[sanddrag]

I think the Dewalts are the easiest, cheapest, smallest, and lightest way to get that much reduction (I presume you're going for the 12:1 ratio).

However, here are some things I would change if it were my design:

-Reduce the size of those gears and their hubs a considerable amount.
-Move the motors closer together and push that gear out from being inline. You'd end up with a triangle shape of sort with the center of each gear being a vertex of the triangle. (does anyone get this or did I make it too confusing? Sorry I can't describe it well)
- Find a better way to mount the motors and planetary combos. I think the current method isn't going to cut it. I think in the NBD setup, there is a plate between the CIM and DW tranny. I would modify this plate to look something like the ones in the KOP and mount the CIMS that way.
-How thick are the gearbox plates? I'd say anything over 1/4" is overkill.

PS. I would stick with the two dewalts; I think 2 CIMS into one would fail after a while.

Anyway, looks good and keep up the great work!