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89 The company designs electric motors from 5 to 36 in in diameter, with power levels from 0.5 W to 150 kW, either frameless or housed. “In some custom applications we supply for, the end- user wants to make their own housing, which could be integral with part of their system,” Nino said. “In those cases we’ll produce just the stator and the rotor, and they’ll integrate that into their system.” Aveox’s motor controllers use its Smart Start technology, which is aimed at enabling quick motor start-up regardless of the initial rotor position or load. Airwolf 3D attended the show to display its latest additive manufacturing systems. The company’s extrusion printer uses a hot end to provide temperatures of up to 50-60 C – more than is typical for such systems – to enable printing of parts in materials such as polycarbonate (PC), carbonite PC and Bridge Nylon. “The material range afforded by this offers significant uses for unmanned systems that need improved strength- to-weight ratios in their materials,” commented Blake Goss. “Carbon nylon composite, for example, is about 5-10% stronger than ABS. We also have several metal-like filaments, with metal dust suspended in plastic.” Heat management allows the hot end to maintain a cool area above the heat block, which prevents ‘heat creep’ on any of the hotter filaments. Heat creep occurs when the heat conducts up the length of the material, and instead of it melting immediately it expands within the higher length of the barrel, potentially damaging it. Unmanned Systems Technology | December/January 2018 An example of an electric motor from Aveox Airwolf’s additive manufacturing systems can print parts in a range of materials