Australian Design and drafting Services CAD Innovations in Rapid Prototyping 9

CAD Innovations in Rapid Prototyping

[fusion_dropcap color="" boxed="yes" boxed_radius="0px" class="" id=""][/fusion_dropcap]Rapid Prototyping has advanced our ability to design and fabricate models, proof-of-principle prototypes, and in some cases functional components. Few of the well-established Additive Processes, whereby plastic parts are built layer by layer directly from a 3D CAD model, some of the common techniques are:

  • Stereo Lithography (SLA)
  • Fused Deposition Modeling (FDM)
  • Selective Laser Sintering (SLS)
  • Direct Metal Laser Sintering (DMLS)
  • The Polyjet Process

[/fusion_text][fusion_text]Computer Numeric Control (CNC) Machining is also a well-known subtractive process that machines, billets to produce the desired parts. Other rapid prototyping processes include Injection Molding and Casting, which use master moulds to inject or cast plastic or urethane parts. New methods, techniques, and approaches to rapid prototyping parts and components are being developed each year. Some of the most exciting developments are given below.

Ford’s F3T Rapid Stamping Process

Ford Motor Company uses many sheet metal parts in its assembled vehicles and is world-renowned with sheet metal fabrication. The process of taking a new design from a CAD model to prototype can be time-consuming. This latency increases the design iteration time making it extremely cumbersome to make one-off prototypes and test-fit new designs. Recently, Ford has created a new rapid process, which they call the Ford Freeform Fabrication Technology (F3T), as part of a three-year, $7.04 M, U.S. Department of Energy-funded effort for next-generation, energy-efficient manufacturing processes. This new short-run stamping technology reduces costs and delivery times for low-quantity run sheet metal parts.

The process begins with a CAD model used to create a Computer Numeric Control (CNC) tool path, which is similar to the path used by a 3D printer to generate the part. It directs the position and depth of a dual-arm robot, which holds tools in both arms as they process the sheet into shape. This process allows prototypes and small production runs (less than 100,000 parts) with shorter lead times cost-effectively. Customization becomes more viable since the cost of design iterations is drastically reduced.  The short-run stamping process may have bigger applications in various industries.

Large-scale 3D Printers

Another exciting area of innovation in rapid prototyping is the use of 3D printers for building models and working prototypes that until recently were impossible. 3D printers are now capable of printing vehicles and even small houses! Researchers at the Oak Ridge National Laboratory and Cincinnati Incorporated have developed a printer capable of using Additive Processes to build the Stratis Car. The machine referred to as Big Area Additive Manufacturing (BAAM), has a build volume of 7’ x 13’ x 3’, with a deposition rate of 40 lbs/hr against BAAM’s rate of 40 lbs/hr. The system combines 3D printing and CNC routing to the largest high-quality 3D printing. The second generation of this technology referred to as Bertha will feature a volume of 8’ x 20’ x 6’ and a deposition rate of 100 lbs/hr.

Other researchers have developed technologies that could revolutionize the housing industry by using Additive Manufacturing to build structures. Massimo Moretti has devoted his time to applying 3D printer technologies to provide rapid prototype solutions to cater to the housing crisis in developing countries across the world. The project, known as the World’s Advanced Saving Project (WASP) mimics the construction method of the Mud Dauber Wasp building its nest. The goal of this technology is to build houses at virtually no cost using materials that are readily available on-site in third-world countries. The entire system is designed so that two people can assemble a 3D printer within 2 hours. Researchers at Winsun New Materials, China spent $3.2M USD over 12 years developing an enormous 3D printer. This printer measures a whopping 6.6m tall, 10m wide and 150m long. The houses are printed layer by layer using a mixture of cement and glass fibres to create a strong composite structure. Recently, Winsun proved that it could build 10 houses of 200 square meters in size using only recycled construction and industrial waste in less than 24 hours at a cost of only $4,800 each.

