Tennis ball retrieving robot (object recognition)

Projects Discussion and Showcase Robotics
9

Hi everyone,

I also have a question on what motors i will need. The robot will be about 20lbs.

It will need to be heavy enough collect the balls using something like this:

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwisusy6nIfKAhUFxGMKHXDWCLcQjRwIBw&url=https%3A%2F%2Fwww.pinterest.com%2Fpin%2F5629568260811374%2F&psig=AFQjCNEBblJCJy7ivlssvgXn9xsUoPpQWg&ust=1451689902869092

Any suggestions on what type of motor?

Thanks in advance.