3d printers are complete worthless. Everything we make from them can be done in real life, without using any computerized effort whatsoever.
I will admit, yes their are things you can build with it, that looks cool, but your just relying on a technology that has been around forever. What they are selling us is the most undeveloped ( not even zygote ) of printers, they have printers that integrates water cutters, and bio-tech. Currently they are in big-boy stage of development. I would love to get my hands on one of those clone machines.
the true nature of these printers is to make things like human hearts, and other organ body parts. Currently medical doctors have been able to print hearts, lungs, etc with these things. They are clear as flesh has no real color.
By you purchasing these printers, you create popularity, for these products. I say ignore the damn thing, because 10-20 years later they will have these things in hospitals. Complete waste of money. Anyways your fun your time. money in mouth, money out the shoot.
It does not matter by that time people will be a bunch of shaky elderly people, with no brains. Damaged from over consuming, and over OBEY.