High temperature extruder for a 3D printer
Assignee3Rdaxis Pty Ltd
InventorAshish Jain
Life of this patent
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Abstract
An extruder for 3D FDM printing with a highly thermally conductive ceramic nozzle that allows for very high temperature operation suitable for printing metals and high melting point plastics, whilst also being hard wearing to cope with abrasive materials. A heating element is printed onto the nozzle to allow for high temperatures in a compact space. A skirt attached to the nozzle provides heating to already deposited material to assist in bonding metal as it is deposited, as well as fume extraction. A non-conductive ceramic down tube thermally isolates the nozzle from the material feed mechanism. All major parts are themselves 3D printed.
Claims8
An extruder for 3D printing comprising a ceramic nozzle, wherein the ceramic nozzle has a skirt, and a plurality of skirt heating elements is provided on an underside of the skirt, wherein each of the plurality of skirt heating elements is in a planar arrangement on the underside of the skirt, and each of the plurality of skirt heating elements is located in a separate circular sector of the skirt.
Dependencies are inferred from the claim text.