Organic forms making Onshape lag

David_Kirshoff

I am modeling a series of organic forms for lighting fixtures. My workflow is to model these forms in blender or another organic sculpting program, and them import an .slt into onshape to add fitments and channels for wires, mold registrations etc - things that require real dimensions.

When I work with these forms in Onshape it lags to the point of being nearly unusable. Not sure what it is exactly about these forms - why do they lag when another model with many parts does not? Is it the complex mesh? Is it something with my gpu?

Any thoughts would be helpful, thanks!

Paul_J_Premakumar

Hi David,

 >> When I work with these forms in Onshape it lags to the point of being nearly unusable.

Can you elaborate on what you mean by "lag" - is it document open, interaction (pan,zoom,rotate), editing feature? The answer depends  on the operation being impacted.

We have a couple of links to help diagnose this issue

1. https://cad.onshape.com/help/Content/performance.htm?Highlight=performance
2.  https://cad.onshape.com/help/Content/performance_panel.htm?Highlight=performance panel
3. https://cad.onshape.com/help/Content/webgl.htm?Highlight=graphics performance


Paul

billy2

@David_Kirshoff I understand the desire to design inside another surfacing package. Have you ever thought about the parametrics inside OS? Most designs I've worked on change and it's nice to have everything update when that change comes along.

Evan_Reese

I'd guess something about a complex stl mesh and mixed-modeling is the culprit. You could use something like Rhino or Power Surfacing to convert the mesh to a nurbs object you can import, then it's not just a dense mesh anymore.