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Cazza 3d printing


Cazza Construction Technologies Introduces 3D Printing Construction Robots and Sees High Demand - 3DPrint.com

We first heard about California-based technology startup Cazza Construction Technologies last November, when it entered the scene with its ambitious goal of constructing 3D printed smart cities all around the world. The 3D printing construction technology company got off to a good start when it announced a collaboration with Dubai, and pledged to provide the city-state’s government with its construction automation technologies to help with 3D printed construction in the region, including a 3D printed skyscraper. Now, we’re finally getting a good look at the 3D printing construction technology of the future that the company has kept under wraps for over a year.

“Over the past year we’ve seen major progress working with the Dubai government as well as governments across the world. We are in the process of expanding to Africa, South America, and even Antarctica,” Chris Kelsey, the CEO and Co-Founder of Cazza, told 3DPrint. com. “Our machines were sold out two days after announcing them for sale.”

Meet Cazza’s robotic construction 3D printers – capable of building commercial buildings, houses, villas, and other unique structures. The robots combine large-scale 3D printing with traditional building methods, designed to make construction faster, along with more eco-friendly and cost-effective.

“The possibilities of 3D printing are still being explored and it’s an incredibly exciting time to be involved with this technology. We feel that architecture presents the greatest promise in terms of efficiency and capabilities,” Kelsey said. “We intend to revolutionize the construction industry through disruptive technology, making building safer, faster, more cost effective and environmentally-friendly.”

L-R: Chris Kelsey and Fernando De los Rios

Kelsey and Fernando De los Rios, Cazza COO and co-founder, formed the startup when they were 19 and 26 years old, respectively, to expand the possibilities that modern technology, like 3D printing, opened up for large-scale construction; similar to how steel, mass-produced glass panes, and reinforced concrete disrupted the field in the 19th century.

The company’s patented 3D printing construction robots, the X1 and the X1 Core, were launched this June, and represent the latest in automated building. The robotic platforms use concrete to print both large-scale and small-scale construction projects. Both robots feature safety sensor networks and continuous tracks, making it easy to maneuver and build structures onsite or indoors.

The X1 and the X1 Core both come with available upgrade packages that include a robot arm telescopic range extender, a hydraulic height extender support base, and a nozzle mounted smoothing mechanism; you can also upgrade the X1 Core with a field autopilot navigation. Every purchase comes with a two-year warranty, user manual, Cazza’s programming and control software, and full operator training courtesy of the experts at Cazza’s specialized building centers around the world.

X1
X1 Core

“We wanted to ensure that Cazza’s 3D printing robots could be used around the world, not just limited to one country or territory,” explained De los Rios. “We believe that construction that provides increased value for money and has a positive impact on the environment, should be available to all.”

Other technical specs include:

  • Mobile tracked platform: 3.6 x 3.4 x 0.8 m for X1 and X1 Core
  • Rated payload of main robotic arm: 90 kg for X1, 550 kg for X1 Core
  • Robotic arm maximum frontal reach: 3.9 m for X1, 4.2 m for X1 Core
  • Protective covers: plastic-reinforced for X1, carbon fiber-reinforced for X1 Core

Rendering of Dubai 3D printed skyscraper by Aleksandar Grusanovic

Since Cazza introduced its robotic 3D printing construction platforms to the world this summer, the company has been “inundated” with requests and inquiries, which shows that there’s a lot of demand for automated construction technology in the world. We already know that the startup is working with Dubai – it worked on standardizing 3D printing regulations and processes for construction when it was accepted into the Dubai Future Accelerators (DFA) program – but it plans on continuing its global expansion.

“We will be opening offices in LA, Vancouver, and NYC within the next three months,” Kelsey told 3DPrint.com. “Within the next three years Cazza’s technologies will be the norm for mainstream construction in North America, Europe, and the Middle East just to start.”

Initially, only a limited quantity of Cazza’s X1 and X1 Core 3D printing construction robots will be available for purchase; you can visit the website for more details. To check out the company’s technology for yourself, you can watch the first demonstration video below:

 What do you think of Cazza’s 3D printing construction robots? Discuss this and other 3D printing topics at 3DPrintBoard.com, or share your thoughts in the Facebook comments below.

