pic: Gear Drive Concept

[cbale2000]

Originally Posted by AustinH

Another iteration:

http://i.imgur.com/YQCeY48.jpg?1

60t gears running down the whole length. A stock vexpro 2-stage 2 cim ball shifter can be face mounted to any of the hex bearings depending on space and or orientation needs. 10wd/6wd 1/8in drop center - flip the chassis upside down for 8wd 1/8in drop center. All of the gears are installed via reciprocal slots in the tube.

Stock ratios: 3.61:1 High, 8.33:1 Low. JVN Calc says that on 3.25 wheels, its a 16.6fps / 7.3fps split.

I'm curious, what size wheels are you using now, and what are the dimensions of the frame? This is starting to look more and more like our robot this year...