Navigation		Vellum Reviews What Are NURBS, Why Are They Important? - surfaces created by interpolating, precision design properties, injecting mold designs, Ashlar Vellum, Jan 5, 2010 Vellum Solids 2000 - Joe Greco, CADENCE, October 2000. 4 stars out of 5 Vellum Solids - CADENCE, Dec 1999