The drive gears are made of 1" nylatron plastic. A very strong material with a lubricant impregnated into it. Here is the blank : 8 inches in diameter.

Using a 1" wood drill bit and hack saw and a belt sander I formed the main drive gear. Several hours of work and viola a gear.

The Track was split down the middle. Using a zip cut disk and lots of time I was able to produce two mirrored tracks.

I will start with two modified treadmill motors to power the mover. The cooling of the motors is important and the fans, flywheels will be replaced with a better system.

Here you can see the heavy flywheels have been machined off.

These motors combined will develop 3 hp at 3600 rpm.

The drive motors will be connected to the main gear by a 15.9 to 1 reduction. Here is the first cut done on my cnc machine.

Here the machine is cutting a 40A49 sprocket from 1/4 " nylatron flat stock. This material is strong and cuts easily at low speed. I am using a 2mil end mill cutter.

The finished sprocket finished in 23 minutes.

Two sprockets and I move on.

The are the hubs partially assembled.

Here is the second reduction gear assembly. The motor pinion has 13 teeth and the green nylatron has 72 teeth. This reduction is ~ 5.54. Total 5.54 X 2.88 = 15.9 : 1 .

Track Mover Speed Estimated:

0 to 7.386 MPH

6200 Motor RPM / 15.9 gear reduction = 390 RPM Main Drive Cog.

390 RPM / 60 = 6.5 RPS

6.5 RPS X 20 " Cog diameter = 130 Inches per second

130 inches per second of the track = 7.386 MPH

Average walking speed = 3 MPH