so, do you think Vex should design, produce and sell a differentials kit?

ive heard from several members that differentials would open up more design ops for the hobbyist, competitor, or would be just plain nice to have for tough terrain, such as a mountain of socks or a steep incline. my poor square bot had high centering issues when traveling from the kitchen to other places in the house, so being able to shift into a power band would be wonderful.

They already make one.

We sell a differential as part of the Advanced Gear Kit:

I’ve used them to create 2 cool robots which weren’t possible without it:
South-Pointing Chariot
Differential Trike (w/ South-Pointing Chariot)