[DougHogg]

I am not an engineer, but I would like to suggest that teams be very careful that any arm being moved by the Fisher Price motors is not pushing on something immovable (like the ground). It is sometimes easy not to notice that the motors are straining if there is no motion. You need to alert your drivers to be very careful about that.

Also I suspect that some teams are trying to deal with large forces (such as a vision tetra on the end of a 10 foot arm) without gearing down enough. Calculate out how much force it takes to lift those tetras on a long arm.