Science Daily April 8, 2024
An international team of researchers (USA – MIT, National Institute of Standards and Technology, Greece) described a new method for the automatic generation of process parameters for fused filament fabrication (FFF) across varying machines and materials. They used an instrumented extruder to fit a function that maps nozzle pressures across varying flow rates and temperatures for a given machine and material configuration and developed a method to extract real parameters for flow rate and temperature using relative pressures and temperature offsets. Using their method they found process parameters, using one set of input parameters, across all the machine and material configurations that they tested, including materials they never printed before. According to the researchers rather than using direct parameters in FFF printing it is possible to deploy machine-generated data that captures the fundamental phenomenology of FFF to automatically select parameters… read more. Open Access TECHNICAL ARTICLE
… diagrammatic example of a typical FFF extruder, where a cylindrical filament is pushed…Credit: Integrating Materials and Manufacturing Innovation, 3 April 2024