My son bought a 3-D printer and has been playing with it ever since.
He's been testing it and working with it to see what he can do with it.
This is a electric faceplate that he designed and printed.
Now he's going to use it to make molds and make some more.
When it came out of the printer, this is what it looked like.
You can see the resin at the back - which shows how it printed. Then he cuts off the back and wah-lah, it's done.
He's made a few other things, but this is his new toy and he's just having fun playing with it.