Fusion slow: for rather small assemblies and using very little ressources

[florian.poinsignon6Q7RU]

Hello,

I am facing slow downs and crashes that render the software barely usable for me, talking about 30 to 5 min freeze and even sometimes crashes. My computer just cruise through everything else and only 5% of CPU and RAM are used.

It does work flawlessly for a single part, but the moment it touches an assembly of ~50+ parts or even a complex sketch, actions start taking dozens of seconds to compute it feels very wrong. 

On top of that I have experienced errors for things that works in smaller assembly, such as over defining assemblies or sketches (which do not over define in a simple sketch or assembly).

I know fusion is well known for not being so fast with assemblies but it is getting to a point doing a dozen actions takes an hour on my model, and to clarify I am not designing a jet engine, it's very simple geometries, just a few of them and very annotated sketches.

Thanks!

[Beyondforce]

Hey @florian.poinsignon6Q7RU ,

Please attach the file and your computer specs.

[Anonymous]

@florian.poinsignon6Q7RU it's very difficult working from an android. Just refer to the forum https://forums.autodesk.com/t5/fusion-360-support/how-to-use-more-computer-resources/td-p/7027548

It should be answered, marked answered.

[florian.poinsignon6Q7RU]

Hi,

Thanks for the reply, sadly it's all under NDA but if that's any help here's a plate that lags in the sketch mode, each actions takes a few seconds, sometimes up to 10.

My computer specs are (reiterating but they it's peaking not even using 10% of the resources) :

AMD Ryzen 5 3600 Processor

Corsair 32 GB (2 x 16 GB) DDR4 3200 MHz

1060GTX

Corsair CSSD-F960GBMP510 NVMe

Thanks for the help it's greatly appreciated,

Florian

[florian.poinsignon6Q7RU]

Hi MrMiiner,

Thanks for the reply, I had a look in the forum and the 2 things I see coming back all the time are the GPU drivers and antivirus running in the background, is one of them a show stopper that reduce Fusion performances by an order of magnitude? 

Thanks,

Florian

[Anonymous]

@florian.poinsignon6Q7RU you have to understand that I'm not an expert in this field at all. There are separated reasons for blaming GPU drivers. First if you have them and they work correctly. Second is the graphic profiles that can interfere and lower performance. The antivirus will usually block access to hard disk and cpu processes. It just doesn't mean that you can get slow performance instead difficult errors. 

I can also suggest the prerequisite checker I seen in a different discussion before. 

https://knowledge.autodesk.com/support/3ds-max/learn-explore/caas/sfdcarticles/sfdcarticles/Using-th...

Problem is that is designed for 3ds. I remember a search for a similar product for fusion 360. And I also recommend checking your hardware in Fusion 360. It will often display what resources that program can use. And that might be in the Fusion 360 installation folder. They include various 3rd party and directx programs by default.

As far as the topic I myself get a lot of solutions just by clearing the cache all the time and something like that. 

Another suggestion I got from another member is to disable the virtual memory in my operating system. So only the hardware ram is used.

There could also be an issue with the hard disk that requires you to turn off search indexing. That's usually easy to find by using the search in Windows Start menu.

[Anonymous]

@florian.poinsignon6Q7RU. sorry just a slow person here.

 

[florian.poinsignon6Q7RU]

Hi @Anonymous, thanks for the reply, I just tried the performance checker, but nothing was spotter (see included image). GPU drivers are up to date, I don't use external antivirus, Windows defender does its job, tried to disable it too didn't do anything. At this point not sure what to do apart from switching to another CAD software entirely. 

I attached a file that get the software to freeze and crash on a regular basis, here is a screencast.

https://autode.sk/2WcV7aX

Thanks again for the help MrMiiner, much appreciated 🙂

[Beyondforce]

Hey @florian.poinsignon6Q7RU ,

What you did with the sketch is a BIG no no!!! That also makes sense why you are having problems.

You should create only one pattern and use the Feature Pattern instead. 

Fusion doesn't like complex geometries and there is no reason for that either.

[florian.poinsignon6Q7RU]

Hi Beyondforce, 

Thanks for the reply, I agree it could be optimised by using feature patterns to have a simpler sketch - although in this case I needed to edit it as the main pattern was the same but some details had to be edited before extrusion. I know it can be done once extruded too.

It's definitely a very valid point don't get me wrong, and I agree this sketch is on the start of the complicated side, I would post my assemblies that lag if it wasn't under NDA. But the fundamental issue I am facing here, is that this sketch/geometry is handled pretty easily by other software (SW, illustrator, sketchup, I know they have things that work in different aspects, but I am talking 0 lag vs minute long freezes at time, just trying to compare in term of scale). And it's not only a matter of lag, at this point after the pattern has been duplicated, I can't even do some actions on fusion, it will hang and just not do the actions. 

Again, if I was trying something unbelievably difficult to do by most software and try to run that on a hot potato, I would only have my eyes to cry. But here clearly fusion 360 struggle to make use of the decent hardware I have do simple things. I can draw a few simple shapes and assembles them, but things get slow really quickly past that.

