In the Shell command, the wall thickness vector points in which direction?

In the context of the Shell command, the wall thickness vector is oriented in relation to the surface of the geometry being modified. When you specify a positive direction for the wall thickness, it expands outward from the original surface. This means that the wall thickness is added in a direction that typically is consistent with the normal of the surface being considered.

By defining the wall thickness to point in the positive direction, it ensures that the new shell geometry will create a structure that has additional material either towards the outside or the inside, depending on how the command is configured. In practical terms, this allows designers to manipulate and control the thickness of shells effectively, aiding in the design of components while considering factors such as strength, weight, and material use. Thus, the wall thickness vector pointing in the positive direction aligns with the expected behavior of creating a shell that extends appropriately from the surface in a predictable manner.