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3D Printing Seminar Topics,3D Printing ppt, 3D Printing pdf, seminar on 3D Printing, 3D Printing Abstract, 3D Printing seminar report, 3D Printing technology . – First article about 3D printing technology (Hideo Kodama of Nagoya. Municipal Industrial Research Institute). ➢ – First functioning. 3 d printing(ppt) 1. 3D Printing. 2. 3D PRINTER Seminar fair report (pdf) Arjun Raveendran. English. Espanol Portugues Français Deutsche About;. 3D Printing .
CAD is also widely used to produce computer animation for special effects in movies, advertising and technical manuals, often called DCC digital content creation. The modern ubiquity and power of computers means that even perfume bottles and shampoo dispensers are designed using techniques unheard of by engineers of the s.
Because of its enormous economic importance, CAD has been a major driving force for research in computational geometry, computer graphics both hardware and software , and discrete differential geometry.
The design of geometric models for object shapes, in particular, is occasionally called computer-aided geometric design CAGD. Unexpected capabilities of these associative relationships have led to a new form of prototyping called digital prototyping. In contrast to physical prototypes, which entail manufacturing time in the design. That said, CAD models can be generated by a computer after the physical prototype has been scanned using an industrial CT scanning machine. Depending on the nature of the business, digital or physical prototypes can be initially chosen according to specific needs.
The surface is tessellated logically into a set of oriented triangles facets. Each facet is described by the unit outward normal and three points listed in counterclockwise order representing the vertices of the triangle. While the aspect ratio and orientation of individual facets is governed by the surface curvature, the size of the facets is driven by the tolerance controlling the quality of the surface representation in terms of the distance of the facets from the surface.
The choice of the tolerance is strongly dependent on the target application of the produced STL file. In industrial processing, where stereolithography machines perform a computer controlled layer by layer laser curing of a photo-sensitive resin, the tolerance may be in order of 0. However much larger values are typically used in pre-production STL prototypes, for example for visualization purposes. The native STL format has to fulfill the following specifications: First, the direction of the normal is outward.
Second, the vertices are listed in counterclockwise order when looking at the object from the outside right-hand rule.
This is known as vertex-to-vertex rule. The normal, if not specified three zeroes might be used instead , can be easily computed from the coordinates of the vertices using the right-hand rule.
Moreover, the vertices can be located in any octant. And finally, the facet can even be on the interface between two objects or two parts of the same object. This makes the generalized STL format suitable for modelling of 3D non- manifolds objects. Different types of inks are available according to the size, type, resolution and function of the object.
These applications require both functional materials, such as those exhibiting Ferro electricity, high strength, or biocompatibility, and periodicity engineered at length scales approximately several micrometers to millimeters far exceeding colloidal dimensions.
Colloidal inks developed for robotic deposition of 3-D periodic structures. These inks are also called general purpose inks. These types of inks are used for creating soft devices. The type of ink is capable for self-organizing which results in self regenerative devices.
The object that has to be printed sometimes need conductor for its function. For printing conductors, special types of inks called Nanoparticle inks are used. Polyelectrolyte complexes exhibit a rich phase behavior that depends on several factors, including the polyelectrolyte type and architecture, their individual molecular weight and molecular weight ratio, the polymer concentration and mixing ratio, the ionic strength and pH of the solution, and the mixing conditions.
So such inks are used for creating sensors, transducers etc. In this chemical procedure, the 'sol' or solution gradually evolves towards the formation of a gel-like diphasic system containing both a liquid phase and solid phase whose morphologies range from discrete particles to continuous polymer networks. In the case of the colloid, the volume fraction of particles or particle density may be so low that a significant amount of fluid may need to be removed initially for the gel-like properties to be recognized.
These inks are very useful in creating power supply modules in the printed object. It may have as profound an impact on the world as the coming of the factory did Just as nobody could have predicted the impact of the steam engine in or the printing press in , or the transistor in It is impossible to foresee the long-term impact of 3D printing.
But the technology is coming, and it is likely to disrupt every field it touches. Additive manufacturing's earliest applications have been on the tool room end of the manufacturing spectrum. For example, rapid prototyping was one of the earliest additive variants, and its mission was to reduce the lead time and cost of developing prototypes of new parts and devices, which was earlier only done with subtractive tool room methods typically slowly and expensively.