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Tagged with: 3d print construction • 3d printed construction • 3d printing and robotics • 3D printing construction • 3d printing in construction • 3d printing robot • Cazza Construction Technologies • Cazza X1 • concrete • construction 3d printing • construction robot • dubai future accelerators • large-scale 3d printing • startup

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Cazza No More? « Fabbaloo

By Kerry Stevenson on September 14th, 2018 in Corporate

Tags: building, cazza, construction

The X1core construction 3D printing robot [Source: Cazza]

It appears that construction 3D printer manufacturer Cazza may have disappeared.

Cazza first appeared in 2017, having been founded in 2016, with the intention of producing a mobile construction 3D printing robot. The image at top shows their concept. 

If you can imagine this device in operation, it would be precisely depositing layers of extruded concrete at a building site, periodically moving to a new extrusion position. The concrete supply would be pumped from a nearby source. Cazza has previously stated their print speed was about 100mm per second. 

This approach has a number of great technical challenges due to the mobility of the extruder. 

In most 3D printer designs the extruder’s position is precisely known simply due to the mechanical design: a nozzle can compute how far away it is from the print surface by counting the steps its motor has executed, for example.  

But this is not possible in a free space concept like Cazza’s. Thus they would have had to have designed an extremely sophisticated positioning system that would somehow use optical or other sensors to figure out exactly where the extruder was located.

I got the impression they were using some form of AI software for this based on reading their material, but it did seem like a bit of a stretch.

The company was set on selling franchises to those willing to put the machines to work on construction sites worldwide, which seems like a good idea as a startup could not possibly deploy large-scale products such as this globally. 

There were even reports that the company, founded by then-19-year-old Chris Kelsey, had struck a deal with the Dubai government to 3D print an entire skyscraper. The Dubai government has been pushing 3D printed construction technology for some time now for reasons I don’t understand. 

There were some renderings of the Cazza machine, but I never saw an actual image of the machine or its development itself.  

This week, however, I went to visit Cazza’s site and found this: 

Cazza’s home page today

Their site seems to be missing. Completely. 

Could this be a site error? Perhaps they are down today?

That’s possible, but what is also true is that their domain, Cazza.co, expired on Sept 11th. Unless renewed and pages restored, their site is officially gone.

That sounds to me a lot like they have shut down operations. Then I read this post on Medium that details a corporate saga in which their CFO appears to have run away with the cash. CEO Chris Kelsey titled the post “How my ex-cofounder stole almost $1m USD from Cazza”, which is more or less the bottom line of the article. 

Then there’s a subsequent Medium post only a few weeks ago in which Kelsey admits using another company’s video of a construction 3D printer, “in order to complete the final part of getting into the Dubai Future Accelerators”, apparently with permission, but then seemingly having it revoked. Very confusing!

He also added in another Medium post that he had lied to the press about the Cazza equipment being ready, though maintains that the plans were all feasible:

“I lied and said the machines were ready so that we could attract global press attention, then use it to raise funding to actually build the machines (which is exactly what ended up happening).”

The overall result seems to be that Cazza is indeed officially dead. 

But not exactly dead. Kelsey says: 

“By the way, I’m rebooting Cazza under the name Our New World and the technology we’ll be releasing is going to change the world to a degree that’s never been done before.”

Could this be a resurrected zombie Cazza? It sounds like the project would be even more ambitious. While the company, noted as being based in Mazatlán, Mexico, does not yet have a web page as of this writing, it does have a short blurb on its LinkedIn page, saying: 

“The New World Drone (NWD) has three functionalities.
Obliterate: Laser beams chop trees and cut rock to clear landscape.
3D Print: Material Trucks (MTs) connect to the drone via the 3D printing tube.
Lift & Place: The drones Lift and Place (LP) prefabricated elements.”

All the controversy above aside, I can definitely get behind chopping lasers! 

Via Cazza (Dead), Our New World (Not alive) and LinkedIn

 





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Kerry Stevenson, aka "General Fabb" has written over 8,000 stories on 3D printing at Fabbaloo since he launched the venture in 2007, with an intention to promote and grow the incredible technology of 3D printing across the world. So far, it seems to be working!

