Topics created by caiamalo

Your shape has no thickness. It's just a surface. Faces in SketchUp have no thickness. In order to be considered a solid it needs to have a volume. The Surface Border message is referring to the perimeter of the surface.

Screenshot - 3_26_2021 , 5_53_38 AM.png

If you want to use Slicer or the Solid Tools, it first needs to have thickness. I used Vector Push/Pull here.
Screenshot - 3_26_2021 , 5_56_20 AM.png