High Tech

All about the 3D printer: Complete 2021 comparison!

The 3 best 3D printers in 2021

There is a sense of enigma and uncertainty around the concept of 3D printing. Thanks to this 3D printing technology, it is possible to create a unique product of its kind only from spools of thread whose materials are very variable. If you're having trouble understanding this principle, here's everything you need to know about 3D printers and 3D printing in general.

Comgrow Creality Ender 3: The best 3D printer for beginners!

If you want to start 3D printing and this is your first experience, then it will not be necessary for you to invest several thousands of euros in a high-end model. Indeed, to get your hands on, the Comgrow Creality Ender 3 3D printer will be the ideal equipment in many ways. Simple to install and use and particularly reliable, it will allow you to format your most beautiful creations with disconcerting ease. For example, you can consider creating your own protective cases for iPhone 8 or even waterproof cases for mobile phones.

Besides being economical, the 3D printer Comgrow Creality Ender 3 stands out from its competitors in that it comes with 3D creation software, which will save you from having to buy an additional one, which will then save you several hundred dollars. 'euros. Concretely, if you are looking for the best 3D printer for beginners, there is no doubt that this equipment of excellent general quality will fully satisfy you.

What is 3D printing? How does it work?

3D printing is the automated process of constructing a three-dimensional object by adding material rather than removing it (as during machining). The process, also called additive manufacturing, was introduced in the late 1980s. It was first used commercially as a rapid prototyping method in the aerospace and automotive industries. Charles Hull, who then founded 3D Systems, obtained a patent for a stereolithography system.

In 1988, 3D Systems sold its first industrial 3D printer using SLA technology. In the early 90s, many industrial 3D printing companies were established. These have all developed newly invented processes. Only three of the largest companies of the era when the only application of 3D printing was industrial were still on the market. The most important are 3D Systems, EOS and Stratasys. It wasn't until 2009 that 3D printing became commercially available to the masses. The open source project RepRap opened the door to affordable desktop 3D printers using FDM (Fused Deposition Modeling) technology.

Then, and in the years since follow-up 2009, new companies and other companies began to innovate. They created and improved the consumer desktop 3D printer, to the point where we now have high quality desktop 3D printers. To create a 3D printed object, you use an “additive process”.The three-dimensional object is created by depositing successive layers of material until the object is complete.If you wish, for example, you will be able to serve a delicious coffee obtained from a quality Italian coffee maker in a cup that has been modeled and printed by your 3D printer.

Comparative table of the 10 best 3D printers of the moment

What is 3D printing for?

Whether you need a frame for your remote control drone project , a simple door shutter or any other intermediate element, you can 3D print it.3D printing makes your life easier with simple ideas and tips.As of November 2016, there would be around 2 million 3D print files in 3D repositories for download.From an industrial perspective, 3D printing has enabled industries from healthcare to automotive to do things never possible before.So, 3D printing has allowed many to bring products to market much faster.

One of the most spectacular areas of 3D printing is the medical field.Custom prostheses and 3D printed fabrics are increasingly popular in laboratories.But 3D printing is also strong when it comes to making small batches of products.One example: the ability of the aerospace industries to 3D print small jet engine components.These have a complex internal piping, thus improving fuel consumption.This would never have been possible with the traditional CNC milling method.

What are the advantages of 3D printing?

Like most emerging technologies, 3D printing offers advantages in many areas. These include improvements in the financial, logistics, health, creative and environmental areas. On the one hand, technology allows for endless customization when it comes to design and materials. A notable example of this advantage is the healthcare sector. Complex prostheses can be manufactured precisely to meet individual needs at a much lower cost.

In the aerospace industry, complex parts that take a lot time to assemble can now be 3D printed at one time. This speeds up the assembly line and reduces the cost of the finished product. In addition, mass production in larger numbers is made possible. 3D printing allows designers to quickly prototype, saving time in the design process. There are also more and more spare parts made from 3D printers. For example, if you dropped your cordless drill driver and the shell is broken, you may be able to print the missing item to repair your device yourself. This allows new or improved products to reach the market much sooner than with conventional means. 3D printers are portable. This allows end products or components to be 3D printed where and when they are needed.

This thus reduces or eliminates inventory requirements. Satellites, for example, will most likely be 3D printed in space in the future. Since 3D printing uses the concept of adding material rather than subtraction, the process leaves little to no waste. Although the materials used in conventional manufacturing methods are recyclable, the material recycling process costs money and can be saved through 3D printing.

What are the limitations of 3D printing?

Although it is already deeply implemented in the world of prototyping, 3D printing is still to be done in a few years. This advance would allow 3D printing to extend beyond prototyping, with the exception of certain components already manufactured by 3D printers. The main aspect that prevents this from happening sooner is the relatively long time it takes to 3D print a product. But this product could just as easily be made using traditional methods.

3D printing is also limited by the size of the 3D printer. Although there are very large 3D printing units with cement, high quality parts are limited to smaller machines. These types of machines can also be very expensive, depending on what they are designed for. Another limitation is the fact that most 3D printers can only print on one material at a time. Multi-material 3D printers exist, but are not yet widespread.

What types of 3D printing technologies exist today?

3D printers use one of the following methods to create an object layer by layer:

Fused Deposition 3D Printing (MDF) technology

This is the most common technology used in desktop 3D printers. The thermoplastic material is heated and extruded through a nozzle. The nozzle deposits the molten material layer by layer onto a build platform. Each layer sticks to the one below.

Stereolithography 3D printing technology

The build platform is lowered into a bath filled with a special liquid photopolymer resin. The resin is light sensitive and becomes solid when exposed to a laser beam. Each section of the 3D model is drawn over the layer of hardened resin that preceded it. This is repeated layer by layer until the 3D object is complete.

Selective Laser Sintering (SLS) 3D Printing Technology

Discover the best 3D printers on Amazon.com !

This process involves a laser beam fusing powdered material. The first layer of powder material is evenly laminated to the construction platform, after which the layer of the 3D model is fused by a laser. Then the build platform is lowered one layer width and the next powder layer is rolled into position.

This process is repeated until 'until the 3D object is finished. Since the object is surrounded by (unused) materials for the duration of construction, support structures are not required, unlike the FDM process. Many different materials can be used with this technology, from plastics to metals.

Selective laser fusion 3D printing technology

This works on the same principle as the previous technology but uses a higher intensity laser and only metallic powder. In this process, the tiny particles of metal are actually melted together. They form a solid piece of metal, as if they were machined from a solid block.

Binder jet 3D printing technology

Binder Jetting also uses a powder bed as the material source. But instead of a laser, the metal is first “glued” using an adhesive binder. After which the object is heat treated in an oven to fix or fuse the material. To get color prints, you can add pigments to the binders.

Is there a difference between 3D printing and additive manufacturing?

The short answer is no. The term “3D printing” comes from the use of inkjet printheads. These deposit either layers of UV-curable photopolymer resin or a binder on a powder layer in a powder bed process.

However, the term now universally encompasses all additive manufacturing technologies. “Additive manufacturing” is the more technical method of referring to the automated process of creating a 3D object from scratch.

3D Markets: What is it? What are they for?

If you don't have the skills to design your own 3D models, you can still print some really nice objects. 3D markets such as Pinshape and CGTrader contain 3D model files that you can download for a small fee or for free.

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