Shelling a feature entails emptying it while maintaining a certain side thickness. Shelling can also be defined as the process of adding thickness to the outside of a container.
You can use the Shell function to choose adjacent tangent surfaces. This allows you to delete or offset the surfaces that are tangent to their adjoining surface at one or more borders (independently or with varying thicknesses).
The Thread/Tap instruction is the first (and most likely easiest) option ( ). This is normally where you should begin: After all, thread is right there in the title! When creating a hole, you can also add a Thread by going to the Thread Definition page and selecting the "Threaded" option towards the top.
The shell tool hollows down a part, leaving open the faces you choose and creating thin-walled features on the rest. You can shell a solid part to create a closed, hollow model if you don't pick any faces on the model. You can also use several thicknesses to shell a model.
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