With technological advances in additive manufacturing, however, and the dissemination of those advances into the business world, additive methods are moving ever further into the production end of manufacturing in creative and sometimes unexpected ways. Parts that were formerly the sole province of subtractive methods can now in some cases be made more profitably via additive ones. All the traditional methods of printing causes wastage of resources. But 3D printer only uses the exact amount of material for printing.
This enhances the efficiency. If the material is very costly, 3d printing techniques can be used to reduce the wastage of material. Consider printing of a complex geometry like combustion chamber of a rocket engine. The 3D printing will enhances the strength and accuracy of the object. Conventional methods uses parts by parts alignment. This will cause weak points in structures.
But in the case of 3D printed object, the whole structure is a single piece. Since it is a product development device, rate of production, customization and prototyping capabilities need to be considered.
Construction of the part or assembly is usually done using 3D printing or "additive layer manufacturing" technology. The first methods for rapid prototyping became available in the late s and were used to produce models and prototype parts. Today, they are used for a wide range of applications and are used to manufacture production-quality parts in relatively small numbers if desired without the typical unfavourable short-run economics. This economy has encouraged online service bureaus. Historical surveys of RP technology start with discussions of simulacra production techniques used by 19th-century sculptors.
Some modern sculptors use the progeny technology to produce exhibitions. The ability to reproduce designs from a dataset has given rise to issues of rights, as it is now possible to interpolate volumetric data from one-dimensional images.
For RP this data must represent a valid geometric model; namely, one whose boundary surfaces enclose a finite volume, contain no holes exposing the interior, and do not fold back on themselves.
Those systems combine the low unit costs of mass production processes with the flexibility of individual customization. Mass customization is the new frontier in business competition for both manufacturing and service industries.
At its core is a tremendous increase in variety and customization without a corresponding increase in costs. At its limit, it is the mass production of individually customized goods and services. At its best, it provides strategic advantage and economic value. Mass customization is the method of "effectively postponing the task of differentiating a product for a specific customer until the latest possible point in the supply network.
Kamis, Koufaris and Stern conducted experiments to test the impacts of mass customization when postponed to the stage of retail, online shopping. They found that users perceive greater usefulness and enjoyment with a mass customization interface vs.
With the arrival of 3D printer, we are able to customize any products we want. Consider you are in a shop to download a spectacle.
The only choice you have is to select a model from the shop. By the implementation of 3d printed spectacles, you are provided with power for creating any spectacle in the world with just the CAD model.
The company plans to print the vehicle live in front of an audience in September at the International Manufacturing Technology Show. Produced from a new fibre-reinforced thermoplastic strong enough for use in an automotive application, the chassis and body without drivetrain, wheels and brakes weighs a scant pounds and the completed car is comprised of just 40 components, a number that gets smaller with every revision. The 3D printed bike is made of over 40 individual pieces and Wan details his print and build process over on Ultimakers blog.
The project is certainly not for beginners. When designing the bike replica, Wan imposed several goals on himself; He wanted to maintain the external looks of the bike, all parts needed to snap fit together to make gluing easier, keep seams and striation to a minimum and everything needed to print on his Ultimaker: The company then uses nylon to print out each unique order. She wore the garment to the Ace Hotel in March for a convention hosted by online 3D printing marketplace, Shapeways.
The dress consists of 2, intersecting joint pieces that were linked together by hand. British designer Catherine Wales is making moves too. She is best known for her Project DNA collection, which includes avant-garde 3D printed masks, accessories, and apparel, all printed with white nylon. The eccentric shapes of her garments reflect that 3D printed clothing is still in its early stages. Today, the materials and technologies used for 3D printing still dictate and affect garment design.
A frontrunner in the realm of futuristic fashion design, Van Herpen has been taking her 3D printed dresses and shoes to the runways since Still, she admits that there are challenges associated with incorporating a new medium into the manufacturing process. The idea of custom design has mass appeal and marketability. The Mars Rover comprises some 70 3-D-printed custom parts. Scientists are also exploring the use of 3-D printers at the International Space Station to make spare parts on the spot.
What once was the province of science fiction has now become a reality. Medicine is perhaps one of the most exciting areas of application. Beyond the use of 3-D printing in producing prosthetics and hearing aids, it is being deployed to treat challenging medical conditions, and to advance medical research, including in the area of regenerative medicine.