3D Printed Jet Engines

The scope of 3D printing has not only confined to housing but also has extended to jet engines, which are extremely difficult to build including many intricate parts, machined from many parts with high tolerances for a seamless assembly. Researchers at the Monash Centre for Additive Manufacturing, Australia have produced the first 3D printed jet engine, based on an auxiliary powered gas turbine engine from Safran, a French aerospace firm. The Monash Centre used Concept Laser’s X line 1000R 3D printer, a state-of-the-art industrial printer which fabricated components from metal powder with sizes up to 60cm x 40cm x 50cm.

Whatever your proof-of-principle prototype needs may be, there is a suitable rapid prototype method that exists which requires only a CAD model and material/finish selection. Software that delivers.STP files enable customers to bring ideas to life. We at Australian Design and Drafting help individuals and companies alike in this endeavour. The possibilities are endless as the technology is becoming more viable and is extending to large sheet metals as well.

Australian Design and drafting Services Architect developed a stunning 3D printing models 8

The architect developed a stunning 3D printing models

So far, we have seen too many examples to prove CAD design combined with 3D printing can produce very amazing works of art, but like Turkish architect Daghan Cam, those so dependent on software creation of art projects are also rare. With the help of computer simulation technology based on advanced algorithms, the robot he was able to create an image processing training complex, highly artistic be 3D printed structures.[/fusion_text][fusion_text]Daghan Cam is a quite different architect. He founded with his namesake architectural design company, which has offices in London and Istanbul, while he is also at the University of London Bartlett School of Architecture faculty. Prior to this, he worked with famous world-renowned architect Zaha Hadid has worked and has taught all over the world. In 2012, he received an honorary Master of Architecture (from the Architectural Association M.Arch Degree with Distinction ) title. Overall, Daghan Cam is a computational design, mechanical engineering and large-scale 3D printing specialist areas.

three dimensional design

And these what we can from his architectural design that can read keywords, as you can see from the chart of the design model, the essence of it is the best design futuristic and the Sydney Opera House combined, and in the Milan Design Week earlier this year on wide attention. In order to create these amazing and impressive model, Cam has developed a will GPU computing technology and algorithms combined. The so-called GPU computing is an application that calculated in part by the amount of heavy-handed GPU processing, the remaining portion of the program is still in the CPU running on the method, this method can achieve unprecedented application performance. Basically, these 3D printing effects, are his special programming through image processing robots. In order to develop these robots, he spent several years using the CUDA parallel programming model with NVIDIA GPU coded.

three dimensional design

Specifically, Cam Design Week show in these architectural model is Quadro K6000 graphics and Tesla K40 GPU accelerators to help lower accomplished superior computing power of these devices makes his algorithm is sufficient to support such a gorgeous 3D shape creation.In Boston Corporation and Belgium 3D print vendors Materialise help, Cam using the world's largest a stereolithography 3D printer will print the model time overall out. You might ask, such a shape very modern aesthetic, but can become a real building? As a senior architect, Cam 's answer is: it uses the least amount of materials to reduce construction costs, and its structural integrity is fully compliant.

three dimensional design3d printing models

After the great success of Milan, Bartlett School of Architecture now supports Cam to apply its technology to a wider range of projects. In large-scale 3D help print manufacturing technology and robotics, he and his team are trying to optimize their deep learning algorithms for real-time image processing and robotics. aims? Developed a robot construction technology, the technology can build these structures by their own decisions effectively. Some of which still need to rely on NVIDIA cuDNN deep neural network library for these industrial manufacturing robots for training.

3d printing models

Finally, Cam explains: "This form is just a prototype or artwork construction industry, which aims to explore the creative fidelity conversion process from intention-to information processing between." Obviously, while to this 3D printing innovation actually use in the construction industry, but also take some time.

Australian Design and drafting Services 3D print using beer 7

3D print using beer

When it comes to 3D print, it’s not just the machines that are progressing and evolving, the materials used to print the products is also advancing.

3Dom, a US company that specializes in eco-friendly printing filaments, has now come up with a way to 3D print using a material made from beer waste. Yes, it’s called Buzzed and consists of leftover hops and barley.[/fusion_text][fusion_text]The filament has a visible grain in it so the colour you get when you print is inconsistent, but that only adds to the quirkiness of this material.

