Fusion 360: Is it me or is it very very slow?

Hi, before escalate I wanted to check with any F360 users in this forum whether they are finding that F360 is really slow to open, slow to respond once clicked away, say to look at a different app like chrome, then return back to F360?. And this is without any F360 designs open.

Cheers

No issues today with mine, just typical time for generating complex toolpaths.

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Thank you. Sadly, it must be me. Thank you for a fast response

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Mine remains snappy as well, at least not unusually slow. It has happened to me before however - but I have a habit of accumulating open search tabs, Bambu projects, Fusion projects, …:grinning_face_with_smiling_eyes:

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I don’t have any real issues unless I have a design open with a lot of objects (i.e., components). Sometimes calculating tool paths takes some time, but usually because I’ve screwed something up.

I might help to post your computer specs as a metric.

-Tom

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We have always found it slower to open than most programs. (And there’s always an update when we do open it! :slight_smile: )

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A third application reset, PC reboots, unchecked anything and everything. It now appears to be working well enough for me to use it. I knew it would. Not because of what I did above but because I messaged this forum. It’s happened before with other issues. The forum is like an “unjinx", if such a term exists, and I’m not normally superstitious.

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That’s a real thing.

When I would get completely frustrated with a system, I’d walk into the server room and gently lay a hammer on top of the case or rack with the misbehaving equipment. More often than not the gremlins would scurry away.

After a while it got the point in some server rooms at some clients just walking in was enough to fix the problem, LOL.

I was like having a horrible dentist as a kid that your parents threatened you with… oh no! We’d better behave or they get Dr. L.M.

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The “problem” with Fusion is they are trying to be “everything” for “everyone”. Though it is great to have CAD, CAM, drawing, simulation, render, and ECAM in one package, if you don’t need some of the tools, you have to suffer with them anyway. It keeps getting bigger and slower with each update. Last couple updates have crushed performance (IME). I’m hoping they will address the recent performance issues in a future update - they usually do once or twice a year.

They do push an update once a month - a lot more ‘predictable’ than other packages, but if you don’t use it frequently, it will seem like it updates every time you open it :wink: . At least you can delay the update now, which is nice.

If it matters, I’ve never found “resetting” the application to solve anything. Turning off some of the graphics and rendering options did help after one of the updates completely boogered performance.

+/- 0.02

-Tom

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I have found that if you don’t have a top end gaming computer it is noticeably slow and in some cases virtually unusable if you don’t have saintly patience. And new versions seem to be attempting to maximize the use of the latest machines so even a top line machine from a year or two ago will slow down with every update. It makes sense due to the graphics intensive nature of the tasks it is performing, but as you noted, trying to do everything for everyone just keeps making it bigger & slower.

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Clarifying a little. A Top End gaming Computer is not necessarily needed as Fusion, like most CAD/CAM software is single threaded and can’t take advantage of multiple CPU cores like modern computer games. What you need to focus on instead is the speed of the CPU. Find a CPU with high Speed over multiple cores. An older PC with a 3.6Ghz single core cpu will run Fusion better than a newer multi-threaded 12 core CPU at 2.4Ghz.

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As with anything technical this is true but misleading. On a CPU basis this is correct. Fusion can only use 1 CPU (or core) but unless that’s the only thing your computer is doing, the other things running can impact Fusion performance by using cycles from a single core or causing memory swapping on low memory machines (less than 32Gb Ram).

Additionally, gaming computers are not just about multi-core CPUs. One of the primary performance benefits of a gaming computer is getting a dedicated GPU (graphics processing unit) with dedicated graphics RAM. Your general purpose computer likely uses a graphics chip that shares CPU & RAM with the main computational tasks. Gaming computers do not do that.

Fusion does benefit from a dedicated GPU for things like smooth viewport navigation, handling complex assemblies with high-resolution visual effects, and in areas like CAM simulation. These are areas you directly interact with and notice as you use Fusion unless you don’t do things like run the simulation or turn your model or use a hi-res monitor (like that 4K one that’s pretty standard now even for low & mid-range computers).

A dedicated GPU enables better performance with complex models, offering higher frame rates for zooming, panning, and orbiting. But if you don’t do any of that, then sure, skip the gaming computer. High-end GPUs manage effects like anti-aliasing, reflections, and ambient occlusion without slowing down the design workspace. So even though Fusion isn’t using the extra cores of the CPU, it is definitely going to feel faster and smoother on a gaming computer with an Nvidia graphics card vs the usual generic embedded Intel video chip set.

Fusion’s “Fast mode” simulation, uses dedicated GPUs to significantly speed up toolpath verification, which reduces processing times significantly and in some cases allows you to process that toolpath that otherwise might stall the computer altogether.

That’s the not simple explanation why gaming computers can make a difference in your Fusion experience even if Fusion can’t use all of its capabilities (multi-core CPUs) because not everything can be handled only by the CPU and gaming computers are not just multi-core computers.

As a general recommendation, a gaming computer already has a bunch of stuff that you can add to a more general purpose computer to make Fusion faster but saves you from having to do on your own.

It’s just like cars. I don’t need a Lexus to drive cross country but it’s definitely a better user (driver, passenger) experience than a Ford F150.

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Can’t argue with any of that :slight_smile:. I think we are in agreement that Fusion will run adequately on a lesser machine with a faster CPU so if money’s tight, and you don’t NEED the Lexus, a GTI will probably perform adequately for you. :smiley: (BTW 36 year IT guy who woodworks as a hobby)

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You folks are so far beyond me I feel like I am a child being taught string theory and quadratic equations while still in the crib. All I can do is nod.

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Well, if you’re married as I am, nodding and saying ‘Yes dear’ should come naturally. :stuck_out_tongue:

I wouldn’t worry about it over much, you put a bunch of professionals in a room and it’s going to descend into trade speak soon enough.

Hell sitting and listening to my father-in-law talking with a framing crew on my brother-in-laws house build made me feel the same.

That man was a gem, he spoke, architect, foundation-guy, framer, plumber, electrician, HVAC, sider, roofer and was fluent in the most important language on any job site Inspector! Learned a lot from him though at best I could generally only follow about every fifth word.

Every trade, every gift has it’s own tongue.

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Not only slower, the complete Manufacture Workspace has disappeared after the latest update. After numerous attempts to reinstall the software it turned out that my 2017 iMac was no longer supported. Last year on my 5 year old Dell laptop it was impossible to upgrade from Windows 10 to Windows 11. No more support for this as well. Apparently the guys at Autodesk like to make sure we buy the latest hardware as well. This policy really sucks big time.

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That’s not a surprise. If you have the hobbyist version, they routinely remove features they think you don’t need because you’re not in business. There was a big outcry when they removed rapids because saving time wasn’t needed by non-commercial users :grinning_face_with_smiling_eyes: That’s when I stopped using it or offering my Fusion class at our Makerspace.

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Someone has written a post to restore rapids, perhaps on GitHub.

If I had a hobby version I wouldn’t complain. I paid for the software. So I expect it to work. And not to stop without notice that I need to upgrade my hardware.