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Video: Arduino & Raspberry Pi Drink-Mixing Robot

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78RPM
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Platinum
Re: Nice machine
78RPM   1/31/2014 3:50:52 PM
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I was impressed with the cross discipline skills involved.  My Dad was a tool and die maker and taught me some lathe and milling machine technique so I can appreciate the craft.  Then you added the Pi and Arduino skills.  Was that a Charlieplexer I saw at the top of the montague at 2:41?  What kind of valves were used?

taimoortariq
User Rank
Gold
Drinkmotizer
taimoortariq   1/31/2014 3:36:51 PM
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Nice Work Cabe, the project video was certainly refreshing to watch. I really liked the concept of the whole project. Simple yet quite useful. You can certainly add a commercial value to it, as pointed by Elizabeth.

William K.
User Rank
Platinum
An obvious reason that you didn't mention.
William K.   1/31/2014 9:46:01 AM
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Cabe, this is indeed a really neat creation and it is especially good to see that an editor is experienced in the same realm that he is writing about. That gives you a 40DB jump in credibility. Good job on a neat machine.

As for why you chose to use individual bottles insted of a manifold, it is clear that your choice is a lot simpler to keep clean, which is important in food and beverage handling equipment. And it undoubtedly reduces waste as well, which reduces the cost of ownership. Two very good reasons for your choice.

Now here is a suggestion for improving the servo-system performance, which is to add another motor, such as a brush-type DC motor, to provide a bit of torque assist during the moves. Not enough to be the prime mover, but just enough to assure that the stepper would not be slipping steps. The drive voltage could be derived from the stepper speed command, scaled so as to avoid slipping steps. I realize that it is a "way outside the box" suggestion, but those ideas have resulted in some impressive successes over the years. 

But you might need to anchor the glass in the carrier more securely.

Cabe Atwell
User Rank
Blogger
Re: Cool party favor
Cabe Atwell   1/31/2014 3:43:12 AM
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Thanks everyone! 

The Drinkmotizer was a fun project. I write, so why not write about it myself? Plus, I wanted to clear up the question of why I used the bottle like that...

Yes, do see Project Goldie. It shows my first attempt at animating my cartoons.

Another project I made was for Halloween last year, the Scary Door. Watch the video here.

I didn't write about them all though.. check out my New Year's Eve countdown timer and fireworks launcher.

 

Cabe

Nancy Golden
User Rank
Platinum
Re: Cool party favor
Nancy Golden   1/30/2014 7:56:02 PM
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Charles, you should check out Cabe's Project Goldie

"It's simple, bottles are classy. Ask yourself, would James Bond get a drink from a glorified self-serve soda machine? I wanted to keep the liquors in their original bottles. I also wanted to see the liquid pour out and the bubbles rise." Can't argue with that logic - great job Cabe!

Charles Murray
User Rank
Blogger
Re: Cool party favor
Charles Murray   1/30/2014 6:37:48 PM
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Very cool, Cabe. This is a first. In my years on Design News (which is a lot), it's the first time I've been aware of an editor writing about his or her own invention. Fun video, too.

NadineJ
User Rank
Platinum
Re: Nice machine
NadineJ   1/30/2014 3:20:38 PM
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The video is fun.  I've seen automated wine bars showing up at health clubs.  Seems like an unlikely place but people love it.

Rob Spiegel
User Rank
Blogger
Nice machine
Rob Spiegel   1/30/2014 8:58:22 AM
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Good going, Cabe. I particuarly liked the video. Obviously, you saved the Long Island Ice Tea for after you finished the gadget. This would ahve been a good contribution to Gadgwt Freak.

Elizabeth M
User Rank
Blogger
Cool party favor
Elizabeth M   1/30/2014 7:19:09 AM
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Wow, Cabe, I am impressed! I didn't realize you were such a talented inventor. This is quite cool and could certainky have commercial value, no?

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