My first machine was based on this 1-pump design by John Park.
DNA LOUNDH ROBOT BARTENDER CODE
With a little code to determine how long the motors run, along with some buttons for the user to press, and some creative design, you’ve got yourself a cocktail machine.
You pair up your pumps with a micro-controller of some kind (Arduino typically) and some kind of motor breakout board to help drive the 12v motors when they get directions from the micro-controller. 12v peristaltic pumps like the one shown here are common and affordable option, though I’ve also seen people use submersible pumps like these for quickly moving juices or thicker, chunkier stuff you don’t want getting clogged in a tube (though I can’t vouch for them being “food grade”). Typically, the most reliable way to move fluid is a pump.
If you’re crazy or stupid enough to remake this particular cocktail machine, here’s what you’ll need:Īll you need to build a cocktail machine is a way to automatically move fluid from one location (bottle or mix) into another (a cup, or sometimes right into someone’s mouth). I figured, at least it’ll make a good Instructable! So here we are. But by the time I heard about the cancellation, I was too deep into this build to give up. Sadly, this year it was canceled for COVID. It’s like a Maker Faire without the kids, where every exhibit dispenses alcohol. This machine was my second entry into the Cocktail Robotics Grand Challenge, an annual event in San Francisco where machines are judged on their ingenuity, popularity, and the quality of their drinks. That’s the concept behind the VK-01 off-world bartender, my Blade Runner-inspired cocktail machine. If you can make it past its security system, you’ll be drinking like an outer space aristocrat. Lucky for you, one of those robot bartenders never made it off-world. People say the best drinks are made in the off-world colonies, by robot bartenders programmed only to serve the elite. The year is 2040, and you could use a good drink.
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