What is the 3D printing technologies?

3D printing is a process of making three dimensional solid object which is called as additive
manufacturing, it is an art that involves creating a physical object With the help of SD printers. This
process is very useful for the people who want to create their own products.

3D Technologies
There are many types of 3D printing technologies available in the market.

Fused Deposition Modeling (FDMS)
Sometimes called Fused Filament Fabrication (FFF) is a 3D printing technology that uses a process called Material ExtruSion. Material Extrusion devices are the most widely available and inexpensive of 3D printing technology in the world today. They can be made from any type of material, including plastic, metal or glass.
The process involves placing a piece of material on top of another piece, then attaching it to the desired of the product. In this way, the object is not only printed but also manufactured.

Vat Photopolymerization
A 3D printer based on the Vat Photopolymerization method has a container filled with photopolymer resin. The resin is hardened with a UV light source.

Digital Light Synthesis
The heart of the CLIP process is Digital Light Synthesis technology. In this technology, light from a custom high performance LED light engine projects a sequence of UV images exposing a cross section of the 3D printed part causing the UV curable resin to partially cure in a precisely controlled way. Oxygen passes through the oxygen permeable window creating a thin liquid interface of uncured resin between the window and the printed part known as the dead zone. The dead zone is as thin as ten of microns. Inside the dead zone, oxygen prohibits light from curing the resin situated closest to the window therefore allowing the continuous flow of liquid beneath the printed part. Just above the dead zone the UV projected light upwards causes a cascade like curing of the part.

Directed Energy Deposition
This process is mostly used in the metal industry and in rapid manufacturing applications. The 3D printing apparatus is usually attached to a multi-axis robotic arm and consists of a nozzle that deposits metal powder or wire on a surface and an energy source (laser, electron beam or plasma arc) that melts it, forming a solid object.

3D Software
Every 3D print begins as a 3D model generated in a modeling program. Years ago, we had to spend lots of money and time to acquire and learn modeling software. Now, there are many easy-to-use modeling software options available, many of which are free.

This is a browser-based 3D design app geared towards beginners. The software features an intuitive block-building concept, allowing you to develop models from a set of basic shapes. Tinkercad is full of tutorials and guides to aid any aspiring novices get the designs they’re looking for. It even allows you to share and export files with ease

Blender is actually a free 3D modeling software which was originally for 3D animation and rendering using polygonal modeling techniques. Despite its origins as a software for artists, it is considered quite accessible. One of the software’s interesting features is the photorealistic rendering option. This gives the models an air of realism that few free software can achieve.

This open-source software is an advanced solid modeling system with interactive geometry editing. It is apparently used by the U.S. military to model weapons systems, showing that it is quite dependable but also very advanced. BRL-CAD offers a high level of precision due to its use of specific coordinates to arrange geometric shapes.

DesignSpark Mechanical
This nifty and free CAD software is ideal for professionals and advanced hobbyists alike. The user interface is relatively straightforward and the software runs quickly, meaning efficient designing. You also have the capability to generate a bill-of-materials that calculates the cost of printing potential 3D design projects.
DesignSpark Mechanical allows users to utilise an in-built library to mix with own drawings. Another feature that new users might find useful is the pull feature that allows users to create 3D models from only a surface. It is feature-rich for a free software and quite beginner-friendly.

This nifty cloud 3D printer management software comes at a cost. The essential idea is the management of the entire 3D printing process with one platform. Users can edit and repair designs, slice STL files from the cloud, and even send files for printing from anywhere in the world. The software also features the capability to share CAD files.






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