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Printing of ABS (ABS) plastic using FDM technology to order

Printing of ABS (ABS) plastic using FDM technology to order

Printing ABS (ABS) with plastic using FDM technology to order

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3D printing technologies - FDM, FFF, SLA, DLP, PolyJet, CJP, SLS, SLM

FUSED DEPOSITION MODELING PRINT TECHNOLOGY – + FDM

One of the most popular, simple and cheap 3D printing technologies is Fused Depsition Modeling. The technology was invented more than 20 years ago and implemented by Stratasys, and still it remains the most popular. The principle of building a prototype using this method is simple and clear. The simulated 3D object in STL format is transferred to the 3D printer software. After placing the model in a virtual working chamber (automatically or manually), cutting the model into horizontal layers, the 3D printing process begins. The extruder print head melts the filament, laying down layer by layer according to the model data. If necessary, before starting printing, auxiliary structures (supports) are automatically or manually placed on a virtual 3D model, which, after printing, can be removed with a special solution or manually.
There are many types of equipment that print using this technology. They differ in terms of accuracy, the number of printheads, the size of the working platform, the presence or absence of a closed working chamber, consumable options, etc. There are models that support the ability to use different materials when printing. There are also industrial FDM 3D printers and personal ones.
The following materials can be used in FDM 3D printing:

  • ABS
  • PLA
  • SBS plastic
  • Nylon
  • Polycarbonate
  • HIPS support material
  • PVA support material
  • PETG plastic
  • FLEX rubber-like plastic
  • RUBBER plastic with rubber properties

The most popular materials are ABS and PLA. Products printed using FDM technology are characterized by elasticity, strength and stable physical characteristics, depending on the selected material. The construction accuracy varies from 0.027mm to 1mm. As a rule, the printed object has a layered (ribbed) surface, the severity of which depends on the thickness of one layer. This effect can be eliminated by post-processing with chemicals or grinding.
The advantages of FDM 3D printing technology include sufficient speed and ease of manufacture of products, safety, high accuracy, a wide choice of materials, as well as ease of use and maintenance of equipment. In addition, consumables for printing in this way are affordable. All this together makes this technology the most highly competitive and affordable in economic terms.
FDM 3D printing technology can be used for rapid prototyping and even small series production. Depending on the selected consumable material, this technology can be used to create parts of mechanisms, toys, interior items, jewelry, souvenirs and much more. The use of high-strength engineering thermoplastics makes it possible to apply this 3D printing method to products used in the aerospace industry.
Our company has several 3D printers working on this technology. You can order high-quality 3D printing using FDM technology from us with any of the available materials and in any available color option. We guarantee you the quality and efficiency of order execution of any degree of complexity.
To order 3D printing using FDM technology, you need to send us a file in STL format. Trust our professionalism and take advantage of the most affordable 3D printing.

STEREOLITHOGRAPHY PRINT TECHNOLOGY – + SLA

SLA 3D printing technology or laser stereolithography is based on the layer-by-layer curing of a liquid photopolymer under the action of a laser beam. The technology was invented in 1986 by Charles W. Hull, who founded 3D Systems, which manufactures 3D printers that print using this technique.
Photopolymer, which in this case acts as a consumable, is a resinous substance that changes its properties under the influence of ultraviolet radiation - it polymerizes and hardens. In this case, the wavelength and time of exposure to radiation will depend on the environmental conditions and the specific material.
The principle of building a model using laser stereolithography technology at the initial level is similar to any other - the modeled object in STL format is loaded into the 3D printer software, placed in a virtual working chamber and cut into layers. Photopolymer resin is poured into a special container. It contains a working platform on which the part will be built. Initially, the working platform is set so that it is covered with the thinnest layer of photopolymer (0.05-0.13 mm). This will be the size of the layer when printed. Then the laser is turned on, it irradiates the areas that will later become parts of the finished product. As a result of irradiation, the material hardens and the working platform sinks to the extent of the layer. The algorithm repeats again until all programmed layers are exhausted. Then the finished product is immersed in a special bath, into which a composition is poured to remove excess elements. And at the end, the product is again irradiated so that it gains maximum strength.
Stereolithography, like most other 3D printing technologies, requires supports. After printing is completed, they are removed manually.
The main advantages of stereolithography technology are the highest precision and the ability to create the smallest and thin-walled objects. The technique is distinguished by easy post-processing of products and their almost perfect surface. The disadvantage of this technology is the impossibility of using several materials at once. Color printing is also not possible. The properties of the model and its color will determine the initial characteristics of one photopolymer. In addition, the cost of such printing and equipment is not cheap.
Due to the fact that stereolithography allows you to get a model of almost any degree of complexity, the main scope of this 3D printing is research. And due to the highest accuracy and detail, this technique is used in medicine, in particular in dentistry. Also, printed models are in demand in art, jewelry, museum work and restoration. There are photopolymers that can be used to print molded models. The model printed on a 3D printer, in this case, is poured with molding sand and placed in an oven for annealing at a temperature of 1000 degrees. As a result, the polymer burns out without leaving a trace, and the resulting form can be used for pouring metal under vacuum. As the metal cools, the mold breaks and the metal part is removed.
In our company you can order 3D printing using SLA technology. We have in our arsenal professional 3D printers using this technology and a wide range of photopolymer resins with various characteristics for 3D printing. We guarantee you high quality and prompt execution of the order. To order 3D printing using the laser stereolithography method, you need to provide us with a file in STL format.
Get the most out of high-precision and highly detailed stereolithographic 3D printing.

