Three-dimensional printing techniques
A process for making a component by (A) depositing a first layer of a powder material in a confined region and then (B) depositing a binder material to selected regions of the layer of powder material to produce a layer of bonded powder material at the selected regions. Such steps are repeated a selected number of times to produce successive layers of selected regions of bonded powder material (C) so as to form the desired component (D). The unbonded powder material is then removed (E). In some cases the component may be further processed as, for example, by heating it to further strengthen the bonding thereof.
Publication number: EP0431924A3 | Search similar patents
Detachable filament guide and nozzle module for 3d printers
A filament guide and nozzle replacement method, comprising: providing a Fused Deposition Modeling (FDM) 3D printer extruder comprising: a filament feeding mechanism; a heating block unit; a motor configured to operate said feeding mechanism; and a detachable integrated filament guide and nozzle unit module (DFGNM); detaching said DFGNM from said heating block unit in a manner that prevents the need to disassemble said heating block unit; disconnecting said DFGNM from said filament feeding mechanism; connecting another DFGNM to said filament feeding mechanism; and attaching said other DFGNM to said block unit.
Publication number: WO2015059603A1 | Search similar patents
Use of 3d printing for anticounterfeiting
The invention pertains to the use of sophisticated chemical formulation and spectroscopic design methods to select taggants compatible with the 3D print medium that are easily detected spectroscopically but otherwise compatible with the product, structural integrity and stability, and aesthetics. A spectral pattern employs a different chemical or combination of chemicals to alter the formulation of all or some portion of the printed object so that its authenticity can be monitored later using a spectrometer.
Publication number: WO2015112959A1 | Search similar patents
Process and apparatus to colour a part manufactured by 3d printing
Disclosed herein is a process and a device to colour a part manufactured by using a 3D printing process of the "Fused Filament Fabrication" (FFF) or "Fused Deposition Modelling" (FDM) type, using UV ink dispensed by inkjet printing processes. Specifically, it consists on an upgrade for common 3D FFF printing machines that allows them to print coloured parts.
Publication number: EP2985134A1 | Search similar patents
Spacer wafer for wafer-level camera and method of manufacturing same
A spacer wafer for a wafer-level camera and a method of manufacturing the spacer wafer include positioning a substrate in an additive manufacturing device and forming the spacer wafer over the substrate. The spacer wafer is formed by an additive manufacturing process.
Publication number: US2013122261A1 | Search similar patents
Color or multi-material three-dimensional (3d) printing
A three-dimensional (3D) continuous color printer includes one or more cartridges each with a building material stored therein, a mixer coupled to each cartridge, and a single printhead coupled to a mixer output, wherein the building material stored in the cartridge is transported to the mixer and the single print head to form a continuous color object.
Publication number: WO2015073301A1 | Search similar patents
Composition and method for three-dimensional (3d) printing
A method for producing an X-ray detectable three-dimensional (3D) object or a part thereof using a 3D printer, said method comprising: (i) providing a composition comprising at least one 3D printing material and at least one X-ray contrast agent; (ii) providing a digital model of said object or part thereof; and (iii) printing said 3D object or part thereof from said digital model using said composition of (i), thus obtaining said X-ray detectable printed 3D object or part thereof that can be visualized under X-ray scanning.
Publication number: WO2015118548A1 | Search similar patents
Method and fabricating tools for earth boring
A method for creating a rapid prototype mold for parts of an earth boring tool for manufacture thereof comprises initially optimizing the drill bit design and integrating this design into CAD code. The CAD code is utilized to generate a prototype file in a computer outputting command signals to a laser, and a laser scanner to prototype a mold utilizing stereolithography, selective laser sintering, or laminated object manufacturing, in addition to other prototype techniques to manufacture earth boring tool parts.
Publication number: US2003094730A1 | Search similar patents
Unitary metal structural member with internal reinforcement
A metal unitary structural member for structural support. The member includes a plurality of web portions extending radially from each other and extending with each other in an axial direction, and a plurality of radially outer portions extending in an axial direction with the web portions and between the web portions in cross-section. The plurality of outer portions defines an outer surface of the member. The web portions may extend from a substantially central portion. The plurality of web portions may include perforations.
