Engenharia: Cortando objetos com laser de um PC velho
[youtube http://www.youtube.com/watch?v=zihZiGUKUS8&hl=en_US&feature=player_embedded&version=3]
[youtube http://www.youtube.com/watch?v=zihZiGUKUS8&hl=en_US&feature=player_embedded&version=3]
André Jaccon