Glb.db

If there are gaps between the parts, they aren't technically one solid piece for things like 3D printing.

If your GLB file has errors or isn't behaving like a single object, you can use specialized fix tools to automate the repair process:

Use the modifier to physically fuse overlapping parts into one continuous surface.

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

: If you are using these for game development in Godot, you can set the mesh to "Save to File" in the import settings to treat it as a separate, distinct asset.