https://forums.autodesk.com/t5/fusion-design-validate-document/long-calculation-times-for-circular-pattern/m-p/5866938#M282792 <P>If you want to post a screen shot or the model you are working on, we might be able to help with some concrete suggestions. &nbsp;There are some general rules that I've found helpful. &nbsp;However, there will always be a pattern big enough to overwhelm the system, so be careful, and decide whether you really need that geometry in your model. &nbsp;If it's just cosmetic, sometimes a decal is a better approach. &nbsp;If it's a "mesh/screen" thing that you are looking for, sometimes just using one of the mesh materials can help.</P> <P>&nbsp;</P> <P>But, if you're going to pattern the geometry, here are a few things that I've found:</P> <P>&nbsp;</P> <OL> <LI>I tend to use solid pattern more than sketch pattern. &nbsp;So, I would not try to do a 200-instance sketch pattern of your spline shapes. &nbsp;Sketch pattern is probably better for smaller numbers of instances</LI> <LI>Use the settings in the pattern command. &nbsp;Pattern Faces is faster than Pattern Features, if that works for you. &nbsp;Within Pattern Features, there are 3 Compute Options. &nbsp;Optimized is the fastest, Identical is next, and Adjust is the slowest of all (but most accurate)</LI> <LI>Sometimes using the "Body" Pattern Type can be your friend. &nbsp;Create your shape as a separate body, then pattern than body. &nbsp;Do a single Join or Cut after the pattern. &nbsp;Or, if it's a Join, sometimes I don't even bother to Join the shapes. &nbsp;It's perfectly OK for a part to have multiple bodies in it - if these are in a component, they will still act as a single body when using Joints, etc.</LI> </OL> <P>Hope this helps a bit.</P> <P>&nbsp;</P> <P>Jeff Strater (Fusion development)</P> <P>&nbsp;</P> Mon, 19 Oct 2015 00:47:47 GMT jeff_strater 2015-10-19T00:47:47Z