I'm trying to build a truss out of tetrahedral cells. I'm extruding or revolving one link at a time, then using mirror and circular patterns to repeat the elements. The attached file shows what I have so far. It's painfully slow.

I suspect it would be a lot easier if I could make one 3D sketch of all the links, then generate a feature in which each sketch element is thickened into a solid. But I sure don't see any features like that in the menus or in the Help doc. Can Solidworks do this?