I am looking for ideas for some kind of device that I could build from simple elements (wood, stainless steel screws, bolt for axle) and possibly some woodworking (I have a router) in order to assist me crush chicken bones.

I like this device:


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but I was thinking of something more agressive, by having the screws protrude more from the rotor, and another layer of screws on the vertical panel to provide a good shredding action, and a high torque with the help of reduction gears. Would this be a good starting point ? I'm not sure which force is required to break chicken bones..

  • It looks like an instrument of torture, I hope you won't put someones fingers inside – vladiz Feb 1 '16 at 22:47
  • How finely do you want then crushed? – Carl Feb 2 '16 at 17:16
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    I'm not sure that you're looking for a life hack, more like the right tool for the job. – Carl Feb 2 '16 at 17:16
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    @Carl I agree. Life hacks are supposed to be about common, everyday problems. I have never needed to crush chicken bones more efficiently, and I suspect I'm not the only one. – BrettFromLA Feb 2 '16 at 18:08
  • @BrettFromLA Where can I find what's on topic lifehacks ? – alecail Feb 2 '16 at 21:14

I was thinking about something like a big corkscrew as core, but when searching for pictures to illustrate my point I came upon ice crushing machines that might do the trick: Leopold Vienna Ice Crusher


  • I like the shape of the teeth. I'll make a small scale experiment with just one tooth and scale up if it's working.. – alecail Feb 1 '16 at 23:27

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