Alright cool, thanks for making a thread. Ok you want to do a smaller balance bot so you should be able to utilize some smaller gear. What do you have so far for your build?

I have the ez robot builder kit, some spare wire, connectors, sodering iron, and soder.

I have purchased one gyro and a gear kit from vex robotics. Both are still on their way.

Whats the gear kit for? Here is a physical layout pic.

This is a simple design , three circle solid pieces and one ring at the bottom. One shelf for batteries next shelf ezb and 2 h bridges and gyros. Top is left clean but thats a great place to piut a ez cam

I order the gear kit before I decided what I wanted to build.

That looks like what I was thinking.

What do you mean "3 circle sold pieces"? Why are there 4servos?

I meant solid circles , another words no hole in the platform. The last piece goes around your ball. The servos are modified to be able to rotate continuously and controlled by an h bridge. L298n 2.5 amp in the ez robot store. Two servos rotate x axis and two the y axis.

Also, if I use the supplied servos (the ones that are in the kit) why do I need a h bridge?

You need four so thats two more of the 10.99 servo

For your robot to have good grip on the ball you need a motor with a wheel on each end of the axis agianst the ball. So you have two already you just need two more to balance on the x and y axis.

Oh, lol. I get it now.

Ok, so what do you think about using a racketball?