Hand-Operated Wooden Worm Gear Model

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Project by DaleMaley posted 02-11-2013 11:23 AM 10181 views 13 times favorited 13 comments Add to Favorites Watch

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.

-- Dale, Illinois,

13 comments so far

View ChrisK's profile


2076 posts in 4574 days

#1 posted 02-11-2013 01:07 PM

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

-- Chris K

View JoeinGa's profile


7741 posts in 3500 days

#2 posted 02-11-2013 01:49 PM

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

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View helluvawreck's profile


32122 posts in 4359 days

#3 posted 02-11-2013 02:21 PM

This is a real nice conversation piece. Nicely done.

helluvawreck aka Charles

-- helluvawreck aka Charles,

View nitewalker41's profile


470 posts in 4185 days

#4 posted 02-11-2013 03:54 PM


-- "older I get, the more fun I have"

View Ken90712's profile


18123 posts in 4681 days

#5 posted 02-11-2013 05:25 PM

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.

-- Ken, "Everyday above ground is a good day!"

View DaleMaley's profile


596 posts in 3728 days

#6 posted 02-11-2013 11:56 PM

The gear ratio is 32:1.

There are 32 teeth on the spur gear.

-- Dale, Illinois,

View RichCMD's profile


430 posts in 3434 days

#7 posted 02-12-2013 01:38 AM

Very nice. I like it a lot.

-- Ride the bevel!

View TopamaxSurvivor's profile


24932 posts in 5168 days

#8 posted 02-12-2013 03:27 AM

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

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View Ted78's profile


415 posts in 3492 days

#9 posted 02-12-2013 05:27 AM

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.

-- Ted

View Fishinbo's profile


11362 posts in 3668 days

#10 posted 02-13-2013 07:50 PM

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


View mcoyfrog's profile


4757 posts in 5087 days

#11 posted 02-24-2014 10:40 PM

I dig your cup in all your photos

-- Wood and Glass they kick (well you know) Have a great day - Dug

View DaleMaley's profile


596 posts in 3728 days

#12 posted 02-25-2014 12:04 AM

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 :)

-- Dale, Illinois,

View mcoyfrog's profile


4757 posts in 5087 days

#13 posted 02-25-2014 11:05 PM

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

-- Wood and Glass they kick (well you know) Have a great day - Dug

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