DIGITAL LIGHT PROCESSING PRINT TECHNOLOGY – + DLP

DLP 3D printing is one of the most accurate and fastest 3D printing methods. It is based on the technology that Larry Hornbeck invented for multimedia projectors. The peculiarity lies in the use of a special mirror matrix. Each individual pixel of this matrix is ​​a microscopic mirror.
DLP stands for Digital Light Processing, which means "Digital Light Processing". Thus, this technology is one of the varieties of photopolymer 3D printing and photopolymer resin is used as a consumable. This resin is irradiated with projected light from the LEDs and hardens. The technology is very similar to stereolithography. However, with SLA 3D printing, each layer is, as it were, drawn by laser beams. And in DLP technology, the layer is completely projected onto a photopolymer using the same matrix with micromirrors, that is, this method is more like stamping. Thus, while maintaining the highest accuracy of 3D printing, it was possible to significantly increase its speed. At the moment, the speed of DLP printing is several times higher than FDM, SLM and SLA printing. For this reason, the DLP 3D printing technique is one of the most promising.
The thickness of one layer when printing using DLP technology is 10-15 microns, which is basically similar to the indicators for SLA 3D printing technology. For comparison, the FDM method implies a minimum thickness of at least 50 microns.
Since DLP printers are the main competitors of SLA printing, their application is about the same. They can print products for dentistry, jewelry, complex designs and even souvenirs. The technology is also in demand in the research area.
Photopolymers used in 3D printing with this method are diverse, and you can choose a material with the desired characteristics. For example, there are materials that mimic the properties of ABS plastic, hard engineering plastics, and even rubber. However, it is important to know that in some cases, under the influence of light, photopolymer products can crack and become brittle. This technology implies the impossibility of using several materials at once. Color printing is also not possible. The properties of the model and its color will determine the initial characteristics of one photopolymer.
However, there is also a drawback to DLP technology - as in the case of SLA 3D printers, the cost of equipment is very high, as in principle the price of photopolymers. Not every, even a large company, can afford such a 3D printer.
But this does not mean at all that you will not be able to take advantage of the speed and advantages of DLP printing, because you have the opportunity to order 3D printing on such a 3D printer in our company. To do this, you just need to provide us with an STL file with the desired model. We guarantee you prompt execution of the order and high quality.
Take advantage of high-quality, fast and high-precision DLP printing.

