摘要:
A method for solid free-form fabrication of a three-dimensional object includes depositing a particulate blend in a defined region, the particulate blend including reactive glass ionomer particulates, cross-linkable polyacid particulates including polyvinyl pyrrolidone-co-polyacrylic acid, and nanocomposites, ink-jetting an aqueous phase binder onto a predetermined area of the particulate blend to form hydrated cement in the predetermined area, and hardening the hydrated cement.
摘要:
A three-dimensional object is fabricated from powder. A powder layer is deposited. The powder layer is selectively wetted to hinder movement of the powder. A binder is applied to selected areas of the powder layer to harden the areas of the powder layer. The steps are repeated until the three-dimensional object is fabricated.
摘要:
A method for producing an object formed through solid freeform fabrication includes dispensing a binder on successive layers of build material with a single first dispensing member; and coloring the successive layers with at least one second dispensing member, where the second dispensing member over-dispenses the first dispensing member. Another method for producing an object through solid freeform fabrication includes dispensing a first binder on successive layers of build material with a single first dispensing member; and dispensing a second binder on the successive layers of build material with at least one second dispensing member, where the second dispensing member over-dispenses the first dispensing member.
摘要:
A method for improving color quality in an object created by a solid freeform fabrication system keeps a colorant in an ejected material near a surface of the object.
摘要:
A method for producing an object formed through solid freeform fabrication includes dispensing a binder on successive layers of build material with a single first dispensing member; and coloring the successive layers with at least one second dispensing member, where the second dispensing member over-dispenses the first dispensing member. Another method for producing an object through solid freeform fabrication includes dispensing a first binder on successive layers of build material with a single first dispensing member; and dispensing a second binder on the successive layers of build material with at least one second dispensing member, where the second dispensing member over-dispenses the first dispensing member.
摘要:
A method of producing an object through solid freeform fabrication, the method including fabricating a support structure about at least a portion of the object by applying a binder or focused energy to a build material.
摘要:
A display system includes a mechanism to provide for simultaneous pixelated color with a spatial light modulator. Also included is a mechanism to project the simultaneous pixelated color to create a color field display on a viewing surface. A further mechanism moves the color field display relative to viewing surface to provide at least one of color and resolution increasing wobulation.
摘要:
One embodiment of a display system includes a control module that controls a position of an adjustable neutral density filter based on a calculated filter setting and that controls modulation of a set of frame data by an image modulator based on a calculated gain setting, and an image analysis module that calculates a gain setting and a filter setting for the set of frame data and forwards the calculated gain setting and the filter setting to said control module.
摘要:
A method for aligning multiple nozzle members in a solid free form build unit is disclosed. A geometric test shape having at least one investigational topographic region projecting outward from a central base is formed and analyzed for at least one physical characteristic correlative with nozzle member targeting accuracy. The physical characteristic is at least one of color hue shift, surface pattern irregularity, and dimensional accuracy.
摘要:
A method of producing an object through solid freeform fabrication includes selectively depositing a boundary structure that defines a surface of the object, and depositing a flowable build material within the boundary structure, wherein the flowable build material forms a portion of the object by flowing to the boundary structure.