9 Types of 3D Printer Rapid Prototyping

by Albert T.

There are various ways to achieve similar goals for new technology development. Manufacturers use different technologies to make different parts. From casting to mold filling, until handmade manufacture. For 3D Printer Rapid Prototyping, there are various ways to create prototypes. All these methods are used based on the complexity of the design, the material used for the design, the purpose of the design, and the size of the design.

1) Stereolithography (SLA)

SLA is a fast prototyping process. People who use this technology place importance on accuracy and accuracy. You can generate objects from 3D CAD data (computer generated files) in just a few hours. This is a general 3D printing process and provides detailed details and accuracy. Machines using this technology produce unique models, samples, prototypes, and various production parts. This does this by converting the liquid photopolymer to three layers of solid at a time. Plastics are first heated to a semi-liquid state and then cured by contact. The printer uses ultraviolet lasers controlled by X and Y scanning mirrors to construct each of these layers. Just prior to each printing cycle, the squeegee moves across the surface so that each thin layer of resin uniformly spreads throughout the object. The print cycle continues in this way and builds the 3D object from bottom to top.

When this is done, the 3D object will be deleted from the printer and quietly removed from the platform. 3D parts usually have a chemical bath to remove excess resin. It is also common to place the cured product in an ultraviolet oven. This will make the final product stronger and more stable. Depending on the part, hand sanding and professional painting are possible. SLA printing is an economic choice for various industries. These include automotive, medical, aerospace, entertainment, and even consumer products.



2) Selective Laser Sintering (SLS)

Dr. Carl Deckard, a US businessman, inventor, teacher, developed SLS technology and obtained a patent in the mid-1980s. This is a 3D printing technology that uses high power CO 2 lasers to melt particles. The laser sintered body powders the metal material (although other materials such as white nylon powder, ceramic, glass can also be used). That’s how it works:

The construction platform or bed slows down slowly for each successive laser scan. This is the process of repeating one layer at a time until the height of the object is reached. During the build process to surround and protect the model, support from other powders is not supported. That is, 3D objects do not require any other support structures during construction. Manually remove non-sintered powder after printing. Highly durable high precision parts can be produced, and a wide range of materials can be used. It is a perfect technology for fully functional, end use parts and prototypes. SLS is very similar to SLA technology in terms of speed and quality. SLS uses powdered substances, but SLA uses liquid resin, but there are major differences from materials. It is this diverse document that makes SLA technology very popular for printing customized objects.



3) Digital Light Processing (DLP) Technology

DLP is the oldest 3D printing technology created by a person named Larry Hornbeck in 1987. Similar to SLA (see above), it works with photopolymer, so it is similar to SLA. The liquid plastic resin used in the printer is placed in a translucent plastic container. However, there are two major differences in light sources. SLA uses ultraviolet light, but DLP uses a more traditional light source, usually an arc lamp. This process brings pretty impressive printing speed. When there is much light, the resin cures faster (we are talking for a few seconds). Compared to SLA 3D printing, DLP shortens the printing time of most parts. The easiest reason is to publish the whole layer at once. For SLA printing, the laser needs to pull out each of these layers and takes time.

Another advantage of DLP printing technology is robustness, and you can create high resolution models each time. It is economical to use inexpensive materials even for complex and detailed objects. This not only reduces waste, it keeps printing costs low.



4) Selective Laser Melting (SLM) Technology

SLM debuted in 1995. It was part of a  Fraunhofer Institute ILT‘s research project. Similar to the SLA (see above), the SLM also uses high power laser beams to create 3D parts. During the printing process, the laser beam melts and melts the various metal powders together. The easiest way to verify this is to interrupt such a basic process:

Powder material + heat + precision + layered structure = An ideal3D object.