PRINT TECHNOLOGY LED DISPLAY – + LED

One of the varieties of DLP 3D printing technology is LED 3D printing. That is, this method is based on the same digital light processing (as Digital Light Processing stands for). However, in devices for LED 3D printing, instead of a mirror chipped matrix, there is an LED display that immediately highlights a whole layer on the material, like a kind of light stamp. Using an LED display allows you to increase the speed of 3D printing. So it takes about 10-15 minutes to 3D print 2.5 cm along the Z-axis, and it's really fast. Although the print speed in any case will directly depend on the thickness of one layer.
As a consumable material, a photopolymer resin is used, which polymerizes under the action of ultraviolet light, that is, it changes its qualities, passing from a semi-liquid state to a solid state. There are many options for photopolymers, among which there are materials that, after the polymerization process, imitate the characteristics of solid, including engineering plastics. There are also those that are very similar to classic rubber after hardening, that is, they have the same strength and elasticity indicators. You can also choose biocompatible photopolymers. When choosing a material for printing, you should be guided by the technical characteristics and scope of a particular photopolymer.
Like any other photopolymer 3D printing, LED technology is characterized by the highest precision and detail. The thickness of one layer is only 10-15 microns. With its help, you can print thin-walled products, objects with complex geometry. Photopolymers practically do not shrink and do not change their geometry after hardening, and this is also an advantage, especially when it is necessary to print anatomically accurate models. The DLP LED 3D printing technology itself, although it provides for a layer-by-layer method for creating a model, still does not differ in pronounced layering of the finished model. The surface is almost perfectly smooth, requiring no additional processing.
If complex objects are printed, support must be used. They can be set in automatic or manual mode immediately before printing during the positioning of the model in the virtual working chamber. These supports are subsequently removed manually.
LED-technology implies the impossibility of using several materials at once. Color 3D printing is also not possible. The properties of the finished prototype and its color will determine the initial characteristics of the photopolymer used.
The scope of LED 3D printing does not differ in principle from the scope of DLP printing, since this technology is, in fact, its improvement. The technology is in demand in the production of hearing aids and earmolds, in dentistry and orthodontics, as well as in jewelry. Due to the high accuracy and detail of 3D objects printed using this technology, products will also be in demand in the field of research and engineering activities.
LED 3D printer is very expensive. However, this does not mean that its benefits are not available to you. You can order 3D printing using LED technology in our company. We offer you a large selection of photopolymer resins for printing and guarantee the high quality of models, in full compliance with the provided STL-file, and the prompt execution of the order.
Take full advantage of LED technology with our help.

POLYJET PRINT TECHNOLOGY – + PJ

PolyJet is a revolutionary 3D printing technology that is a powerful tool for high performance additive manufacturing. The technique was invented and patented by Stratasys. The operation of a PolyJet 3D printer is very similar to a conventional, well-known inkjet printer, but printing is carried out not on paper and not with simple ink, but on a special substrate in the chamber, and an acrylic-based liquid photopolymer acts as a material.
3D printer supporting PolyJet technology is equipped with a special print head with nozzles. There can be several printheads, which allows you to print faster and even prototyping several objects at once. The printing process is carried out by dosed deposition of a photopolymer. One layer of 16 microns is sprayed at a time. Then this layer is exposed to an ultraviolet lamp and the photopolymer turns into a hard plastic. After that, the working platform with the substrate is lowered, and the algorithm is repeated again. When printing complex geometric shapes, a support material is used. For this technology, a special gel-like material has been created, which is easily removed with plain water or hands.
A key feature of PolyJet 3D printing technology is the ability to use multiple materials in one print run. At the same time, there are models of 3D printers that can mix photopolymers in various proportions, obtaining a variety of composite materials with certain characteristics. Also, this technology is characterized by the possibility of complex color reproduction. That is, it is possible to use color printing, the palette of which includes about 1000 colors and shades. In fact, it is the only additive manufacturing technology that supports these capabilities.
Other advantages of the method include: high printing speed, high accuracy and detail, perfect surface and generally excellent quality of printed objects. In addition, a wide range of materials allows you to create objects of almost any kind. More than 100 different photopolymer resins can be used as a base, mixing of which allows obtaining materials from transparent to completely opaque, from hard to elastic and rubbery. This is truly a new standard for realism in the most complex prints. PolyJet technology allows you to achieve perfect surface smoothness and imitate any even the most subtle texture. The camera of the PolyJet 3D printer is quite large, but if you need to print a large object, then it can be broken into parts, which are then simply glued together.
The only disadvantage of the technology is its high cost. The equipment is very expensive, and photopolymer resins are not cheap. But this does not mean that you cannot use this technology, because you have the opportunity to order 3D printing using PolyJet technology in our company. In a short time, we will implement your project on our own 3D printer. All you need is to provide us with the STL file.
PolyJet 3D printing technology is truly limitless.

