Glb.db -

If nothing lights up, your mesh is a perfectly solid, closed piece. : Go to File > Export > glTF 2.0 (.glb) .

In the export settings, ensure "Include > Selected Objects" is checked if you only want that specific solid piece. 💡 Alternative Methods glb.db

In Edit Mode, go to .

Use the modifier to physically fuse overlapping parts into one continuous surface. If nothing lights up, your mesh is a

If there are gaps between the parts, they aren't technically one solid piece for things like 3D printing. If nothing lights up