When the laser beam strikes a thin layer of material, the laser beam selectively couples or welds the particles. When one print cycle is completed, the printer adds a new material layer to the previous material layer. The object then falls by the exact thickness of the individual layers. When printing is completed, someone manually removes unused powder by hand. The main difference between SLM and SLS is that the SLM only partially melts and the SLM melts the powder completely. In general, the end product of SLM tends to be stronger because there is little or no voids.

A common application of SLM printing is 3D parts with complex structures, shapes and thin walls. In the aviation industry, we use SLM 3D printing as part of a forward-looking project. These usually focus on lightweight components that are accurate and durable. But it is an expensive technology. Therefore, it is neither practical nor general for home users. Today, SLM is used today in aerospace and medical orthopedic surgery. People who invest in SLM 3D printers include researchers, universities, metal powder developers. In particular, others may want to explore the full scope and future possibilities of metal additive manufacturing.


5) Electronic Beam Melting (EBM)

EBM is another type of additive manufacturing for metal parts. This was originally created by Arcam AB Corporation. At the beginning of the century. Like SLM, this 3D printing technology is a blending technique of powder bed. Although SLM uses high power laser light as energy source, EBM uses electron beams, not the main difference between these two methods. All these other processes are quite similar.

The material used for EBM is a metal powder that melts to form a 3D component layer for each layer using a computer that controls the electron beam in high vacuum. In contrast to SLS, EBM is applied to complete melting of metal powders. This process is usually carried out at an elevated temperature of 1000 ° C.

Evaluation of SLM for the entire process of EBM is very slow, costly, and accessibility to materials is limited. Therefore, this technology is still used in many manufacturing processes, but it is not so popular. Currently the most common materials that can be used for EBM are probably commercially pure titanium, Inconel 718 and Inconel 625. The use of EBM mainly focuses on medical implants and aerospace industry.

6) Laminated Object Manufacturing (LOM)

Laminated Object manufacturing (LOM) is the primary device through the system faster California, according Helisys Corporation.

Over the course of the process LOM layers of paper fastened to contain metal or plastic laminate together that uses pressure and heat, the computer-controlled laser or cut with a knife. 3D printing process includes the steps of feeding the public, and drilling.



LOM is a multi-step process. The first one is convertible. No computer file format, which is generally STL or 3DS. Continuous use of the LOM plan inungature gives you a glue roll that will preside over all substrate heating. The roller heats the dough sheet to a substrate adhesive, which dissolves. Laser or rather the part of the iron, and fills those present with traces of the size of man. Even with the help of lasers, it is easy to remove the roof, which is connected to excessive printing material.

After the shift, the running platform becomes below about 1/16 of the thumb. A new sheet is pulled out of the article and then traced with a heated roller. When fully printed, repeats repeated section in 3D. He can forcefully stay out of the matter so as not to destroy it, to use it to paint on the side of those who were sealed, and also to be upholstered. When the paper material is like a tree body when printing. In other words, it needs to be protected from moisture. To pay it, skin color and paint can make sense.

In most cases, LOM is not the most widely used method of 3D printing, it is probably the cheapest and fastest way. Also, because it is expensive, non-recyclable printing is a low price. LOM relatively large objects to be printed. And that there is nothing, it is necessary that the printer of the reaction needs an important role.

Currently, Cubic Technologies requires an exceptional Helicys Corporation, an important LOM device such as a printer. Today there are many companies in Lom, for example technology. It is worth mentioning, however, a moment in the Irish companyMcCrumm Technologies Ltd. In our experience for sale 3D LOM. Widely used in their products are artists, architects and product development project leaders to produce mainstream literature.

Technologies used bed from the printer for home and expensive enough, MakerBot Replicator 3D Cube or system devices provided. However, the mcorum Technologes printers worked with Staples, the developer of office supplies, which is not popular in the near future. The offer printing services including printing in stores predefined number of times that there are many useful mobile phone bags, pens and other trinkets. There will also be objects that can be obtained according to the customer’s own design.

The most widely used 3D printers make use of this article is just the following page, you can go their way: and comment on those who have something to add. We will enrich significantly more information.

