1. Mechanical Assembly
                                 http://academy.cba.mit.edu/2013/students/nunez.pablo/weeks/week15.html
                                 http://academy.cba.mit.edu/2013/students/garcia.cesar/week15assignments.html#sec-2-2
                                 http://academy.cba.mit.edu/2013/students/lorenzo.covadonga/project14.html
                                 http://academy.cba.mit.edu/2013/students/cueva.epifanioluis/week15.html
                                 http://academy.cba.mit.edu/2013/students/contonente.javier/week15/week15.html
                                 http://academy.cba.mit.edu/2013/students/alvarellos.sara/mechanical_design_assembly.html
                                 2. Electronics: Ramps
                                 http://academy.cba.mit.edu/2013/students/lorenzo.covadonga/project14.html
                                 http://academy.cba.mit.edu/2013/students/alvarellos.sara/machine_design.html
                                 3. Calibration, making it move and work.
                                 http://academy.cba.mit.edu/2013/students/alvarellos.sara/machine_design.html