I have no previous experience working with robotics, but my teacher sent me and a few classmates a challenge. We're to build a robotic arm that's able to move freely around a room, the arm as well must reach at least 2 feet high and 3 feet long. I was wondering if anyone knew of an adequate tutorial, or were willing to teach me some of the basics as I'm not even sure where to start. I have done a fair amount of research to this date, but I don't quite think it's cutting it. On a side note the robot must be made from scratch, so building from a kit is sadly not an option. As for money, the school is budgeting a decent amount of money so it can't be anything to overly expensive, but it doesn't have to be cheap. Any help would be greatly appreciated as I'm very interested in this field and a help with the first step would be wonderful.