Rib and web features

Use Rib to create ribs (thin-walled closed support shapes) and webs (thin-walled open support shapes) using an open or closed profile.

Ribs can have a thickness normal to the sketch plane and extend material planar to the sketch. Ribs can also have a thickness planar to the sketch and extend material normal to the sketch plane.

Ribs and webs are often used in molds and castings. In plastic parts, they are commonly used to create rigidity and to prevent warping.

Define the cross section of a rib or web using an open or closed profile. You can project the profile to the next face, define its direction (to specify a rib or web shape), and thickness. You can add a draft or boss features to webs.

To create a rib network, specify multiple intersecting or nonintersecting profiles in a sketch. The same thickness, and draft if specified, is applied to the entire network.