Cheap gearboxes (DeWalt and Globe) for Offseason project

[dbonar]

RS775 motors are mostly selected due to cost and the fact that I have RS775 motors and lots of motor controllers that can deal with them. There is no need to be FIRST legal on any of this; in fact I'm leaning towards 24V operation. Heat, especially near stall, is a serious issue but I'm looking at ways to add extra fans independent of the motor fans.

The project started as a test bed vehicle for our programmers -
1. Create a mecannum drive platform since we've never done that in LabView.
2. Integrate sensors and vision processing to allow for better autonomous actions

However its also been handed to me, as the slightly more mechanical sponsor, to see if it can be expanded to either a ride on or at least able to complete a 20 minute drive time in autonomous mode. So I'm looking at figuring out if we can reasonably move around 100kg (it might be much less but the first pass at the design is for the worst case ride on situation) with all 4 wheels independently powered.