EC750E track drive update

The first track drive design had some problems. Notably the carrier for the planetary gear set was locked to the ring gear instead of the sun gear. Even better would be if it could counter rotate at a fixed rate to increase the output gear ratio. This is done below. The "drive sprocket" is now a paired ring wheel which also solves the problem of how to take power off the drive wheel to drive a proper sprocket since the drive wheel is not a proper sprocket.

In the picture above, the pink half of a turntable will be removed to permit a more narrow build. Power comes in from the red axle. The blue carriage on the turntable side will spin based on the planetary gear set of the turntable. This will increase the final drive ratio of the ring wheel driving the track by counter rotating the carriage of the drive wheel gear set. Finally the paired drive wheel will continue to transfer power along the green drive axle and power a sprocket somewhere along the track. At least I hope so. Once the parts that I have ordered through bricklink come in, I'll make this for real and test it out.