The Makerbot Replicator is a personal 3D printer , which can create three-dimensional objects through connecting and layering successive cross sections of material. The new version is bigger, better, and easier to set up than earlier MakerBots. In this video Tim made at CES , MakerBot CEO Bre Pettis shows us how wonderful a device it is, and tells us why every child (and most adults) should have a MakerBot.