[Andy Brockway]

Originally Posted by JVN

That's affirmative.
With the "ROBOT-SPROCKETS-2005" Kit ($80 + shipping) you can construct the 4WD configuration I show on the right in my above post.

Isn't that awesome?
Less than $100 for a fully working 4-motor, 4WD base.
It's a brave new world.

JV

You will also need the wheel adapters or make your own. IFI is currently out of stock. I was planning on making four plates and using only one wheel adapter per wheel. The plate would go on the opposite side from the sprocket. There are drawings for wheel adapters on the FIRST CAD library.