3Dom says you don’t need any particular 3D printer to use Buzzed – any machine capable of printing Polylactic acid (PLA) will work. That means pretty much every 3D printer on the market.

If beer isn’t your thing, 3Dom also recently released a coffee-based filament too called Wound Up.[/fusion_text][/fusion_builder_column]

Australian Design and drafting Services Different Kind of CAD Conversion 6

Different Kind of CAD Conversion

If you want to bring your product to life, you will need to convert your plans, diagrams, sketches and other such files into a CAD format. Whether you plan on redesigning your home or are working for an engineering firm, using CAD will ensure a successful outcome. Instead of struggling with CAD conversion on your own, you can outsource CAD services to an outsourcing service provider. You will not only save on money and time but can also enhance your security for sensitive information.[/fusion_text][fusion_text]

Apart from these advantages, you can get access to different types of CAD conversion, such as the follows:

1. Paper to CAD

Legacy files are difficult to convert into CAD because the input has to be done in specific ways for the conversion. By opting for the paper to CAD conversion services, you will be able to easily send your legacy sketches, hardcopy drawings, blueprints and other such documents to the service provider, who will convert these documents into the CAD format that you desire.

2. Images to CAD

Do you need an image to be converted into CAD for your project? With image to CAD conversion, you can transform any image file (JPG, GIF, TIFF, BMP and PNG) into a varying number of CAD formats, be it AutoCAD and more. This not only saves both time and effort but can give you an accuracy level of 99.9%.

3. 2D to 3D

If you are a part of a design or construction project, then you will know the importance of 2D drafts. Blueprints are in fact one of the most popular of these drafts. Very often the need will arise to create 2D documents into a 3D format and for that, you will need expert 2D to 3D CAD conversion services.

4. PDF to CAD

Almost every project requires extensive planning and note-taking. Very often, these are compiled into a PDF format which can be easily used and shared within a company. However, PDF files can be cumbersome to use and will need to be converted into CAD. An expert service provider can convert any type of PDF (legacy drawings, computer-aided drawings and handwritten specifications) into CAD.

Before you finalize on a CAD service provider, ensure that they offer the above four CAD services as well as other options. You will also need to check if the service provider can guarantee the accuracy of 99.9%. Data security and privacy is something else that you will need to ask your service provider for.

Read more about the CAD conversion services offered by ASTCAD Design and drafting.


Australian Design and drafting Services Cost Effective SketchUp Services 5

Cost Effective SketchUp Services

If you have not yet used SketchUp for your business, then it’s time you used the software and reaped the benefits that it offers. With its accuracy of design and flexibility, builders, landscape designers, construction firms and the engineering industry, in general, have been able to effectively conceptualize, market and present their ideas. With the tool’s wide variety of visualizations, your company too can transform your imaginations into reality.[/fusion_text][fusion_text]Features of SketchUp

  • Easy to install and run, with a simple and uncluttered interface
  • Quick and easy modelling options
  • Rapid prototyping with 3D geometry abilities
  • Support from an active community
  • Comprehensive documentation
  • Wide range of colours and models to choose from
  • Options of pre-drawn components

Popular SketchUp modelling services

The SketchUp software can be used for a wide range of services, such as the following:

Through SketchUp, you can visualize real-life scenarios with the use of different options in colours, sizes and shapes. SketchUp services are extremely beneficial for architects, engineering firms, construction companies, builders, contractors, and landscape designers.

Benefits of outsourcing SketchUp services

SketchUp has opened a whole range of design and modelling possibilities. However, if you and your team do not know how to use SketchUp, then learning and mastering the software can take up time and effort. This is where ASTCAD Design & Drafting comes in. Instead of trying to figure out the use of SketchUp on your own or hiring an expensive team of specialists, you now have the option of outsourcing SketchUp services to ASTCAD Design & Drafting. You will immediately get access to a dedicated team of professionals who have expertise in using SketchUp for designing and modelling. Outsourcing SketchUp can help your business leverage the following benefits:

1. Minimized cost

When you outsource to ASTCAD Design & Drafting, you can enjoy cost savings in terms of overhead cost and capital expenditure. You will also not have to make heavy investments in technology or infrastructure. Outsourcing can not only help you widen your profitability but can also help you minimize your cost by 60%.

