3D Printing
Here we’re going to use 3D printing to do a modern twist on “lost wax” casting.
It’s a trick that’s more than 5000 years old: make something in wax, bury it in clay or plaster leaving a hole in the shell. Bake the heck out of it to remove the wax and then pour molten metal down the hole. If everything stays together, you get a metal replica of your wax object.