Use the SketchUp Extension Manager to install both LibFredo6 and Joint Push Pull.
Acts like a piston, pushing everything in one specific direction regardless of the surface angle. Round Push Pull:
: This feature allows you to add uniform thickness to a surface, effectively turning thin planes into solid 3D volumes. joint push pull interactive free
The extension is bundled as an interactive suite containing several distinct sub-tools. Each mode uses a different mathematical method to calculate the direction and behavior of the generated geometry: 1. Joint Push Pull (J)
: Extrudes surfaces while rounding the resulting edges, similar to the "RoundCorner" plugin. Use the SketchUp Extension Manager to install both
If you are not ready to commit, there are "free" alternatives to achieve a similar result. The built-in in SketchUp Pro can be used in creative ways to add thickness to complex geometry. Additionally, the workflow of Grouping or making components of individual faces, extruding them, and then moving them back together can mimic some results, though it is an extremely labor-intensive and time-consuming manual process.
Enter the holy grail of hard-surface and organic modeling: tools. The extension is bundled as an interactive suite
In native SketchUp, curved surfaces do not actually exist. They are comprised of individual, flat, hidden facets.
You pick a direction vector (X, Y, Z, or a custom line), and all selected geometry follows that exact path. 4. Normal Push Pull (N)
Thicken curved walls, inflating organic shapes, and expanding arches.
The most viable path is :