COLOR JET PRINTING TECHNOLOGY – + CJP

Color inkjet 3D printing - CJP (ColorJet Printing) technology - a patented technique invented by 3D Systems. It consists in layer-by-layer gluing and coloring of the powder gypsum composite. 3D printing of this type is based on a technique called 3DP, which is its improvement.
3D printing by this method is based on the use of two materials: base and binder. To create the base layer, a consumable of the main type is used. It consists of gypsum mixed with a polymer. And the binder is used for gluing and staining the layers.
ColorJet Printing 3D printer has two cameras. A gypsum composite is poured into one of them, and the second chamber is used to remove excess material. The model is "grown" in layers. A special roller distributes a thin layer of material on the working platform. The print head applies the adhesive and colors the main consumable particles. All this is carried out in accordance with the loaded mathematical 3D model. The working surface is lowered by the amount of the layer (0.1016 mm), and the roller again applies a layer of gypsum composite powder, and so on until the model is printed to the end.
ColorJet Printing technology has a relatively low cost of printed models. Its advantage is the absence of the need for supports, since the non-glued material will act as supporting structures. In addition, the material that was not used during printing can be reused. It turns out that this method of additive manufacturing is waste-free.
CJP technology is the only one that uses the CMYK printing color palette. This palette includes 390 thousand colors and shades. The material is dyed during the gluing of the layer, resulting in details with excellent color reproduction.
The accuracy of building a model by this method is very high, the minimum printed element has dimensions of 0.1-0.4 mm. The thickness of the walls of the prototype, which will not collapse under their own weight, is 0.102-0.089 mm.
Models printed using ColorJet Printing technology have a typical gypsum rough surface, characterized by a high degree of hygroscopicity. The strength of the models is average. However, finished models are easy to sand, paint and glue. To improve the characteristics of the model and protect them from moisture, you can cover the surface with varnishes, waxes, resins, as well as all kinds of fixatives.
The technology can be used for 3D printing of architectural models, product presentations, souvenirs, miniatures, etc. Despite the fact that the products are of low strength, they allow you to visually evaluate the prototypes.
CJP 3D printer has impressive dimensions and is quite expensive, despite the fact that the cost of printed prototypes is low, not everyone can afford such pleasure. In our company, you can order 3D printing using ColorJet Printing technology. We guarantee you prompt execution of the order and full compliance of the prototype with the modeled object. All you need is to provide us with an STL file with a 3D model.
Take advantage of CJP 3D printing technology with our help and appreciate all its advantages in practice.

SELECTIVE LASER SINTERING PRINT TECHNOLOGY – + SLS

Selective, that is, selective, laser sintering is a 3D printing technology that was created back in 1979. However, for a long time it was not available to the market until DTM was created in 1996. In 2001, 3D Systems bought this company, and in 2014 the patent expired, and now this technology is available to a wide range of consumers.
The SLS 3D printing technique consists in the fact that the material is heated by a laser beam until the particles are sintered, that is, not completely. As a result, the model turns out not to be solid, but as if “sintered” from individual tiny particles. If we consider the structure under magnification, then individual particles of the material will be visible, as if glued to each other.
The operation of a 3D printer that prints using SLS technology is as follows. Powder material is poured into the chamber. A 3D model in STL format is loaded into the software. The working platform is exposed and a thin layer of material (thickness about 120 microns) is applied to it, leveled with a roller. The laser sinters the powder particles according to the loaded model. After the layer is completed, the platform is lowered and a new layer of material is applied. The procedure will be repeated until the very last layer is completed.
Since there is unused material in the working chamber, the need for supports simply disappears, because complex and overhanging parts will be supported by unused material. This allows you to get models of any, even very complex geometry.
Powder polymers, metals and their alloys, ceramics, glass, composite materials can be used as consumables. But in any case, the material must be in powder form. Due to the fact that the power of laser radiation can be adjusted, the degree of melting of the material can change, and, accordingly, the strength and uniformity of the structure of the resulting model. Currently, the most popular material for 3D printing using SLS technology is polyamide. This is a versatile powder material that can be used in almost any field. If powdered metal is used for printing, it is preheated to make printing faster and easier.
As a result of 3D printing, models are obtained with a surface that requires processing, in particular grinding. Models made of polyamide are sensitive to moisture, so they must be coated with a protective compound, such as moisture-resistant paint, if outdoor use is planned.
Selective laser sintering shows excellent results in small batch production as well as for making master models. This 3D printing technology is in demand in the aerospace industry, in manufacturing, etc.
The disadvantages of SLS 3D printing technology are the high cost of equipment. In addition, the powder material is potentially harmful to the human body, so a separate room with air conditioning and an air filter is equipped for such 3D printers. All this imposes difficulties for additive manufacturing using this technique. But this does not mean that you cannot take advantage of the possibilities of selective laser sintering technology, because our company provides professional 3D printing services on such equipment. You can order 3D printing using SLS technology from us. All you need is to provide us with a file with a 3D model in STL format. We guarantee you high quality printing in full accordance with the provided 3D model.