7) Multi Jet Modeling (MJM)

Another process produced by 3D Systems, this really is something of the hybrid 3D computer printer. Just like SLA, a thermosetting polymer can be used. But rather of getting the finished part leave a shower of liquid material, a range of inkjet nozzles moves horizontally over the platform depositing a skinny film for that 2D mix-sectional layer. Polymerization rapidly solidifies the plastic for the reason that layer, then your platform descends by one thickness and also the process repeated.

Another process developed by 3D Systems is like a hybrid 3D printing device. As with SLA, thermosetting polymers are used. However, instead of exiting the finished part from the bath of liquid material, the array of ink jet nozzles moves horizontally across the platform depositing the film for the layer of 2D cross section. Polymerization rapidly solidifies the plastic of the layer, then lower the platform by one thickness and repeat the process.

8) Fused Deposition Modeling (FDM)

This process was Developed by S. Scott Crump in the late 1980s. It’s bought then by Stratasys. Since its patent expired, many players have created a vibrant DIY community to develop new uses of this type of 3D printer. As a result, the cost has been greatly reduced.

This is the type of 3D printer the most common people are accustomed to now. Spools (hyperlinks) or wires of thermoformed plastics feed the feed to the discharge nozzle. This nozzle places a continuous layer of material on the base platform, but unlike the other techniques described above, it moves freely in both the vertical and horizontal directions.



The advantage here is that machines are smaller, cheaper, many different types of thermoformed plastics can be used, and cost can be reduced. Multiple types of materials can be printed during a single build, improving versatility. The types and numbers of materials that can be printed in this way are constantly increasing and include biodegradable starch-based plastics for environmentally sensitive applications and even cement-like substrates of large-scale construction projects I will.

This technology is still too late for mass production, but it remains ideal for rapid prototyping and rapid production, while remaining cost effective. The presence of the extrusion nozzle is a physical obstacle that limits the resulting detail but may be ideal if a simple shape of moderate accuracy is sufficient. Recently, we have used this type of printer to manufacture parts on the International Space Station [hyperlink] and tested the effect of zero gravity on this process and its resulting parts.

9) Binder Jetting (BJ)

This type of 3D printing was discovered at MIT. In 3D printing technology is used in many words. There is a powder bed printing “,” 3D inkjet printing “,” drop-in-printing powder ‘or – probably the most common – as “Well Jetting”.

T jetting additive to the page. This type of 3D printer uses two materials, the powder (often gypsum) and a bonding agent material cut cut cut. Acting deals with adhesive layers between powder. Usually wrapped in liquid form from the extruded Printhead – just think of a regular 2D inkjet printers. When, however, it is finished, the bed is, and are built for the most part He hath put down the plate.

You can use this 3D technology printing of sand, the land of the material of the metal or plastic.

This type of 3D is a huge advantage. You can print a the basis of the full color, and with the colors of that projection of a plan by adding a reference to word (Yellow Cartus Toner, about, yellow, black and white). This method is usually preferred to have given it to them as in the 3D selfie. 3D printing is a drawback is its structural integrity. And it will not be stern and harsh; This type of 3D technology and culture printer with a resolution at a high level – but there are some exceptions.

I am, I am not concerned about the development of the process in the printing, and a race And the 3D technology. In 2016, Hewlett-Packard introduced: “Let fusion” (MJF), which approaches the goal of strengthening Titus Jetting in the next Level-

The first 3D material layer to form a car equipped with it. Region thermal inkjet equipment will be transferred left to right on the active agent text. Finally, energy is applied to catalyze the fusing of the counting agent remains in the agent and powder imbued function.

Potential short-run applications that this type of 3D printer for rapid prototyping business and needs, medical and aerospace industries. MJF newer agents are reduced on the back of a document to be confirmed by the full These properties with respect to color conductivity, thermal Reactivity it.

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