Not on the kitchen table but the day is here, both GE and Siemens are using 3d printed parts in rotating turbine parts.
Your missing the point. I have printed parts in my office and they came from companies that are worth billions and billions of dollars. No shadetree tinkerer is going to make anything of much danger with a 1000.00 printer. What that jack-wagon in Texas could be done in a Bridgeport about 10 times faster than he's doing it in print.
While we are using GE and Siemens as a comparison, how about quoting the cost of the software and the building it runs in. Let alone the cost of the education it costs to run it.
It's not going to hit the masses for 100's of years. Most machine shops, even good ones cannot afford to interpolate 5-10 axis let alone print those parts. If you want a job doing so ya better get your resume's in with those companies, and I doubt they are going to allow you to tinker with them like guys do know with the 3-4 axis employers.,
I totally get the capabilities the future, hell we will be printing machine guns in the future, all in one piece but, only if the economy will pay the freight. We are more likely to be fighting wars with handmade weapons.... than with hi tech.