building a robot transport

[Bcahn836]

Originally Posted by bskll

my team is interested in building a motorized cart that help us transport our heavy robot.

the total amount of weight that the motors has to support is about 130 pounds for the robot and about 20-30 pounds for the cart it self.

we are planning to drive it with a simple drive system of two motors each individually connecting to a chain and then the chain will connect to 1 wheel each.

what gear ratio do you guys suggest? we don't need it to be fast here. we just need to help move along the robot.

thanks for any suggestion.

P.S. this is my first post.

What kind of motor do u plan on using? We are using two wheel chair motors and their rated load is 200lbs each.