Hardware

[davidSWEUU]

I have a computer I use at home and another one at work. both have been working well with fusion (Both different, but same issue), but I am running into an issue were I have made a rectangular pattern with a bunch of circles (21x45) As soon as I do this the system bogs down and I end up waiting minutes, sometimes hours for each new function I try to perform (From adjusting dimensions or adding/removing sketch lines, to creating flanges and bends, etc.) I delete the pattern and it works snappy again.  I am assuming this is a hardware issue, but I have had far more complex designs than a rectangle with circles.  What piece of hardware upgrade  would be recommended to resolve this issue? Or is there a software setting or perhaps a bug? This only started in the past few days.  I have attached the graphic diagnostics as well as screen shots with system information.

Graphics diagnostics:

Thanks!

[jodom4 · Accepted solution]

Hey davidSWEUU,

This is a limitation that currently exists in Fusion. Calculating geometry past a certain threshold slows down processing. 

Some workarounds are to 1) only pattern 3D geometry, not sketch geometry. This will make Fusion calculate the feature once, whereas creating individual 3D features from a 2D sketch pattern will calculate each feature separately. 

2) if you're already doing that but you're still getting slow performance, you can create one feature, then pattern the cutting operation if you're using CNC machining or cutting.

I hope this helps-

[davidSWEUU]

Thanks for the reply. I actually tried patterning in 3D geometry out of curiosity (after I posted the idea came to me). And it worked great.  I was surprised it worked and your explanation as to why is good knowledge. I need to put more faith in the 3D side and work less in the sketching. environment.

Thanks so much!

David.

[tomjansson909]

I have a hardware related question. I´m planning to buy a laptop for using when i´m not at home. I was suprised how little the processor and graphics card work and it seems that the ram is what have the biggest load. How big and how fast is enough ram for design. Using quit big files sometimes but i never do simulation.

Regards / Tom 

[g-andresen]

Hi,

The CPU speed is the key to low-friction operation.

The number of cores does not matter.
The RAM should be larger than 8 GB .

günther

[tomjansson909]

Hi Guenther. Thank´s for fast reply.

You don´t need dedicated graphics card?

If so, is it 8 GB RAM for that as well?

The laptop i'm looking at i can choose for double the RAM but slower speed. Which one is to prefer if it's more then 8gb?

Regards/Tom

[g-andresen]

Hi,

---

@tomjansson909  schrieb:

You don´t need dedicated graphics card?

The graphic card does not play such a big role in Fusion. But onboard systems can occasionally have limitations. > Test them!

The laptop i'm looking at i can choose for double the RAM but slower speed. Which one is to prefer if it's more then 8gb?

Only so much RAM does not replace CPU speed.

---

Günther

[tomjansson909]

No. I'm talking about RAM speed.

I can choose of 2666Mhz 64gb or 2990Mhz 32gb

Regards/Tom

[g-andresen]

Hi,

I can only report that I have seen a maximum of 60-70% utilization with my 16 GB RAM.

Günther

[tomjansson909]

Hi Guenther.

Sounds good. Maybe can even lower the spec. a little 🙂 

Thank you for all your help, much appreciated

Best regards/Tom