1 Reply Latest reply on Nov 24, 2013 9:23 PM by Jared Conway

    Simulation of a printerhead

    John Van Der Sanden

      Hello,

       

      Currently i'm designing a new printhead for a 3D printer. This is a engineeringsproject for school, i'm in the second year of mechanical engineering.

       

      A big issue with FFF 3D printers is jamming of the filament inside the extruder. I designed a new extruder in SolidWorks and i want to simulate the behavior of the liquide thermplastic inside the extruder. I attached a very simple design so you can see where it's about. The 6.2mm hole is for a 40 Watt heatercardridge for heating the nozzle. When the nozzle is hot the plastic melts in the heatcamber and will be pushed outside true the 0.35mm hole.

       

      Is it possible to simulate this within SolidWorks? I want to study the behavior of the liquide plastic so i can design a reliable new extruder.

       

      Specifications:

      Material nozzle            Aluminium

      Printing material          ABS

      Working Temp            30degree

      Velocity filament         0.76mm/sec

      Heatercardridge         40Watt

      Nozzle diameter          ø35mm

      Filament diameter      ø1.75mm

       

      Thanks,

       

      John

        • Re: Simulation of a printerhead
          Jared Conway

          you want to see how the plastic comes out of the print head? not possible in solidworks flow simulation. you'll have to go to something like abaqus.

           

          solidworks flow simulation would help you understand how it flows inside the print head. you'd probably need non newtonian material properties to get it to work right.

           

          if you know how things will behave if you understand how the heat is distributed in the printer head, this is definitely possible. but you need to have that understanding first.