Model becomes slugish, takes up to 30 seconds for a cut operation

[Anonymous]

I'm working on a Star Wars Tie-fighter model but before I'm even halfway done, the model is becoming impossible to work on, operations such as extend or cut takes up to 30 seconds to perform. Rotating the model goes really smooth. 

I've tried slicing up the model into separate parts, deleting the others, my conclusion is that it's simply being too complex/large, but I'm not 100% certain.

None of my other 3D models have this issue, then again none of them has this level of details. The details are needed as it will end up as a huge 3D print in the end.

Is there a way to let Fusion 360 use more RAM for example, or any other technique to make the software respond faster when working on complex models?

[innovatenate]

Is this all one design or are you using X-Ref's (linked) designs? Is this a parametric (timeline) or a direct modeling design?

There's some generic suggestions to optimize the display settings in the below link that may help (if you haven't seen these yet). 

https://knowledge.autodesk.com/support/fusion-360/troubleshooting/caas/sfdcarticles/sfdcarticles/How...

I look forward to your reply! 

Thanks,

[TrippyLighting]

The best way to helps analyse this is to share the design by exporting it as a .f3d and attaching it to the next post.

[Anonymous]

Hi and thanks for the replies. I only started using Fusion 360 a few months ago, being mainly a 2D artist, looking to expand into 3D for 3D printing purposes.
Due to this, I might be using this software the wrong way or maybe not the way it was intended to be used.

I'm working in the Model mode, all in one design, no linked files.

I've attached the model I'm working on to this reply.

What I didn't test last night was slicing up the wing into separate portions and then try the mirror command, I will do that now.

[Anonymous]

I've tried slicing the wing portion up into 4 parts, split in the middle both vertical and horisontal. Then I tried mirroring one portion, Fusion 360 has now been frozen for almost 15 minutes, still working..

I have a workaround for this problem though, exporting the model to Cura allows me to mirror the wing there with no problem, but I'd love to get a complete Tie-fighter model for when I upload it to my GrabCad gallery later.

[PhilProcarioJr]

@Anonymous

Nice work Raymond.

I have worked on models this complicated in Fusion, The first recommendation I would have for you is to assemble this model in a separate file with all parts exported as .STEP files.

The reason for this is to get rid of all history. If you try to build a model with this level of detail and all history based the software will never let you finish it.

Just my 2 cents.

[Anonymous]

Will I still be able to work on the model as I do now in Model mode, after having done that?

[PhilProcarioJr]

The F3d file seems to have history turned off... Your problem is all those fins on the wings. Try turning the display off for those parts while you work. Only turn them back on for exporting your model. See if that helps.

[Anonymous]

I'm trying to mirror the wing so that I have both wings in the same file, when exporting/sharing the final version of the Tie to GrabCad. I'm slowly getting there by mirroring the wing in parts, it's still taking some 20 minutes or more for each part to do that. Turning off display makes the entire wing go invisible, it's one full object.

[PhilProcarioJr]

@Anonymous

The entire wing as one model.....that I wouldn't have done. I would have made all the pieces seperate. This is why your having so much trouble.

[Anonymous]

I'll try to split it up into even more parts before mirroring them and see if that takes care of the problem for this model. Part 2 out of 4 has been freezing up fusion 360 for 40 minutes now...still not finished.


edit:  Gonna try a few more times to see if it was a fluke or not, but when I manually shut down Fusion 360 and opened the recovered model file, the mirroring had completed. Maybe this can be used as a hack from now on, force quitting the program, then opening the recovered file.

edit 2: Most likely a fluke as it did not happen again with two attempts.

[Anonymous]

After splitting the wing into 8 parts, mirroring each part, I was able to create the second wing for my model, the whole process took over an hour in total waiting time for the 8 parts to be created.

I've managed to do what I wanted but the problem has not been resolved though.

[innovatenate]

The patterned geometry on the wings creates a lot of computational overhead. I've split the wing into 18 individual components (6 unique). Then I used a distributed design to assemble everything back together. It seems to rotate and orbit pretty quickly on screen. I'm unsure on what operation you are trying to perform that is slow. Is it an extrude cut? Do you mind elaborating or sharing a screenshot?

Could you upload the attached F3Z file and test with this design?

I hope this helps.

[Anonymous]

I'm trying to make a mirror copy of the wing in the model, as seen below. Mirroring the wing as one object simply froze Fusion 360. However splitting the wing along the red lines, creating 8 objects allowed me to create the mirrored left wing after waiting for the mirroring process for over an hour in total(each right wing object was mirrored separately)