How can I make my robot lower and raise itself from the ceiling?
I working on a something that will be able to move along the ceiling. It will stick to the ceiling using magnets. To get through door ways, I need to be able to make it lower itself from the ceiling, move through the doorway, and raise itself back up to the ceiling. How can I get my robot to lower and raise itself? How can I get it to move horizontally through the air?