Publication number: US2002152715A1 | Search similar patents
High-density compounds for 3d printing
High density compounds that can be used in extrusion-based 3D printing processes and methods for making the same are described. The high-density compounds can be made in the form of filaments by providing a thermoplastic material (such as ABS), providing a source of heavy metal (such as Bi2O3 powder), compounding the thermoplastic material and the heavy metal source to form high-density compound, and then extruding the high-density compound to form the filament shape. These filaments can be used to make a highdensity product by melting the filaments in the printing head of a FDM 3D printer and then depositing the molten material in the 3D printer in successive layers to form the high-density product. The resulting highdensity products exhibit an enhanced radiopacity because of the presence of the heavy metal, allowing the rapid manufacturing of radiation shielding components via the 3D printing process. Other embodiments are described.
Publication number: WO2015077536A1 | Search similar patents
A machine for grinding a work-piece customized by additive manufacturing
Machine (200) for grinding a work-piece (205) using a grinding tool (245). The machine comprises a motor (225) for rotating a spindle (230) comprising a work-piece holder (235) for holding the work- piece (205). The machine further comprising a tool post (240) for mounting and maneuvering the grinding tool relative to the work- piece, wherein the machine further comprises a print system (210) for printing printable material (250) to the work-piece via additive manufacturing. The printed material may be used to customize a shape of the work-piece after the work-piece has been grinded or turned in the machine. This combination allows for a reduced machine footprint and an increased product accuracy.
Publication number: WO2015091837A1 | Search similar patents
Rapid prototyping and filling commercial pipeline
Methods and apparatus provide a means to rapidly develop and modify prototype surface coverings for customer review and approval, and fill the commercial pipeline while more conventional production equipment is obtained, installed and tested. The present apparatus to rapid prototype and fill the commercial pipeline includes a digital printing system to print a film and a press for laminating and embossing the printed film to a substrate. The press uses an embossing plate or roll, which is made from ebonite or by three-dimensional printing equipment. These plates and rolls can be produced within two or three days or less.
Publication number: US2005247216A1 | Search similar patents
Apparatus for preventing clogging of printer nozzle and printer ink cartridge
A printer nozzle apparatus, including a nozzle that sprays ink, at least one vibration unit that is arranged on one surface of the nozzle and of a ring shape, and a controller that controls a vibration frequency of the vibration unit.
Publication number: US2015314604A1 | Search similar patents
Manufacturing method of three-dimensional food by rapid prototyping
This invention discloses a manufacturing method for producing three-dimensional food in a very short time without using a mold. The key technology is to establish a figure or word character in a computer-aided design (CAD) software such as CATIA, Pro/E, I-Deals, Solidwork, and AutoCAD or use a built-in figure and word of the Window system. The figure or word character is built into a three-dimensional model and transformed into a file with an *.stl format. Finally, a rapid prototyping (RP) machine is used to build the 3D food, and then the finished goods of the 3D food are produced. The invention promotes the food manufacturing method from 2D to 3D and accomplishes a substantial progress on the application of rapid prototyping.
Publication number: US2008260918A1 | Search similar patents
Solid freeform fabrication using power deposition
A solid freeform fabrication process and apparatus for producing three dimensional parts using layer-by-layer deposition of support powder and part compositional powder, where the deposition is accomplished using electro-photographic powder deposition technology to create a three-dimensional green part. Each successive loose powder layer is deposited directly onto the previously deposited powder layer, which has been compacted or fused to its underlying layer. After all powder layers have been deposited the green part is further processed such that the part compositional powder is fused to create a high-density part while the support powder is easily removed.This application claims the benefit of the United States provisional application filed Dec. 12, 1997, and assigned Ser. No. 60/069,583.
Publication number: US6066285A | Search similar patents