I am using a Da Vinci 3D printer, and I cannot print the carduino2.stl file. Carduino1.stl printed fine, but when I attempt to print #2 all of the parts disappear except for 1 piece, looks like a battery clip. I tried sending the carduino2.stl through netfabb.com, but this only makes the file into one giant plastic blob. Anyone have any experience with this, or an idea of how I can print the parts in carduino2.stl ?