2. Better resource optimization

Through outsourcing, you can free up your time and resources, while tapping into the expertise on SketchUp artists. Your management can focus completely on your core business activities like sales, marketing and productivity, without having to supervise the outsourced SketchUp services.

3. Fast turnaround time and consistent services

ASTCAD Design & Drafting teams have the capability to work on a 24/7 basis and complete your SketchUp assignments within your timeline and budget constraints. Since the ASTCAD Design & Drafting team will have experience in using SketchUp, they can ensure that all your projects are completed without any setbacks.

4. Access to superior SketchUp skills

SketchUp artists from ASTCAD Design & Drafting have expertise and skill in using all the features of SketchUp. They are also constantly provided with training in order to effectively meet the SketchUp requirements of customers. Outsourcing can give you access to a skilled team of designers who will ensure your project is a success.

Why not give your business a competitive edge by outsourcing SketchUp services? We, at ASTCAD Design & Drafting, will be glad to assist you with your requirements. Get in touch with us for SketchUp services.

Australian Design and drafting Services 3D printing house to build in 20 hours! 5

3D printing house to build in 20 hours!

3D printing seems to be the latest “ultra-cool” movement in technology. Ever since I heard about 3D printing (I only knew about small 3D printers), I began to imagine how would the world look like if 3D printing will become such a common procedure like paper printing. A world full of home-made toys, utensils, dishes and God knows what else. But, what if, 3D printing could be that cool as to solve the issue of shelter across the world, what if there could be a feasible solution to 3D print houses?[/fusion_text][fusion_text]

Such was the idea of ContourCrafting, whose CEO had a very insightful TED talk this year (video below). Professor Behrokh Khoshnevis, from the University of Southern California, is the man behind this awesome concept. In plain English, he wants to build a 3D printer that would be able to build a house in less than one day, in 20 hours!

This huge 3D home builder will create the entire building, from the foundation, floor, walls, ceiling and even plumbing and more advanced stuff such as electrical wiring! At the beginning, I thought it could only build the main block of the building, but apparently this 3D printer from ContourCrafting is far more crafted than that! It would build the house in such a way that you’d only need to put the windows and the doors in the cutouts that have been left by the huge construction robot.

Maybe you wouldn’t like living in such a home built by a gigantic 3D printer but think about almost 1 billion people that literally don’t have stable shelter. Do you think they’ll think twice before moving in? This is the immediate and most urgent use for 3D printed home, but I can imagine that for the rest of us, or those that have money, being able to print your own house in less than one day would be really something.

Awe-inspiring 3D printers that will reshape the construction

Right, from the beginning I asked myself: how are they going to build big buildings, with hundreds of flats? How are they going to achieve that? The CountourCrafting guys have created the model of a 3D printer capable of building even that! And something that really surprised me was some sort of a 3D printer that was capable of climbing as soon as he finished printing a level!

It seems that this impressive technology is also capable of building more advanced buildings, with advanced designs. By using a perfectly calculated geometry and strong material, these house-building 3D printers can even replicate historic or very advanced buildings. How cool is that!

Sounds great on paper, but in reality…

Behrokh Khosnevis says that this technology will prove to be far more secure and safe than current construction methods are. He says that 10,000 workers die per year in the USA alone and 400,000 more get injured during construction. 3D construction printers would eliminate that and also decrease a lot the time needed to build a house. But there are a few drawbacks that we can’t ignore, especially not at this moment.

Imagine how many jobs would get lost if this technology were to become mainstream. I have always supported a civilization that’s relying on technology, thus being more automated than manually run, but right now, this kind of technology is simply impossible. I can see a few houses being built using this concept, but it will not gain mass appeal because the government needs to keep the population employed. But, then again, the same thing happened when the Industrial Revolution began.

People were afraid that they were going to lose their jobs because technological devices were there to take tasks from humans. But we look behind and we can clearly see that humanity found a place for everybody. So, this would be an issue for the moment, but I can imagine that by 2050 or so, 3D printed homes will not be just a “cool concept” but rather something ordinary. The appearance of the Web didn’t kill jobs, it changed the world; 3D printing won’t kill construction, it will reshape it.

