Explore the journey of building laser-shooting robots for the DEFCONBOTS challenge in this 21-minute Hackaday Superconference talk. Delve into Alvaro Prieto's experiences, from simple beginnings to advanced creations, as he shares valuable lessons learned along the way. Discover practical tips for quick robot construction, including making test cuts on paper before final materials, supergluing pulley belts, and the importance of limit switches. Learn about the challenges of mounting commercial webcams, precision optics, and using friction drive. Gain insights on working with materials like OpenBeam and handling unexpected issues during the building process. Get inspired to tackle your own robotics projects and navigate potential obstacles, from TSA encounters to last-minute complications.