Project Information
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
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
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