My idea is to have a xy movement like a 3d printer/ cnc machine and for an z axis movement there is a crane with a grabber and maybe has a camra attached so that the user can see where the crane is. The user should be able to control it remotely ie from their bed or wheelchair via a computer. I am a person who has a dissabilty that limits my strength to only enough to use a mouse and keyboard i am unable to reach things far away but i believe that this idea could help me and others!