Patent ID: 8574485

Claim:
A method of producing a three-dimensional object, comprising the steps of: providing a radiation initiator in a first compartment devoid of a build material; providing a build material in a second compartment devoid of a radiation initiator, the build material being selected from an acrylic compound, a compound having one or more epoxy substituents, a compound having one or more vinyl ether substituents, a vinylcaprolactam, a vinylpyrrolidone, a norbornene, a urethane, and a combination thereof; dispensing the radiation initiator from the first compartment and separately dispensing the build material from the second compartment in a manner in which the radiation initiator and the build material commingle for the first time outside of their respective compartments to form a multi-part radiation curable material; and curing the multi-part radiation curable material to produce the three-dimensional object; wherein dispensing the radiation initiator and the build material includes: depositing the build material on a surface in a spaced manner; and depositing the radiation initiator on the surface within the spaces between the build material, wherein the build material and the radiation initiator form a layer of commingled build material and radiation initiator thereby forming the multi-part radiation curable material.