I made something that I think is pretty neat, and I want to tell you about it.
This is a little hot air balloon made out of alternating layers of brass and bronze that stack together with these angled facets:
It’s 3D printed, sort of, but it really is solid metal – it’s not a metallic filament. It’s made by “lost wax casting,” where you 3D print a model out of resin, then pack it in plaster, and then once the plaster dries you melt out the resin and fill the void with molten–
You know what? This is neat, but this actually isn’t what I wanted to tell you about.