From Photogrammetry to 3D Printing
Follow the basic Photos to 3D Data guide to generate and export a mesh:
3D Printing at its most basic requires a closed mesh.
Most likely the mesh that has been generated is not a closed mesh, the 3D Printing section of this Knowledge Base provides resources on how to close a mesh.
To learn more about 3D printing. Please refer to our 3D Printing guidelines: