Hello! We're working on 3D printing software in the bay area and and discovered a bug in our kit for Ultimaker 2 (bad slicing). We think we fixed it now, tested it on U1 but don't have a U2. Does any body in the San Francisco bay area or up in Sacramento have an Ultimaker 2 they don't mind us using. We'll pay for your time and fillament and come to your house. Thanks!