New to ST3 Sheet Metal is the Etch feature. It allows text or other sketch elements to be created on sheet metal faces which will then be transformed with the model when flattened. When the Flat Pattern is saved to DXF, text is translated to a "stick" font engraving ready!
New Closed Corner types have been added to Sheet Metal such as U & V shaped, Square and Mitred.
Tabs and PMI can now be added to the flattened Sheet Metal model and they will not display in the folded model. This flattened model can then be saved to JT.
Interpart relations are now shown in Part & Sheet Metal Pathfinder allowing easier navigation and investigation. The listed items can include: Context Assembly, Included Edges, Feature Keypoints, Interpart Copies, Linked Variables, and Reference Planes. It is even available if the part is opened outside of the context of the assembly.
Interpart relations are also shown in Assembly Pathfinder showing a clear indication of whether the link is Driving the selected component or the selected component is driving something else. Also new is the ability to Freeze or Thaw Interpart links. Freeze will allow you to inactivate links for instance on release files to prevent updates and Thaw will allow you to reactivate them later so they will update when performing a revision.
Display Configurations have received an overhaul and there are several new capabilities: