[Jnadke]

That drive system is prety neat...


Two sets of wheels, each a different diameter. Makes it kinda like a transmission, only easier. Do you have both sets of wheels engaged together or separately? I can see slight problems if you try moving when both sets are down...

I see the levers in the middle to change the wheels... are those motor driven or pneumatic driven?

Engaging them separately wouldn't be a whole lot harder than together... just use gears instead of sprockets/chains. Though, you'd need a coupler between the gearbox and wheels to handle the shock...


For those that have no clue what I'm talking about... see how the small wheels are touching the ground, and the big one's are up in the air? It's kinda like a "poor man's transmission". Both wheels spin at the same speed, but since one has a larger circumference, it will cover a greater distance than the smaller one's. Therefore, they can engage either wheel and have a 2 speed robot. The other wheels will just spin freely. Very little power will be lost because of very little friction.



Hmmm..... this gives me a few ideas.... with the right gears, you could do the same set-up such that when both sets are down, they have high-torque, high-traction (even though the diameter of the wheels are different, rotate them at the same speed). Then, when the larger wheel is "down", it actually engages the gear of the smaller wheel, producing a higher-speed.

That'd be quite a feat, but it'd be pretty neat to see. When the faster speed is engaged it would look something like an I-Bot but with a large wheel on the bottom...