Answered: descoring robots on the ladder

If you had a robot with a platform that expanded vertically that could push the robot underneath successfully descoring them without entangling be a legal maneuver?

Would it also be legal if the platform could not compress all the way to the ground but remain ~12 to 15in above the ground with nothing blocking the robot on top from driving off?

As long as to entanglement were to take place, this would be legal.