To print you need all the raw materials so i've ony seen it done with small non-bake cakes. I highly doubt they can print even simple machines as you cant just squeeze circuit's into a tube. they really cant do anything that isn't just layers of material. Sure someone could print a mold but then you would need to hollow it out and add add circuitry and complex parts yourself manually. they really cant do much right now besides some non-cooked food items, and solid shapes/simple molds. wait till the technology is improved save your money, unless you just want something to play with and love non-baked treats.
Clearly you have no idea what you are talking about. I am sure there are plenty of people around here who know more than me on the subject, but I could address a few points.
"To print you need all the raw materials so i've ony seen it done with small non-bake cakes." What? Of course you need the raw materials. You can't make something out of nothing. 3-D printers usually take as their input a sort of plastic wire, which is melted and placed by the printer.
"I highly doubt they can print even simple machines as you cant just squeeze circuit's into a tube." Go do some more google searching for things made by 3-D printers, they can be quite complex.
"Sure someone could print a mold but then you would need to hollow it out and add add circuitry and complex parts yourself manually." You can print hollow structures with a 3-D printer. If you do not see how that works, then you should go back to kindergaten.
"they really cant do much right now besides some non-cooked food items," I don't think you understand what 3-D printers are used for, nobody prints any food items.
I think you are trolling, nobody could possibly that stupid/misinformed, right?
