graphics

Re: Very Slow Performance and Lots of Crashes

jeff_strater — Tue, 14 Jul 2020 17:00:49 GMT

@timdsilva - this workflow (converting a complex mesh into a BRep and trying to do further modeling on it) is not recommended, and you are experiencing why that is the case. This is very inefficient, because it will produce a very heavy BRep model. So, first question is: what are you trying to do with this model? Why do you need a BRep? Second, can you get this data in other than mesh form? A STEP model with BRep geometry is going to be much more efficient to work with. Third: when you experience "crashes", is Fusion really crashing, or are you Force Quitting it? Those are two very different scenarios for us. If you are force quitting, then likely the operation would succeed, given sufficient time. That is not really a crash.

Can you share this model with us so we can take a look? What particular modeling operations are you trying to do with this model?

Re: Very Slow Performance and Lots of Crashes

timdsilva — Tue, 14 Jul 2020 17:23:52 GMT

I am doing a 3D scan of a item for reverse engineering and making a vacuum form from it. So a STL is coming from my 3D scanner. Is there a better way other than making the mesh into a brep? The crashes are Fusion 360 crashing and then asking me if I want tp send the crash data to autodesk. I always send it. I'm not force quitting. Thanks for your help! Any suggestions?

Re: Very Slow Performance and Lots of Crashes

TheCADWhisperer — Tue, 14 Jul 2020 17:35:55 GMT

@timdsilva wrote:
I am doing a 3D scan of a item for reverse engineering and making a vacuum form from it. So a STL is coming from my 3D scanner. Is there a better way other than making the mesh into a brep?

Can you post an image?

How organic is the geometry.

I would use the scan only as reference in creating proper b-rep geometry and then delete the scan from the file.

Re: Very Slow Performance and Lots of Crashes

timdsilva — Tue, 14 Jul 2020 21:10:26 GMT

Would it handle the STL/mesh better? Should I avoid converting to a Brep?