Fused Deposition Modelling Explained

Posted in 3D Printing, CAD

While there are numerous 3D printing methods, the most widely used one is Fused Deposition Modelling (FDM) where the printers are equipped with a thermoplastic filament, which is heated to its melting point to create a 3D object.

FDM was first invented in the 80s by Scott Crump, chairman and co-founder of Stratasys, widely recognized for its 3D printers and has since been adopted by various 3D printing companies under different names.

The beginnings of the FDM process rest with computer-aided design (CAD). An object’s CAD file is converted to the .STL format before the 3d printer can understand it. FDM printers use two major materials-a modelling material and a support material. The modelling material constitutes the end product while the support material serves as a scaffolding to the printed object. These two materials then turn into filaments during the printing process, melted by an extrusion nozzle.

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Source: www.livescience.com

The printing time depends on the printed object’s size. While smaller, thinner objects are printed quickly, larger, more complex objects take time. FDM is a slower process as compared to other processes such as stereolithography or selective laser sintering. When the object is released from the FDM printer, its support material is removed by either snapping it off by hand or soaking it in a detergent solution or water. It is then painted, sanded or milled to enhance its appearance.

FDM commonly uses printing material such as acrylonitrile butadiene styrene (ABS), a thermoplastic used in several consumer products. FDM also makes use of other thermoplastics such as polycarbonate (PC) or polyetherimide (PEI).

FDM is used in a diverse range of industries, ranging from consumer goods to automotive, throughout their manufacturing process.

For your 3D printing needs, contact us today via the form at right and order the virtual models using our exceptional CAD services!

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Student Designs 3D-Printed Brain-Controlled Hand

Posted in 3D Printing, CAD

Mahonri Owen, a PhD student from Waikato University, is in the news lately for his extensive work on hands. Yes, you read that right. Owen has been spending to the tune of six hours a day, for over the last year, studying hands, designing them and 3D printing them in his lab. Backed by the noble motive of helping those physically impaired, he aims to create a prosthetic hand that the owner can completely control with his brain. So far, he has enjoyed some success in his endeavour. He has been able to create various types of prosthetic hand using micro-controllers and other off-the-shelf components.

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Source: www. stuff.co.nz

Owen has already created the ‘skeleton’ of the prosthetic equipment. The process involves intricate electronics and mechanics, has over 50 major components and took him over seven hours to print. The entire process is run using Computer Aided Design (CAD), which helps in mapping out the mechanism while the components are built using a 3D printer. The printer builds the design up by laying it down one layer of 0.3 millimetre at a time, waiting for it to harden before proceeding to add the next one.

While the hands are able to carry out basic movements such as opening and closing using EEG (Electroencephalography), Owen is aiming at more sophisticated hand functions. He envisages to make the drill amputees go through less of a torment and stresses on how the joy of helping others drives him to pursue the cause.

Owen finishes his degree in 2018 and plans to continue with his research through the end.

While the whole exercise may seem like an uphill task to most beginners, good 3D CAD training can turn you into a 3D printing pro too. Get engineering CAD services at The Magnum Group at a price up to 40% lower than what you’d have to shell out in the West! All you need to do is ask for us right here.

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3D Printed Wrinkle Cure Now Available

Posted in 3D Printing, CAD

Who hasn’t had bouts of panic when old age approaches, bringing with it the promise of unflattering wrinkles, sagging skin and crow’s feet? For those looking to circumvent the Botox needle, a new cure by Welsh dermatological company Innoture comes to the rescue. Named Radara, this innovation promotes natural skin-filling processes of the body. These crescent-shaped patches come filled with 3D printed micro-needles and can be placed around the eyes, thus stimulating collagen production in and around aging skin.

Radara eye patches are nothing like existing solutions in the market. Their functioning is based on the micro-needling technique that speeds up the trans-dermal delivery of substances, thus leaving no marks on the skin. The active pharmaceutical ingredient in the product comes in close contact with the skin and through the process of diffusion, it flows deeper into the skin and sometimes even into the bloodstream.

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Source: 3ders

Micro-needling is a technique wherein the surface in contact with the skin is coated with tiny pins which puncture the dead skin layers, creating pores for the active ingredient to enter into the skin. Innoture is able to make the spikes finer than are commonly manufactured owing to the 3D printing technology in medical-grade polymer. This ensures that no marks are left on the skin, unlike other solutions like Derma Rollers that leave behind red holes that take a day to recover. Radara eye patches have 2,000 microscopic and 3D printed needles so fine they are barely visible to the naked eye.

