Nexa3D Nexa3D are an American 3D printer manufacturer commercializing two proprietary polymer printing technologies: a resin-based technology called Lubricant Sublayer Photocuring (LSPc) and a powder-based technology called Quantum Laser Sintering (QLS). IDTechEx spoke with Sarah Goehrke, Senior Director of Strategic Communications and Ecosystems at Nexa3D. Nexa3D