3D printing is already revolutionising the world of design engineering and manufacturing, from aerospace through to the automotive and medical industries. Yet many UK companies, especially small-to-medium enterprises (SMEs), are still reluctant to adopt this technology, often due to cost. This is where scalability comes in. Here Chris Elsworthy, MD and Lead Mechanical Engineer, CEL-UK explains why a scalable network of small 3D printers is what today's design engineers need.