[DaveMakesStuff] uses 3D printed test tubes for plants and similar purposes, and he’s shared how to make them on a 3D printer, complete with different models each optimized for different nozzle sizes.

What if you could take a simple 2D image—a sketch, a logo, or even a photograph—and transform it into a fully realized 3D model, ready for 3D printing or digital design? For years, this process ...