You spend hours on a model, export it, and send it to the printer. Forty minutes later, the print becomes a tangle of ...

Hidden geometry errors can wreck a print and MeshLab reveals invisible triangle faults then heals meshes with precision tools ...

If you think about it, STL files are like PDF files. You usually create them using some other program, export them, and then expect them to print. But you rarely do serious editing on a PDF or an STL.