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I have built many hand-cranked wood toys for kids to operate and I display them at community events in normal years with no virus.

I got the idea to have a male golfer make an easy shot up a hill….....and a female golfer who makes a looping and much more difficult shot. After much testing, I found out the man could not consistently hit a straight shot…....just like in the real world with ordinary golfers !! So, I switched gears and had both golfers putt into a sloped green where the ball always goes in the hole.

I have built a lot of wood locks, and they use an Ash spring to operate. I borrowed the ash spring idea….where a cam bends an ash spring…...then when the cam releases the spring…......the golfer swings and makes the putt.

I used 2 nuts on a string…....plus gravity….....to return the golfers to their home position after putting.

The model seemed to like to operate at about 28 RPM, so I designed a 4-gear set with a 4:1 speed reduction ratio. Kids like to cranks stuff fast, like 100 RPM, so with a 4:1 reduction ratio…..the output to the golf crankshaft will be about 25 RPM.

Designing and building a ball return chute that always works 100% of the time with 1/4" diameter ball bearings was more of a challenge that I thought. It took me 2 design iterations to get a design that works 100% of the time.

For more details on how I designed and built this golfing automaton, see my woodworking web site.

I made a YouTube video of the model in action. You can see it using this link.

I uploaded my design to the Sketchup Warehouse. You can use this link to access it.

I think the kids…........and probably some adults will enjoy this one :)

Thanks

Gallery

Comments

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Nice "visual art"! As a kid I'd always gravitate to these type of displays, full disclosure on how it all works 8^)
 

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It's always fun to play with it….to make it, especialy, I soppose
 

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Now if I could just find somebody to get on their hands and knees and find all those 1/4" ball bearings I accidentally dropped on my shop floor when I was de-bugging the model :)
 

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That's very interesting and fun! Nice build… Yea, for the kids in all of us. Great application…
 
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