[Beyondforce]

I don't have any issues with the file and it's mostly because my CPU is very fast (4.8ghz).
To solve your challenge, you could try Direct modeling.

[Anonymous]

@florian.poinsignon6Q7RU  I have to just 'join' the conversation at this point after reading the latest information. In sketch problems it is recommended to disable anti aliasing for vector drawing. Just disable anti alias it the same thing for every part of the project. Very little to understand from your information is the setup you have for the working environment. Don't load files from your network for example. You can simply find a plugin to magnify your performance. There are a lot of plugins available from developers and testers alike. Some plugins are just designed to create easy to create patterns and various instructions for polygons. Others are something like maintenance plugins that will redirect and mange your shader resources altogether. Just a suggestion. There are no no-noes in Fusion 360 anyway. 

[Anonymous]

@florian.poinsignon6Q7RU  I don't really care how much knowledge you have about Fusion 360 or what type of work you do with the program. It's a design flaw. You can recreate every error if you knew what you were doing or the developers knew what they were doing. They are working on some kind of a field over there I'm sure. And pretending like every problem listed on the forum is a lie because they can't get access to the formats of the submitted reports. It's very easy it works by treating the program like a trick. You have a default new file every time you open the app it stays open all the time. If you close the new file or open a new project then close that new file the program will default to some crash mode already.

[TrippyLighting]

The statement "but this works in software XXXX" really males very little sense.

I recently attempted to create a model in SolidWorks I had previously created in Fusion 360 and in ZW3D. All three software packages required adjustments in the workflow and I was not able to complete the model in SolidWorks despite the fact that I have more experience in SW (15 years) than in Fusion 360 (5 years) and ZW3D (3 years) combined. 

I've worked with many CAD applications across almost 3 decades and each and every time I had to adjust my workflow to suit the application. 

As to utilization of resources, CAD applications including SW as it pertains to creating geometry are mostly signed threaded! 

[florian.poinsignon6Q7RU]

Hi @TrippyLighting ,

Thanks for the reply, I appreciate it's not the best argument but it's mostly a matter of scale, anything remotely close to that to work with the performances I have witnessed would just pure sci-fi, it would hang forever long before that. 

To be 100% clear, I appreciate to know how well it runs on other people machines, give me a good idea of how it should be able to run on mine. But I essentially face what seems to be a huge performance issue on my installation, tried all kind of things to make it run better (update drivers, clean reinstall etc), and all I can find from Fusion is "update GPU drivers". I have 3 machines that run fusion, a PC with fairly performant hardware (of which fusion only manages to use 5% of the CPU tops, and hang at 1% most of the time, which puzzle me), an XPS 13 9380 and an intel NUC 6th gen, and fusion run similarly on all of them. The NUC and laptop can be considered less performant, but I get a very similar experience across.

Ultimately I am trying to give the best shot I can to Fusion 360, people love it and I understand why, it has been great until things get complex enough the computer hangs for minutes. But I am trying to get that working for my team on any machine, and right now there's no way to get it to run decently. And it's not at a scale where cutting corners or change workflow can save us, we're way below that threshold, we design simple geometries and cases, not reaction engines. But if it's more than a few dozens parts, it's over.

Regards,

Florian

[TrippyLighting]

What I was trying to convey is that this is very unlikely a matter of hardware!

You'll appreciate that this is something that we address frequently here in the forum and it very rarely hardware related. It has already been pointed out to you what part of the problem is. Whether you address that appropriately is up to you.

[Anonymous]

@florian.poinsignon6Q7RU 

I mean the program is a best solution for bed printing. That's the best classification. And it's not exactly BIM ready. I don't really remember if anyone uses it as BIM successfully. I just use a regular computer most of the time. Here are the specs. 

https://support.hp.com/us-en/document/c05281438

I do get stuck sometimes in very large amount of parts. But, it's also AMD and I only upgraded the RAM to 12 gb. All I could do.

[Anonymous]

And here is the gallery profile https://gallery.autodesk.com/users/RNN3KWN5NJE2

This is mostly all I have time to do. Full time job on the other schedule. Actually a rare occasion to get a good performance experience. Start slow maybe. But, if you want to do everything by yourself. Then yes you need a better computer. And I think workstation graphics are larger in memory for a better price.

[Anonymous]

@florian.poinsignon6Q7RU  I just realized you may be talking about a parallel question when talking about too many resources used. Try getting some more information about this; http://help.autodesk.com/view/CONNECT/ENU/  

It's a Autodesk Desktop Connector and it was also imported from the Fusion 360 creator or beta editions. What ever they call it. It shouldn't be to difficult to use.

Here is the information database; https://knowledge.autodesk.com/search-result/caas/simplecontent/content/remote-work-resource-center.... 

I'm an infant when it comes to using the Fusion 360 program resources. But, as I understand it was advertised as a virtual computer software for Fusion 360.