Abstract: A consumable material for use in an additive manufacturing system, the consumable filament comprising a polyamide blend of at least one semi-crystalline polyamide, and at least one amorphous polyamide that is substantially miscible with the at least one semi-crystalline polyamide, and a physical geometry configured to be received by the additive manufacturing system for printing a three-dimensional part from the consumable material in a layer-by-layer manner using an additive manufacturing technique. The consumable material is preferably capable of printing three-dimensional parts having good part strengths and ductilities, and low curl.

Abstract: A liquefier assembly for use in an additive manufacturing system, the liquefier assembly comprising a liquefier tube, a rigid sleeve secured to an inlet end of the liquefier tube, an extrusion tip secured to an outlet end of the liquefier tube, and a hollow liner disposed at least partially within the rigid sleeve such that inner surfaces of the liquefier tube and the hollow liner are substantially flush, and where the inner surface of the hollow liner has a low surface energy.

Abstract: A method for building a three-dimensional part, the method comprising providing a printed three-dimensional part and support structure, where the support structure comprises at least two polymers having different glass transition temperatures. The method also comprises annealing the three-dimensional part.

Abstract: A method for building a three-dimensional part, the method comprising providing a printed three-dimensional part and support structure, where the support structure comprises at least two polymers having different glass transition temperatures. The method also comprises annealing the three-dimensional part.

Abstract: Iodine containing amorphous fluoropolymers having at least one fluoropolymer with a cure site, where the fluoropolymer has a Mooney viscosity of 2 or less (ML 1+10) at 100° C. according to ASTM D1646, and a peel strength to a roll mill of 10 dN/cm or less and methods for making such iodine containing amorphous fluoropolymers are described. Articles derived from the cured product of such iodine containing amorphous fluoropolymers are also described. Solutions, dispersions and coatings derived from such iodine containing amorphous fluoropolymers are also described.