A brave new world

This technology is so exciting that I want to be able to be a part of it, I want to see 3D printed houses around me and people living in them. I want to see huge 3D printers outside towns, building from the ground homes for everybody. And I get even more hotheaded when I start imagining that we could use this technology to build houses on other planets, starting with the Moon, for example! We live in exciting times.[/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]

Australian Design and drafting Services The world’s largest 3D printer 4

The world’s largest 3D printer

The big guy up to 12 meters was built out of the object is achieved by the use of local materials and less energy as possible to build a house almost zero cost, to provide quick and inexpensive relief to the affected areas in the future due to rapid population growth and a surge satisfied housing demand.[/fusion_text][fusion_text]The big guy up to 12 meters was built out of the object is achieved by the use of local materials and less energy as possible to build a house almost zero cost, to provide quick and inexpensive relief to the affected areas in the future due to rapid population growth and a surge satisfied housing demand.

By increasing material manufacturing on Earth and other planets rapid build houses and tightening budgets is a very interesting point of view, more than one reason. In space, which will provide us with a lot of design flexibility for those unique, highly functional but can not simply be assembled with other methods of building to make way.

On our own planet, 3D printing houses will become more common, the United Nations predicts that the world's future will add almost 100,000 new homes a day within five years.

Compared to other houses, the cheap and fast to build housing units made to make by earthquakes, cyclones and floods and other natural disasters in the affected areas recover quickly. In case of emergency, cost, energy and material restrictions it is very large, so people need never unusual sources of inspiration.

We can say that no one can do better than potter wasps (wasp/hornets) better, it methodically countless layers of mud everywhere covering layers, eventually forming nest-like pottery. For its part, the industrious insects may be the world's smallest (and most environmentally-friendly) 3D printers.

Italian engineering company manufacturing a variety of sizes WASP 3D printers, recent plan to follow its name, build a shelter for human habitation. Last year, the company exhibited a 4.5-meter printer that can handle simple and highly flexible material, such as mud, clay or natural fibres. Now, the company is even higher to create 3D printers, 12 meters high in this 3D printer is called the Big Delta.

It consists of a 6 m diameter solid metal frame support, with simultaneous rotation of the nozzle mixer functions can be uniformly printed material, it is said to work just ten watts. It can use a variety of materials, from clay to clay, and can be reinforced with a small number of chemical additives on the structure. It is also possible to use cement, but this will contradict with the company's green initiatives.

The company said it through 3D printing houses to provide health assistance to the affected areas, such as on the walls of houses repellents.

Since 3D printing house in shape, size and material selection are very resilient, so its potential is far more than meet the needs of developing countries affected areas. In fact, WASP represents the southern coast of Sardinia Iglesias town have shown interest in the Big Delta, the recent use here has the first printer built out of housing units.

Big Delta will be exhibited in Rieti, Italy Lazio region, it will also become the focus of the stage.

How to Solve Engineering problems with Finite Element Analysis (FEA)

Engineering problems with Finite Element Analysis (FEA)

With finite element analysis or FEA services, you can easily find an apt solution for any complex engineering problem by subdividing your problem into small and manageable finite elements. FEA services involve the use of finite elements to successfully reduce the complex differential equations of a structure to a set of easily solvable linear equations.[/fusion_text][fusion_text]In short, finite element analysis can be described as an engineering technique that is used to predict the response of structures and materials to applied loads such as temperature, force, displacements and vibration. Before you develop a design, you can model it, evaluate its performance and address failure points with FEA services.

Today, almost every engineering discipline requires finite element analysis. Industries like manufacturing, plastics, electronics, energy, geotechnical aerospace, automotive, biomedical and chemicals regularly use FEA services. Apart from playing an integral role in evaluating classical static structural problems, FEA is also widely used in radiation problems, mass transport, dynamics and heat transfer amongst others.

