A similar ring was indicted in South Texas in June 2011 after investing some of its ill-gotten gains in more-advanced 3D printers. And last year a legitimate 3D printing service called i.Materialise received an order for an ATM skimmer that it turned down. "Fortunately, our engineers were quick to react," i.Materialise said on its blog, "and after communication with the customer, the decision was made to decline the order. We do not support criminal activity and will do everything in our power to prevent possible crimes."