The breakthroughs in this area are rapid and awe-inspiring. Whether or not they arrive en-mass in the home, 3D printers have many promising areas of potential future application. They may, for example, be used to output spare parts for all manner of products, and which could not possibly be stocked as part of the inventory of even the best physical store. Hence, rather than throwing away a broken item something unlikely to be justified a decade or two hence due to resource depletion and enforced recycling , faulty goods will be able to be taken to a local facility that will call up the appropriate spare parts online and simply print them out.
NASA has already tested a 3D printer on the International Space Station, and recently announced its requirement for a high resolution 3D printer to produce spacecraft parts during deep space missions.
The US Army has also experimented with a truck-mounted 3D printer capable of outputting spare tank and other vehicle components in the battlefield. As noted above, 3D printers may also be used to make future buildings. To this end, a team at Loughborough University is working on a 3D concrete printing project that could allow large building components to be 3D printed on-site to any design, and with improved thermal properties.
Another possible future application is in the use of 3D printers to create replacement organs for the human body.
This is known as bio printing, and is an area of rapid development. You can learn more on the bio printing page, or see more in my bio printing or the Future Visionsgallery. The largest 3D-printed rocket part built to date, a rocket engine injector, survived a major hot-fire test.
The injector generated 10 times more thrust than any injector made by 3D printing before, the space agency announced. Dragon V2 comes with new "SuperDraco" 16, lb-thrust engines that can be restarted multiple times if necessary.
In addition, the engines have the ability to deep throttle, providing astronauts with precise control and enormous power. The SuperDraco engine chamber is manufactured using 3D printing technology, the state-of-the-art direct metal laser sintering DMLS which uses lasers to quickly manufacture high-quality parts from metal powder layer by layer.
Current 3D Printing Technologies 3 3.
Stereo lithography 3 3. Selective laser sintering S! Process 6 5.
Cleaning 3D Printouts 8 5. Heating 11 5. Design Prototypes 1 7. Health 15 8: Conclusion 18 Introduction to 3D Printing 3D printing is a form of additive manufacturing technology where a three dimensional object is created by laying down successive layers of material.
It is also known as rapid prototyping, is a mechanized method whereby 3D objects are quickly made on a reasonably sized machine connected to a computer containing blueprints for the object. It is used in a variety of industries including jewelry, footwear, industrial design, architecture, engineering and construction, automotive, aerospace, dental and medical industries, education and consumer products.
Current 3D Printing Technologies 3. S" ; his builds objects by using a laser to selectively fuse together successive layers of a cocktail of powdered wa!
Cvery 3D printer uses some sort of material to support parts of the design that have an overhang. It is funny to see the oven in this picture is a standard consumer grade. Benefits of 3D Printing he most successful companies have adopted 3D printing as a critical part of the iterative design process to? Applications 8. Conclusion othing communicates ideas faster than a three;dimensional part or model.
In an age in which the news, books, music, video and even our communities are all the subjects of digital dematerialization, the development and application of 3D printing reminds us that human beings have both a physical and a psychological need to keep at least one foot in the real world.
Desktop 3D printers for the home are already a reality if you are prepared to pay for one andJor build one yourself. Flag for inappropriate content.
Examples of manifold errors are surfaces that do not connect, gaps in the models, Examples of software that can be used to fix these errors are netfabb and Meshmixer, or even Cura, or Slic3r. Once that's done, the. STL file needs to be processed by a piece of software called a "slicer" which converts the model into a series of thin layers and produces a G-code file containing instructions tailored to a specific type of 3D printer FDM printers.
This G-code file can then be printed with 3D printing client software which loads the G-code, and uses it to instruct the 3D printer during the 3D printing process. It should be noted here that often, the client software and the slicer are combined into one software program in practice. Though the printer-produced resolution is sufficient for many applications, printing a slightly oversized version of the desired object in standard resolution and then removing materialwith a higher-resolution subtractive process can achieve greater precision.
Some printable polymers allow the surface finish to be smoothed and improved using chemical vapour processes. Some additive manufacturing techniques are capable of using multiple materials in the course of constructing parts.
These techniques are able to print in multiple colors and color combinations simultaneously, and would not necessarily require painting. Some printing techniques require internal supports to be built for overhanging features during construction. These supports must be mechanically removed or dissolved upon completion of the print.