Building Bauble

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&rsquo;s 3D printed, sort of, but it really is solid metal &ndash; it&rsquo;s not a metallic filament. It&rsquo;s made by &ldquo;lost wax casting,&rdquo; where you 3D print a model out of…