Have you imagined? What can a 3D printer become in the next 30-50 years? In fact, many people in the industry believe that the final 3D printer will become a replica machine similar to the sci-fi movie Star Trek. Yes, this sounds really sci-fi, but in fact, we are really moving in this direction. The first step towards this ultimate goal, or the holy grail of 3D printers, is to break through the limitations of many machines that can only print a single material. Of course, the typical FDM desktop 3D printers can now use a variety of types and colors of wire for printing, thanks to the use of multiple extruders, the quality of printing also has a lot of room for improvement; and more complex and expensive machines It is also possible to print resins with different properties, but such machines are millions of dollars, which is not something that ordinary people or even ordinary companies can care about.
You may ask, when will there be 3D printers that can use more material 3D printing on one object at the same time, the output quality is satisfactory, and the price is also enough for ordinary people to get? This is what the Massachusetts Institute of Technology (MIT) Computer Science and Artificial Intelligence Laboratory (CSAIL) is trying to do, and they have an incredible start.
The 3D printer, which the researchers call MultiFab, is a visually assisted multi-material 3D printer that prints a single object using 10 different materials. There are currently 15 materials available for this machine, including rigid materials (RIG), elastomeric materials (ELA), high refractive index materials (HR), low refractive index materials (LR), and support materials (SPT) – and this material The scope of the library will continue to expand as the research progresses.
“We offer a lot of printed materials, but the development space for reliable printing of materials is almost limitless.†The researchers recently published an article entitled “MultiFab: A Multi-Material 3D Printer with Visual Aided Platform ( MultiFab: A Machine Vision Assisted Platform for Multi-material 3D Printing), "For example, we can explore the effects of different nanoparticles on the matrix material or develop biocompatible print materials."
According to the researchers, the MultiFab 3D printer not only has a wide range of printable materials, but its print quality is also exceptionally fine. The print layer is only 13 microns high, and it also integrates a 3D scanning system. So what is the cost of this 3D printer? Researchers estimate that its manufacturing cost is only about $7,000!
The MultiFab works by utilizing multiple piezo inkjet printheads, which are components on a 2D printer, but are particularly well suited for jetting photographic materials onto a build platform or object being printed in 3D printing. MultiFab then cures it with UV light. The overall design of the 3D printer is based on a modular architecture that allows for quick and easy replacement of operating components.
The MultiFab integrated 3D scanner is not only used to copy solid objects, create 3D models, but is also an integral part of the system feedback loop. The scanner sends data to the computer in real time to ensure that the item being manufactured is working correctly and that any errors that occur during the printing process are adjusted, which is what the machine calls visual aids.
According to China's 3D printing network, researchers have used the MultiFab 3D printer to print a large number of objects, each consisting of a variety of materials, including an integrated lens LED, fiber bundle, complex metamaterial (meta-material) ), a privacy screen on a smartphone, a microlens array, and so on.
(Editor)
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