Radara’s skin rejuvenation technique is unique in that it works on static wrinkles, the ones that stay on the face when it’s relaxed, as opposed to Botox that doesn’t do much for rejuvenation and works only on dynamic wrinkles by freezing muscles. Test results from 3D printed patches so far are promising. A clinical trial has shown a 35% reduction in wrinkles and fine lines in just four weeks. While the patches are not a miracle product, the results do point out to great potential.

Your 3D printer has to be fed a digitized version of what you need printed. We have created thousands of these digitized versions (aka a 3D virtual models) at very low prices, so do get in touch via the form at right or by emailing us here if you need a 3D model done inexpensively and in a hurry!

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Metal Powder Finds Its Application in 3D Printing

Posted in 3D Printing, CAD

3D printing is fast gaining popularity and how! Engineers from Northwestern University in the US have now devised a quick and inexpensive method to print 3D objects using metal powders and rust. This new technique can potentially find applications in creating fuel cells, medical implants, batteries and parts for aeronautical equipments, to name a few.

The existing manufacturing methods make use of expensive beams, lasers and large metal powder beds, resulting in an expensive and time-consuming process. All this is set to change with the Northwestern team’s latest innovation, which replaces old methods with liquid inks and common furnaces, leading to a more efficient and cheaper process. This method is suitable for a host of metals, alloys, compounds, metal mixtures et al, giving it an edge over conventional manufacturing processes, which are limited in their applications and architecture.

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Source: 3ders

The liquid ink used for the printing process is made of solvents, metal powders and elastomer binders, a combination which enables it to produce densely packed metallic structures with the help of a syringe-extrusion process. While the process starts out with liquid ink, the extrusion helps the material solidify instantaneously and fuse with material created earlier, thus allowing for even large objects to be created in a short span of time. The creators then fuse the metal powders by heating the structures up in a furnace.

On the first go, this may seem like a complicated process that works only after uncoupling sintering and printing, but the fact remains that the separation of the different steps in the process makes the whole process a lot easier. Adding an extra step here is helpful in the sense that it allows for a higher printing speed and structural integrity.

The team remains confident of the fact that this innovation will, in the near future, be able to 3D print full, foldable metallic sheets.

Regardless of which 3D printing process you use, it is imperative that you feed your 3D printer a computer file containing a 3D model created with 3D software. The question is, where do you get such a model made. The answer is, with us, TMG!  We have created thousands of models. Message us from the form at right to ask for our low prices and short delivery schedules.

To the 3D printing of your dreams,

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3D Printed Textiles Enable Wearable Computers

Posted in 3D Printing, CAD

After smart phones, it is time for smart wearables to take the technology world by storm. Whoever thought no overlap between computers and clothing was possible is in for a pleasant surprise, all thanks to 3D printing. With Tamicare recently announcing commencement of its production line for 3D-printed textiles, the idea of wearable tech is likely to gain greater traction than ever.

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3D-printed smart textiles are created using conductive fibers woven into the fabric during the production process or applied to the finished garment. The whole drill adds a few steps to the manufacturing process. This can be simplified greatly by printing wiring and sensors along with the fabric. 3D printing has given a radically new touch to smart textiles.

3D Printed Elastic Fibers offer unlimited opportunities for innovation to both product developers and textile manufacturers, allowing for myriad textures, pattern, colors and fabrics to be seamlessly interwoven. Perhaps the greatest advantage this technology offers over traditional manufacturing processes is that it enables instant creation and mass production of fabrics without the hassle of cutting and weaving, thus saving greatly on time and turning in strong fabrics. The fully automated process only adds to the benefits of this useful technology. Additively manufacturing conductive textiles using 3D printing increasingly seems like the next logical step in the world of smart wearables, be it for clothes, shoes or other categories.

Image Courtesy: Engineering.com

While 3D-printed wearables are already garnering attention in fashion and design circles, it is now the tech world that is set to gain from this technology. Big companies like Adidas and Nike have also displayed interest in 3D printing their footwear, owing to the great many advantages offered by the technology. It is not completely far-fetched to envisage a world where the average person would be able to pick up the latest trends in 3D printed clothes.

Want to get your 3D model printed in India at a fraction of what it would cost you in the Western hemisphere? All you have to do is message us here with details on what you need printed!

To your 3D printed dreams,

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