Here are some samples of gears you can make using my technique. I have kept this to myself for a few years while learning more about it, but decided to sell the technique to educate others on how to do this and make some extra money. The technique enables you to make any of the gears of the type shown in this video by using either a scrollsaw or a tablesaw. You can make straight-tooth or helical gears with ease. If you purchase the technique, I will include an Excel spreadsheet calculator that calculates all the needed dimensions using these input parameters: number of teeth, diametral pitch, pressure angle, and helix angle if you want helical gears. I will also include a guide for elliptical gears as seen in this video.
There are no paper patterns to glue to wood and saw around, the correct involute tooth profile is automatically generated. This technique is very simple once you see how it works. There is no need for expensive cnc routers or lasers or any computer-controlled tools. If you have a scrollsaw or tablesaw, the ability to cut accurately sized circles from plywood, and a computer – then you can do this. You won’t find this technique anywhere else, I have looked thoroughly and know it is my own original idea. The price is $24.99.
Visit my web site http://www.stevengarrison.com/ from that home page click on the “gears” link. I can also be reached by email stevegarrison769@gmail.com
Duration : 0:2:11
[youtube jmFG6unpAw4]
very cool, thanks
very cool, thanks
Each stage triples …
Each stage triples the speed, so 1 turn of the crank x 3 x 3 x 3 x 3 = 81 turns on the output. So the ratio is 1/81 or 0.0123456.
whats the gearing …
whats the gearing ratio of that last gear box?
No, it is a bronze …
No, it is a bronze bushing.
did put ball …
did put ball bearing on this wooden gear
Thanks for the …
Thanks for the reminder. I reduced the price to $24.99
Thanks! I don’t …
Thanks! I don’t think they have to be any particular aspect ratio. I have seen pictures / videos of elliptical gears with different ratios that were even more out of round than these. I have also seen some that had axles through their focus instead of through the center. The timing has to be just right, and the pitch perimeters equal to avoid binding. Or you can cheat and let one gear have a floating axle. All the gears shown here have fixed axles though.
Very cool. For …
Very cool. For elliptical gears, do you need specific sizes of gears? A specific major axis:minor axis ratio, perhaps?
use them to cast …
use them to cast metal ones, or to test fit before production.
cool. you could …
cool. you could use it as a crank start when you build your first turboshaft engine.
Thank you. The ” …
Thank you. The “double pinion” is also called a chevron or herringbone gear. They can handle more load than regular spur gears and are said to be less noisy. I have read about them online. The ones I have made are simply two helical gears one left and one right hand put together face to face. These are as strong as helical gears, but without the end thrust on the shaft.
Nice job. did you …
Nice job. did you know that that double pinion was invented by Andre Citroen, and he used the picture of the track of the theeth to make the Citroen logo?
so…you made a set …
so…you made a set of gears from wood…now what do you do with em?
I want a wooden 5 …
I want a wooden 5 speed tranny for a 98 mitsu how much? maybe you can build it better than mitsubishi did, with wood. Just kiddin cool stuff.
hi. these are …
hi. these are really great. the last two pieces are amazing. thanks for sharing. never seen ellyptical gears
very intresting and …
very intresting and great wood working.Keep up the good work.
that’s cool, but …
that’s cool, but how do you do it?
You’re right – this …
You’re right – this shows nothing about how they are made, so I changed the title.
very cool. but how …
very cool. but how do you do it? like the title says ‘making’ where is the making part?
That is too cool
That is too cool
:59 is so trippy
:59 is so trippy
Love the elliptical …
Love the elliptical gears! And you made great use of annotations.
That is @#$%ing …
That is @#$%ing cool!
that is cool.
that is cool.
Thanks! Sorry to …
Thanks! Sorry to hear you got sick and unable to work with wood. I’ve never done any cnc routing, but if it enables you to do what you love then go for it!