Is there a way to increase performance for large parts?

chloe_kilzi

I'm working in a part studio where the scale is large (on the scale of 100ft^2 in area). The loading times were very large after I added the first sketch, which consisted of two lines. After Doing more complex operations, I'm having to wait a few minutes for the change to process. Is there a workaround to improve loading times? 

TimRice

Looks like you are modeling an assembly in a part studio. In general we recommend using part studios to create or edit parts that are explicitly related. In this case you should instead construct just the sketch in the part studio and use an Assembly to insert instances of the assembly you are creating.

NeilCooke

Hi @chloe_kilzi - the scale of parts makes no difference. Can you run https://cad.onshape.com/check to make sure everything is OK. Also, check your internet connection - if you have a very high ping time, that would explain the slowness. Also, please post the URL to your doc.

tim_hess427

I don't know if size has much of an impact as complexity. Is your model really complex? 

What happens when you go to https://cad.onshape.com/check ?

For complex models, you may be able to see some improvement with changing the tessellation settings as described here: https://cad.onshape.com/help/Content/appearance_editor.htm?Highlight=tessellation

billy2

I think you should consider the ratio between the biggest and smallest. Big things are ok, small things are ok. The mix of the two might be a problem.

Since we're now PTC, we had a sail boat and then wanted to represent the gel coating which was .2mm. We couldn't represent the gel coat without upping the model's resolution. Parasolid keeps track of the global volume and I'm guessing it sizes the resolution from this. I've never had an issue with parasolids.

I guess I don't know the answer 

chloe_kilzi

@tim_hess427
I lowered the tessellation quality for all parts to course, but it didn't help. I don't think the model is that complex, and most of the regen time comes from one feature. Do you think that I could alleviate the issue by putting this feature in its own part studio and doing a versioned import? It's



My performance check was fine. (This one was run in chrome. I also tried working in Firefox, and the result was the same)

@NeilCooke

This the part studio before adding a feature that I would have expected to slow things down: 
https://cad.onshape.com/documents/73b96a3e88204a46b4c8abed/w/84600ed9c4264c1982dac1c2/e/dec788e938eb515ef909d6d5

This is after:
https://cad.onshape.com/documents/73b96a3e88204a46b4c8abed/w/8de279e209285b75d1d0be5d/e/dec788e938eb515ef909d6d5

The load time is much worse after adding the rest of the features. One of the features does have a regen time of a around 100 seconds, but the part studio usually takes around 5 minutes to load. If I make the pattern an additive feature and remove the boolean feature the load time of the pattern goes up to ~50 seconds but it still takes just as long to load the part studio.
Originally it was slow but still workable. 

TimRice

Looks like you are modeling an assembly in a part studio. In general we recommend using part studios to create or edit parts that are explicitly related. In this case you should instead construct just the sketch in the part studio and use an Assembly to insert instances of the assembly you are creating.

chloe_kilzi

duplicate