This is very exciting to see!

I consider "printing" food to be the Promethean fire of this tech and this is getting us closer.

I'm also excited about the idea of in home manufacturing, but I can already see the drawbacks of that while we perfect it...

Loud appliances/equipment, excess power usage, probably such that most homes won't be able to handle the load without upgrades, which are usually expensive in the early stages, not to mention all the cheap junk to sort through to find the stuff that lives up to the hype.

None the less, it's a clear, and defining, milestone in the evolution of our species and those don't come cheap.

And regarding the Star Trek replicator... it's just a matter of complex molecular manipulation, which is something we already do, that's probably just a matter of time... however, would we even need them? If we have such mastery over matter on a molecular level we can just manifest a chicken dinner out of thin air, why would we still need to ingest anything? We could probably just breath nutrition by that point.

This is where one could get into some seriously freaky sci-fi speculation...

If we don't need our stomachs anymore, what else could we use that space for?

I'll stop. This is ridiculous even for me. Lot of fun, though. :D