How to Create a Top Down Assembly in Solid Edge

Solid Edge offers two basic ways to design an assembly: top-down and bottom-up. Bottom-up design refers to building individual components separately and then putting them together to build a final overall assembly. Top-down assembly modeling is an assembly-centric method, which starts at the highest level possible-individual parts and sub-assemblies are defined within the context of the overall assembly.
Learn more about assembly modeling in Solid Edge at www.plm.automat...

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that's creating a piece in a top down assembly, not creating a top down assembly