There’s been some good .STL manipulation tips in this week. The first one is called stl_tools, and it’s a Python library to convert images or text to 3D-printable STL files.

To take Copilot 3D for a spin, browse to the Copilot 3D website and sign in with your Microsoft account. To get some inspiration, you can view the existing 3D models generated by other people.

There are many third-party apps available for Mac that will batch convert images for you (Permute is one example). And then there's Preview, the powerful file viewer that's built into macOS ...