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Utility Cycling Want to haul groceries, beer, maybe even your kids? You don't have to live car free to put your bike to use as a workhorse. Here's the place to share and learn about the bicycle as a utility vehicle.

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Old 07-22-10, 02:28 PM   #1
Beerslinger
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bike powered butter churn

I'm trying to think of a way to build a bike powered butter churn. My wife has started making homemade butter by shaking whipping cream in a jar. It works but takes a while and it's alot of shaking.

I'm interested in designing a bike powered shaker of some sort. I'm thinking of a roller attached to a wheel which has an offset arm, something like a train. as you pedal it rotates the arm in a circular motion, shaking the jar.

I'm not very inventive though, so if anyone has any ideas to help me out that would be great.
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Old 07-22-10, 03:40 PM   #2
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I was thinking if I built a large a-frame stand to hold a spare wheel, that I could build a bracket/holder that I could strap the jar into and then hop on the trainer and every spin of the wheel the jar would shift slightly, and gravity would help shift the liquid.

Opps, nevermind, just realized it would be the old full bucket of water swinging around and it doesn't dump trick.
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Old 07-22-10, 03:43 PM   #3
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going for a manual churn might be a step up.....work but less than shaking as a I recall from doing both as a kid

http://www.enasco.com/product/C26345N

or

http://www.kickstarter.com/projects/...er-churn/posts


or maybe find a really rough trail and ride it a few times
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Old 07-22-10, 04:31 PM   #4
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Just so happens I enjoy old technology. You can just a revolving barrel like the Star barrel churn on this webpage:

http://dairyantiques.com/Wood_Butter_Churns_1.html
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Old 07-23-10, 10:28 PM   #5
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Do you own a blender? Or a mixer? I just buy a quart of cream and put it in the Kitchen Aid mixer, turn it on and come back when I hear it thumping around. Take the lump and press it out between paper towels and rinse under cold water. Fold in salt to taste. Done.
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