3048's tri-lobe drive train and a video request?

[GeeTwo]

Beautiful sheet metal work on the tri-wheels, and nice staggering of the front and rear to reduce the spacing between the chassis plates.

What's the relative gearing between the 4" wheels and the "metawheels"? It seems to me that you'd have to gear very low for the metawheel axle and back up for the individual ones.

How does it handle on level carpet? It looks like a bear to turn (long wheelbase and narrow track).

I see that you are using KoP chassis inner plates, inverted to get the drive axle higher (and the motors lower). Why did you use a AM14Ux inner plate as the outer plate? The flange would be part of your frame perimeter, making bumper mounting more difficult. It looks like all of the pre-drilled holes you used are in both plates.

Are those brackets on the top front to mount bumpers? It looks like they'd be more than 12" off the carpet when the metawheels are rotated to the high position (so that there are only four wheels on the carpet). Is that an optical illusion?