SELECTIVE LASER MELTING PRINT TECHNOLOGY – + SLM

Selective (selective) laser melting - SLM is a 3D printing method from a mathematical CAD model, which is used to create 3D objects by melting metal powders. For this, high-power lasers are used.
Using this technology, it is possible to create precise metal parts that will later be used in various units and assemblies, including non-separable structures that change their geometry during use. This type of printing is becoming more and more widespread, because the parts created by this method are in many respects superior in their mechanical and physical characteristics to products produced by traditional methods.
The advantages of 3D printing using SLM technology are: the ability to solve the most complex production problems, including in the aerospace industry, where parts and assemblies have a hard load and serious requirements are imposed. Also, SLM printing is used in experimental and scientific and technical activities, where it is possible to significantly reduce the R&D cycle, because the most complex mechanisms and products can be created without serious equipment.
The technology also allows you to print objects with internal cavities, which can significantly reduce the weight of products.
The essence of the method lies in the layer-by-layer application of metal powder on a special heated platform and its subsequent processing with a high-power laser, in accordance with the CAD model. The working chamber of the 3D printer, where the melting process itself takes place, is filled with argon or nitrogen. The choice of gas will depend on which consumable is selected for printing. Inert gas will be mainly consumed in preparation for printing, when the chamber is purged, because it is necessary to achieve conditions so that the percentage of oxygen in the chamber is no more than 0.15%. This is a necessary condition in order to avoid the oxidation of metals. Consumables can be: powdered metals and alloys. It can be tool or stainless steel, titanium and its alloys, aluminum, platinum, gold, as well as cobalt-chromium alloys.
The model is fused layer by layer. After the printing of the prototype is completed, it is removed from the chamber with the working platform and separated from it mechanically. In the future, it may require processing, because the surface of the product may not be ideal. However, the product will be very strong and uniform in structure, similar to cast.
One of the advantages of the technology is its economy and non-waste. After all, unsintered material can be reused. The thickness of one layer is 20-100 microns. Thus, SLM 3D printing is a very precise and highly detailed additive manufacturing technique.
The cost of 3D printers using this method is very high. And in general, their operation is by no means a simple matter, requiring special conditions. But you have a great opportunity to use 3D printing using selective laser fusion technology with the help of our company. All you need is just to order 3D printing using this technique in our company. To do this, you need to provide us with an STL file with a CAD model for printing.
Take advantage of the innovative method of creating high-precision metal products - SLM printing.

ELECTRON BEAM MELTING PRINT TECHNOLOGY – + EBM

One of the most reliable metal 3D printing methods is EBM printing or electron beam melting. This is an additive manufacturing technology that is used to create high-strength, comparable to cast, metal products. Pure (without impurities) metal powder acts as a consumable. Printing is carried out in a vacuum chamber, which minimizes the oxidation of the material, such as pure titanium.
Electron beam melting is very similar to SLS 3D printing technology, i.e. selective laser melting. However, it does not use powerful lasers, but electron emitters, which serve as sources of powerful energy used to melt metal. So-called electron guns fire high power electron beams that fuse metal powder. The method is similar to other 3D printing methods - the layering of consumables. A layer of metal powder is applied, and electron beams, following the contour of the model, fuse the material. Then the algorithm is repeated again until all layers are created and a finished three-dimensional object is obtained in accordance with the mathematical 3D model.
As a result of such 3D printing, a high-density metal model is obtained, and the porosity of the structure is absent. This means that additional processing by the method of firing for a strong fusion of the material in the model is not required. And the model itself will have high strength characteristics initially, that is, it will not differ in any way from cast products.
Electron beam melting is printed at high background temperatures of 700-1000 degrees Celsius. This avoids a strong temperature difference between the already cooled printed layer and the fresh hot layer. Therefore, printed parts will not suffer from residual mechanical stress. This is how the highest possible strength of EBM-printed products is achieved.
This 3D printing technology is used to create high-precision titanium prostheses and implants, such as hip and knee implants, skull parts, etc. Titanium combines strength and biocompatibility.
EBM is also used in the aerospace industry. With the help of this technology, load-bearing structural elements of various devices (aircraft, rockets), as well as parts of their engines, are printed.

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