I really don't know what Ashley's talking about ... Roerdetin, if the angles of your models don't appear sharp but smooth instead, you must crease the edges . In the vertex modeller, you can crease the selected edges from the selection menu . Or you can use the Crease tool (C key) and click on the edges you want to crease . Note that if you hold alt, the Crease tool with smooth edges . Last thing, you can't have creased edges when you use subdivision surfaces . I hope it helps, litst