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I have made a lot of hand-operated wood models. The book Building Wooden Machines by Bridgewater & Bridgewater has a neat pattern for a worm gear model.

To add some color to the model, I used padauk for the 2 bearings and purple heartwood for the crank. I also dyed the pegs on the bearings. The base is maple and the gear red oak.

The book called for whittling out the worm gear with a sharp knife. Instead, I used the Dremel with 2 different sizes of sanding drums to cut the worm gear. I much prefer the Dremel method safety wise compared to the sharp knife!

I made a YouTube video of the model in operation.

If you want to read more about my trials and tribulations of building this model, see my web site.

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Pretty Cool. What is the ratio? I cold see that in a candy dispenser and a marble machine.
 

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First thing I thought of too Chris. A candy machine!
Great job Dale, you build some cool toys!
 

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This is so cool. way to go I will be buying the book always fun to make stuff like this. I dont have a lathe so seeing that you accomplished this without one is even better. Thx for sharing and nice web site you have as well.
 

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The gear ratio is 32:1.

There are 32 teeth on the spur gear.
 

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Nice work. Looks like a good idea to incorporate into a marble machine drive ;-)
 

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Nicely done. I have that same book, "Making More Mechanical Models" but for the life of me I can't locate the book I assume was written prior to this one.
 

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Really enjoy your wooden machines, fun to have and need great talent and skills to create one.

-www.sawblade.com
 

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I dig your cup in all your photos
 

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I think the first woodworking project I did, I emailed photos of the finished project to friends. One of my buddies complained he could not tell the scale of the item. So, I added the coffee cup to all my finished projects.

Then I forgot once….....and sure enough the same buddy gave me a hard time for forgetting the coffee cup :)
 

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LOL funny. Thats what tells you that your friends care. hee hee Me and my buds harass each other all the time.
 
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