ASTCAD offers cutting-edge FEA services

If your organization wants to optimize a new design, verify the fitness of an existing facility or evaluate a new concept, then you can opt for finite element analysis services from ASTCAD Design & Drafting. Accurate FEA services require the skills of experienced analysts and advanced technologies. ASTCAD can provide you with world-class FEA services at an affordable price. Over the years, ASTCAD has earned the reputation of having the world’s best engineers and access to sophisticated analysis tools.

Get complete FEA solutions from ASTCAD

ASTCAD have the best personnel, latest equipment and cutting-edge tools to perform comprehensive finite element analysis, such as:

  • Mechanical drop and impact analysis
  • Modal analysis and forced vibration (Sine and Random)
  • Thermo-mechanical analysis (Fatigue and Creep)
  • Parametric sensitivity analysis
  • Warpage analysis
  • Material stiffness analysis
  • Shock Spectrum analysis

Top 5 benefits of outsourcing FEA services

By outsourcing finite element analysis services to ASTCAD, your organization can leverage the following five benefits:

  1. Drastically reduce your development time and the cost of new products
  2. Get valuable product reliability insights
  3. Improve the quality of the product
  4. Easily conduct and simulate conditions like temperature cycling, drop, vibration and fatigue life tests
  5. Investigate and quantify different design scenarios ( varying geometries, changing materials etc)

By partnering with ASTCAD for FEA services, your company can enjoy fast, accurate and professional finite element analysis services at a low cost. With access to expert FEA structure stress analysis, engineering design and simulation using CAD, you can solve your engineering problems. From the initial concept to the final product launch, you can be sure of 100% customer satisfaction, when you partner with ASTCAD for FEA services.

Have you outsourced mechanical engineering services before? If yes, how did it go? Would you consider outsourcing FEA services? Let us know your thoughts, views and questions on outsourcing to ASTCAD by leaving a comment in the box below. We, at ASTCAD love, to hear from you!

Reverse Engineering Using 3D Scanners to Generate CAD Models

Reverse Engineering Using 3D Scanners to Generate CAD Models

Today’s engineer lives and thrives in a 3D CAD model world. CAD models provide design versatility and a direct link to rapid prototype development. As a result, our libraries of CAD models are ever more important. Reverse engineering using 3D scan data is a fast and efficient way to generate CAD models when an object exhibits a complex shape or when a 3D model does not exist for a component. 3D scanning equipment captures the physical geometry of a component and transforms it into a 3D digital model.[/fusion_text][fusion_text]Reverse engineering can be used to:

  • Obtain CAD data that captures an object’s original design intent
  • Design a new part to fit a legacy part
  • Accurately model performance surfaces
  • Update CAD models of your tooling to match shop-floor changes
  • Redesign a part without manufacturing defects
  • Modernize your manufacturing process
  • For animation or visualization
  • To perform a dimensional and comparative analysis of an object
  • For performing FEA or CFD analysis
  • To digitally reconstruct a damaged part so that it can be reproduced in its originally intended form using rapid prototyping or CNC technologies

3D scanning technologies come in many shapes and forms. Some are stationary, requiring the part to be brought to the scanner. Scanning laser technology then surveys the 3D contour of the surface and saves the geometrical data to a CAD model. 3D scanners have been used to scan vehicles, aeroplanes, historic monuments, ships, submarines, buildings, monuments, sculptures, consumer products, to name a few.

An example of a complex 3D scanning problem is the 3D scan generation performed by Creaform using their HandyScan3D handheld unit in combination with a long-range scanner of the United States Marine Corps War Memorial replica, located at the Marine Corps Recruit Depot in South Carolina. The purpose of the project was historical preservation so that the memorial could be recreated in the future if it were ever to suffer damage. The handheld scanner used for this application is capable of scanning ½ million points per second with up to 30 sq.m resolution accuracy and 60 sq.m volumetric accuracies.

How do 3D scanners work?

