Trying to cut small clock gears. - Page 2 - Router Forums
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post #11 of 14 (permalink) Old 10-21-2019, 01:23 PM
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I worked for decades with optometrists who do something called vision therapy. My main interest has been looking at how it trains attention, and helps build the ability to develop and internalize concepts. For example, my first job was at North American Aviation in a plant that built the Apollo. Again and again, I saw engineering drawings in which the object was really a form of a table...Leg or support, flat top, sometimes a thick top with a hole in it for a bolt, but still a table.

I worked with a couple of engineers who kept using a table type structure to build their inventions. I still have the nested tables I grew up with (antiques now, like me), and realize they formed the concept of table-ness for me. But children today don't do stuff and touch and see, and imagine as we did in the past. So they suffer a dirth of concepts, which impedes their ability to invent. Not all children mind you, but for some, a handicap.

So I've been thinking of some therapy activities that would implant concepts and the ability to visualize and use them. Think of all the inventions and ideas that arrived from visualizations and even dreams--a form of visualization. Visualizing something that does not yet exist, is often based on simple concepts extended into new arenas.

This string has me thinking about a gear board with a simple crank on a gear that the child turns, and a series of various sized and placed gears that move with the first. You would have direction and speed changes, and the activity would be to have the child observe, then predict, then explain all the different speeds and directions of movement.

Is anyone interested in making something like this? If so, I will work on making it available as an advanced therapy device. Have no idea what it would cost, but make via CNC, it would be made in batches. I could probably get a doctor to endorse it and make presentations based on the device, and the idea of concept formation.

I would also be interested in any other basic concepts and ideas on some physical, wood, device to make the concept stick. Something you see, inspect carefully, play with, touch, will stick with you for life. Maybe we could even sell this to science teachers in schools (this already happens with some devices), and it would be a high end item. I definitely see Montessori type schools wanting a kit like this.

I'm going to post this as a separate string, so even non CNC folks can give it a read, think about and make suggestions. I believe this would be something of a revolution in education, where everything is ephemeral, theoretical, read about instead of do.

Any suggestions will be appreciated. This is a pretty ingenious bunch.

The more I do, the less I accomplish.
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post #12 of 14 (permalink) Old 10-21-2019, 03:48 PM Thread Starter
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Tom,
Your idea sounds like stuff that most of the early learning toys are based on and helps children develope concepts of how things work. Problem today seems to be concentrating on cell phones to the point people don't pay attention to what's going on around them. I wish I could afford a good CNC router -- I just finished a book about doing the gears and chassis using a CNC router. The device used a program that was already written and just needed to be modified to work with the CNC device. I used to write programs too many years ago to remember any of that but it would be fun to try using a CNC device that made something that grabbed your attention.

Nice idea and hope you go with it,
Charlie
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post #13 of 14 (permalink) Old 10-23-2019, 09:11 AM
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When buying dowels, I drill a hole in a piece of scrap the exact diameter of the dowel I need and cut it down so it looks like a wooden washer that will fit in your pocket. Take that with you to the dowel supplier to check the dowel size.
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post #14 of 14 (permalink) Old 10-24-2019, 11:56 AM Thread Starter
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Quote:
Originally Posted by tcarpenter View Post
When buying dowels, I drill a hole in a piece of scrap the exact diameter of the dowel I need and cut it down so it looks like a wooden washer that will fit in your pocket. Take that with you to the dowel supplier to check the dowel size.
That's a really good idea. I already went and got the test dowel but I brought my calipers with me in my pocket and was that a pain. Years ago I did threaded dowels to use as wood set screws and also got one wood tap for making wood nuts. The dowel size is important and I've had problems in the past with their diameter so I even went to the trouble of using a small wood lathe and turn larger dowels to the size I wanted but your idea would allow me to hunt through the bunch of dowels at the store and get the sizes I need.

Thanks for that,
Charlie
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