In examples 2 & 3 I noticed that the drinks go into a reservoir and then get dispensed out. What is this reservoir called and where can I find one?
I'm thinking of going with a design like the one in example 1 but the conveyor concepts (in examples 2 &3) are nice too. Which design would be more practical to hold 12-15 bottles?
I'm looking for some guidance on what materials I would need, where to get them, what they're called, and which pumps are best (and how to control those pumps with an Arduino if they're greater than 5v).
I actually knew an Engineer from Texas over 40 years ago that had something similar to #1 in his (huge) camper. His was mounted into the countertop, much like the spigot for his sink (actually right next to it). I was interested so he showed me how it worked. He had all the bottles under the sink, pumps like those shown in #1, but ran all of the little tubes into what was actually the faucet stem of an ordinary kitchen faucet. He didn't use a funnel. Each tube ended about a millimeter above the normal screen in the stem.