Laser scanning passes a laser line over the surface of an object. Surface data is captured by a camera sensor mounted in the laser scanner which records and saves three-dimensional information to a model. Regions of an object are scanned at once, allowing hundreds or thousands of closely positioned points to be surveyed at once. Several types of laser scanners exist, including line, patch, and spherical. Laser scanning is performed without making contact with the object. Digitizing is a contact-based form of 3D scanning in which a point or ball probe is scanned over points on the surface of an object to record geometrical position information. Digitizing is more accurate for industrial reverse engineering applications when the precision of a complex part is desired, whereas 3D laser scanning is far more desirable for non-standard or organic shapes such as sculptures or a person’s face. Digitizing is often limited to smaller objects, while 3D laser scanning is more versatile, and can be used to scan large objects, such as vehicles or buildings. White light scanning, CT scanning and photo image-based systems are alternate methods that are being used for 3D scanning applications.

Limitations of 3D Scanning

  • Bright white light sources can be detrimental to 3D scanning technologies, requiring many outdoor laser scanning projects to be conducted after daylight hours.
  • 3D scanning works better on matte finishes than highly reflective surfaces, which reflect white light. Spray-on solutions exist that can effectively dull a surface prior to scanning.
  • Some intricate objects, such as large sculptures, require the use of stationary and handheld scanners to reconstruct the entire surface. This process requires a detailed and intricate image and position registration – fortunately, many companies exist that have mastered this process and provide solutions for these difficult problems.

Inspection Using 3D Scanning Technologies

Inspection is another valuable use of 3D scanners, allowing parts to be rapidly checked to ensure that manufacturing tolerances have been met. 3D scanning technologies are commonly used in First Article Inspection, where high accuracy and extremely fine resolution are required in order to verify that a physical part has been produced according to production drawings. Scanners can also inspect a “final” part so that final part models and drawings can be generated for use as blueprints and for re-manufacturing a part. Inspection of aging components or systems is also possible using these technologies. Foraging ships or aircraft, for example, or when modifications are required to update the vehicle, a reverse engineer using laser-based 3d scanning technologies can produce the physical dimensions of the vehicle or its parts.

A prime example is reverse engineering an F-15 test plane for NASA engineers conducted by Direct Dimensions, Inc. (DDI) in 2006. The engineers at NASA desired to modify the test plane and obtain in-flight data to verify their design improvements. Due to the daunting costs associated with full-scale testing, and the danger associated with measuring pressure on a plane moving at supersonic speeds using a chase plane, they chose to reverse engineer the plane so that they could simulate the design changes using computational fluid dynamics (CFD) software prior to implementation and testing.

DDI used the FARO LS 3D laser system, a portable scanner designed for scanning the shape of large objects, capable of acquiring up to 120,000 points per second over ranges of up to 80 meters. This technology allowed DDI to quickly and accurately capture the exterior shape of the jet with an accuracy of +/-6 millimetres. The raw 3D scan data provided a high-resolution point cloud of laser-reflected spots off the plane’s surfaces that were digitally processed and converted to CAD format. Over 50 individual scan from different positions were used to generate over 50 million data points that were used in reverse-engineering the F-15.

Australian Design and drafting Services Importance of CAD Platforms in Designing Products 4

Importance of CAD Platforms in product designs

In the present age of rapidly computerized applications and CAD product designs, it is very likely that many future electromechanical products will have an embedded processor within them. Consider these two examples:

  • Several decades ago, the automobile industry designed automobiles with carburetion technology. This was been replaced by computer-driven electronic ignition systems. Likewise, manual braking was replaced by computer-assisted “antilock braking.” Recently, the concept of a computer-operated driverless car was mentioned as becoming a real possibility. The idea is not too far-fetched when you consider that computer-managed aeroplane navigation is a mature technology.
  • Many products such as copying machines, refrigerators, HVAC systems, and robotic systems provide real-time electronic communication between the customer and the manufacturer. For example, downtime for copying machines is significantly reduced because the product is proactive in sensing impending failures and calling for service. This makes the customer believe that the product is very reliable and virtually failure-free.

These two examples illustrate the trend in product development which combines CAD hardware design, embedded computer technology, and IT (Information Technology) into a package which changes a “dumb product” into a “smart product”. A smart product, therefore, communicates with both its manufacturer and with its customer in a manner which improves the functionality of the product and provides optimum performance of the product.