I'm surprised that there isn't a subforum for the Printrbot. I'm covering the basic build on my blog 3D Printed Sculpture: Printrbot Mechanics. This will be my 4th 3d printer build and I'm choosing this one for a number of reasons. The first is because of size. My heat bead is only 4.5 x 6 inches in size. Also I am planning to use this printer to experiment with clay extrusion.