Making changes to an assembly during the design phase usually involves adding and positioning new components, changing the positions of previously placed components, or modifying relationships that may cause adaptive parts to resize or change position.
When you open an assembly whose components have changed, a message asks if you want to update. If you answer Yes, the assembly components are recalculated to reflect changes you or others have made to individual parts or subassemblies since last opened the file. If you answer No, you can use update or refresh later.
When you choose Save or Save All, changes to files are applied to the original files in home folders. If you enter a different file name or folder, a new file is created to store the changes, and the original file is unchanged.
The file types used in the assembly design process have the following extensions:
Use Undo to try new things without some of the risk:
You must save the file again to preserve the current state of the assembly.
Often, you want to see the results of changes to component positions and edits as soon as they are made. However, you may want to delay update when you are placing a large number of constraints, for example. When Defer Update is on, you can place many constraints, but the components will not reposition until you click Update.
The Defer Update option is set on the Assembly tab of the Application Options dialog box.
In large assemblies, you might be editing a component deeply nested in the browser (assembly tree). You can quickly move to a higher-level assembly when finished editing.
Choose one of the following to specify where you want to continue editing. On the Quick Access toolbar: