Printed my first large scale sculpture at 18" on a new prototype 3D printer that I've called the RoboSculptor. It's a basic reprap type printer that I've designed by eliminating all the frustrating aspects of the last 5 reprap variations I've built over the past 4 years. You can find it at my site Blog | 3D Printed Sculpture | An exploration of creating sculpture with DIY 3D printing.