Pushing seems to work a lot better than pulling! I am going to try adding shoes for traction. The other idea is to use the arms to guide the basket.
Test run with empty basket.
One bottle water in the basket. The basket and the robot both almost went off of the table.
Two bottle waters in the basket.
Three bottle waters in the basket. This was impossible for Boomer when pulling.
I could not believe how easy it was so I tried it again.
I have almost maxed out Boomer's pushing power. Four bottle waters!
This was my final try! Six bottle waters in the basket.
Boomer finally said no more!