These modifications reduce the volume of molten material and minimize the risk of thermal degradation, allowing the processing of polymers with high melting temperature such as polydioxanone , polylactic acid and thermoplastic polyurethane . Filament-driven MEW printers also provide opportunities to increase the heating temperature for processing, for polymers with higher melting points. The MEWron is based on the open-source Voron 0.1 fused filament fabrication (FFF) 3D printer, which is a highly capable yet low-cost system developed by a significantly sized maker community.