When people see things made on MakerBot 3D Printers, they often start to wonder two things: how much do they cost, and how much can you make with one roll? In this video, Annelise addresses the question of how much plastic is on one roll of MakerBot Filament, and what you can make with it. Then she shows us how to calculate the final cost. The answer is much simpler than you might think. Just weigh it!