Resin for lcd 3d printer

High resistance to breakage and wear make this resin ideal for making rigid cotter pins or retainers.

Pros:

Cons:

• High price

Ideal for: durable dental instruments, fracture and wear resistant medical parts, rigid cotter pins, retainers

Class 1 biocompatibility rules apply to materials that are allowed to be used for:

• non-invasive devices that come into contact with intact skin

• devices for temporary use or short-term use in the mouth or ear canal or in the nasal cavity

• reusable surgical instruments

Class 2a biocompatibility rules apply to materials that are allowed to be used for:

• devices that come into contact with bodily fluids or open wounds

• devices used to introduce substances into or remove substances from the human body

• invasive short-term devices such as invasive surgical items

• long-term implantable devices placed in the teeth

Photopolymer resins in SLA 3D printing for jewelers

This material allows you to print models with fine details and a smooth surface without leaving ash or residue after burning.

Cast resin allows you to get the finished product directly from design to precision casting with just one 3D printed part. It is suitable for making jewelry and other small and complex components.

Pros:

Cons:

Ideal for: investment casting, jewelry making

SLA/DLP 3D printer catalog

Photopolymers from FormLabs

Post-Processing SLA/DLP 3D Printing Article

Well, that's all we have! We hope this article was useful for you!

You can order Formlabs SLA 3D printers or ask your questions and find out the status of your order, you can

• Email: [email protected]
• By phone: 8(800)775-86-69
• Or on our website: http://3dtool.ru
• 
  

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DLP and LCD 3D Printers: What's the Difference?・Cults

Resin 3D printing is a popular technology in the 3D printing industry, and every market has a number of these 3D printers in its product range. It finds wide application in various industries and its development is a priority to improve print quality, financial viability and access to a wider user group.

DLP and LCD are two of the most prominent technologies in resin 3D printing. Both work on a similar principle and are comparable in many ways. However, there are also some obvious differences that users should be aware of before purchasing a resin 3D printer.

In this blog we will focus on DLP and LCD 3D printers. We will discuss the main technologies used, their individual advantages and disadvantages, and how they suit your specific 3D printing needs.

Resin 3D printing belongs to the broad category of vat light curing, which is considered one of the main types of 3D printing technologies. The concept is based on the ability of light-sensitive resins in the liquid phase to solidify under the influence of light radiation.

Resin 3D printing uses this ability to create 3D objects from thinned resins that are selectively exposed to light to cure the desired areas of the resin. Only those parts of the resin that have solidified under the influence of the light source become part of the 3D printing, while the rest remain liquid.

A common configuration for resin 3D printing includes a tray, or reservoir (in technical terms), that is filled with liquid resin, a light source, and a mechanism for directing the light source to a specific point in the resin to be cured.

In addition, there is a build platform that can move up and down inside the tank with amazing precision. For each new layer, the building platform is lowered to the bottom of the tank, leaving only a tiny gap (0.5 mm in most cases) in which the layer adjacent to the platform is built. For subsequent layers, the platform continues to rise slightly each time, while each new layer fits into the resulting gap and is bonded to the top layer. The 3D printed resin model is built upside down as light passes through the bottom of the tank.

That's what resin 3D printing is all about! Now let's move on to two interesting technologies that we want to talk about.

Digital Light Processing, or DLP, uses a digital light projector as a light source to cure resins. This light source is characteristic of this technology and is the main difference between it and LCD displays.
The projector projects light onto a unique device called a DMD (Digital Micromirror Device), which consists of a very large number of very small mirrors, each of which is capable of deflecting light from the projector in different directions. For each layer, these mirrors are arranged in a specific orientation that reflects the digital light beam from the projector onto the tank in the exact shape of the printed layer/layer.

Mirrors cannot change the nature of the light source in any way, they only direct it. This means that the number of pixels produced on the build platform is the same as the number of pixels on the projector. So if the layer is slightly smaller than the projector's beam, the image is actually slightly sharper and more accurate than what is being projected! However, this also has a downside. The opposite happens if the printed piece is larger than the projector screen. In this case, the resolution is reduced, and there is also a risk of distortion at the edges, since the light is refracted too far (like an elephant's foot when printing with filament).

Modern, more expensive DLP 3D printers use advanced technology to minimize this distortion problem and maintain layer quality despite being enlarged. As a result, these DLP 3D printers can safely be considered professional products.

DLP technology has been around for a long time due to the age of the light source: projectors are century old devices widely used in movie theaters. Therefore, the technology is tried and tested.

LCD 3D printing, also known as MSLA 3D printing, is a relatively new technology compared to DLP technology. As mentioned above, it uses a non-DLP light source: UV LEDs that shine through the LCD screen.
Although LCD also creates full layers at the same time as DLP 3D printers, the quality of the layers depends on the screen resolution. The higher the pixel density of the LCD screen, the better the print quality. In addition, there are no problems with distortion, as the print created on the LCD is transferred to the resin unchanged without deviation. Since the original projection size on the LCD screen does not change, the print area is limited by the screen area, so larger prints require a larger screen.

Cost is a tricky issue when it comes to LCD 3D printers. The material is cheap because the LCD screens used in these devices are practically the same as in smartphones. The problem, however, is that they need to be replaced frequently to maintain quality. The idea that LCD 3D printers are cheap is true, but you need to be aware of the running costs involved.

DLP and LCD are similar in many ways: technology, print quality, speed, applications, etc. Are they the same? But are they the same? No.

There are a few things to consider before choosing one or the other. First, let's talk about print quality. As mentioned above, it is comparable for both 3D printers. The finish is smooth, the layers are indistinguishable. However, DLP has an edge in this regard. Cheaper options compare well with LCD printers, but if you consider mid-range DLP 3D printers (which support layer distortion and warp), the build quality is much more detailed and subtle.

In terms of cost, LCD is the cheapest option. Even if the screen has to be changed, the technology itself is so accessible and cheap that DLP is still more expensive. But this comes at the expense of quality, which must be known.

Compatibility with the resin material is another factor to consider. Most resins can be used with both DLP and LCD 3D printers, but some are only suitable for one or the other. It depends on the energy intensity of the light source. The LCD uses a low power light source, so resins that cure quickly are suitable. If any other resin is used, it will not cure properly and the structural integrity of the model will be compromised. Naturally, DLP is compatible with resins that take some time to cure due to the high density of the energy source.

In general, it all depends on the specific application. People who require professional-grade quality and who have a large budget should always choose DLP as it is better suited for detailed work. Consumers who are just starting out or have low-precision tasks on a budget should consider LCD 3D printers, which are also very good in many ways.

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