Patent ID: 9283714
Filing Date: 2016-03-15
CPC Classification: B29B,B29C,B29K,B33Y

Claim Text:
1. An apparatus for producing a single colored or a multicolored three dimensional article from a polymer filament, comprising: a first print head with which a support material is printed, and a second print head with which a build material is printed, wherein the build material is the polymer filament, wherein the second print head comprises a second nozzle comprising at least two regions, wherein the second nozzle has a downstream open end for printing the build material and forming a three dimensional article, wherein the second nozzle is configured such that the polymer filament is solid in an upper region of the second nozzle and molten in a lower region, wherein the second print head is connected to a supply source for at least one of an additive and a color ink, wherein the supply source includes a plurality of reservoir vessels, each equipped with a metering apparatus, and wherein the second print head further comprises a melter in the lower region of the second nozzle to melt the polymer filament and a mixing apparatus for mixing at least one of the melted polymer filament, the additive and the color ink, and wherein said second print head, said second nozzle is the single nozzle and the polymer filament is the single polymer filament, and the second print head comprises a plurality of micro-injection needles oriented to cut into the molten polymer filament.