FIRST things FIRST ..... please explain how your robot gets to level three? If you would PLEASE post detail drawings and maybe some CAD models, this will certainly help us develop a safe plan for removal of your robot and our 'NEW' robot.
JUST JOKING ..... our robot is still sitting on the floor .... we hope to have the same safety concern one day .... thanks for making us think ahead and DREAM
,
Lucien