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I saw a simulation of the Whitworth mechanism on Youtube, and decided I could convert it to a hand-cranked wood model for the kids.

The colored parts are all hard maple, the rest is white oak.

I scroll sawed the 3 gears. I generated the gear design using free program GearDXF.Exe, print it on paper, then white Elmer's glue paper pattern to gear blank, drill the axle hole, scroll saw cut the gear, then wash off excess paper with wet rag.

Grandkids should have fun with this one…........and no batteries are ever required !!

You can see a Youtube video of the model in action using this link.

For details on how I designed and build this model, see my woodworking web site using this link.

Thanks

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Comments

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2,671 Posts
Really cool project!!!
I really had no idea how big this project was. :-o
 

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4,571 Posts
Very neat, really like the no battery required.
 

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Really cool project!!!
I really had no idea how big this project was. :-o

- htl
I always include this coffee cup in my finished project photos, so people can get an idea of the size of a project…..in fact if I forget to include the coffee cup in the photo….....my friends give me heck for forgetting it :)
 

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2,671 Posts
For some reason I missed the cup as I was marveling at the engine. LOL
It was the parts spread out on the table that gave me the idea of it's size..
 

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657 Posts
Great toy for kids. Would make a fantastic Christmas present.
 
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