About 3d Printing.
Introduction to 3d Printer
3D printers uses additive manufacturing technology, in which we create 
physical objects using raw materials like plastic, metal, gypsum, concrete, glass, ceramic, anything. For a 3D printer to create an object, the three dimensional design of the object is first created inside a computer using Computer aided design (CAD) tools. The computer then controls the 3D printer and creates the object by depositing material layer by layer. There are a number of Authorized CAD institutes in Delhi that provide training on AutoDesk’s AutoCAD tool for designing 3D models of real life objects. Wizcrafter the CAD institute is rated one of the top 10 AutoCAD institute in Delhi that provides AutoCAD training classes in Laxmi Nagar, Delhi.
Brief History of 3D printing
3D printing dates back to 1986, when Chuck Hall invented the first 3D printing process called Stereolithography and filed for its patent in USA. 3D printing is a rapidly developing technology since then. But as with all the other technologies, this technology has got its own pros and cons.
Pros of 3D printing
- Creating complex design has become easier with the use of CAD tools. For training in AutoCAD you may approach any of the authorized CAD training institute in Delhi. Wizcrafter institute has AutoCAD centre in Delhi for training from the experts in that field.
- There is no need for tools and molds for creating an object or a part of an object.
- Less wastage of raw material as it uses additive manufacturing technology where material is deposited layer by layer to create an object unlike the subtract manufacturing process, where an object is carved out of raw material using traditional tools.
Cons of 3D printing
- Less material choices: Most of the 3D printers used today are using plastic and metals but this limitation is rapidly vanishing with time as more materials are being used with 3D printers today and these are wood, ceramic, concrete etc.
- Limited strength: The objects created using layer by layer deposition of materials may not have strength as that of the object made using traditional manufacturing process. However with improvement in technology new materials are being tested that are high on strength and endurance like Carbon etc.
- Knowledge of CAD tools is a prerequisite to design 3D objects. There are many training center that provide CAD coaching in Delhi. With expert guidance and experienced faculty you can learn the CAD designing easily and overcome the hurdle of lacking appropriate knowledge of CAD tools.
Basic Additive Manufacturing Process
There are different additive manufacturing processes as identified by ISO/ASTM52900-15 standards. These are:
- Material Extrusion
- Material Jetting
- Binder Jetting
- Powder Bed Fusion
- Direct Energy Deposition
- Sheet Lamination
- Vat Photopolymerisation
Under the ambit of each of theses processes, there are different technologies that have been developed for creating objects layer by layer. Of these the most widely used one, is Fused Deposition Modeling (FDM) which is a type of Material Extrusion process. In this technology, a filament of plastic or metal or any other material is fed into the extrusion nozzle which melts the filament and deposits it layer by layer, the material hardens immediately to form the layer.
CAD tools available online
But to print anything we first need a 3D design of the object which is created using some of the popular CAD tools as mentioned below, few of which are available online for free. But these are for beginners who want to learn the basics of designing using CAD tools. Some of these tools are available for Windows, MAC OS and even for Android platforms.
But the best way to learn the CAD tool is to learn from the experts, who have been there and done the designing in CAD tools. Wizcrafter institute is the best AutoCAD institute in Delhi NCR.
Once you are done with the design of the object, you can simply feed the design to any 3D printer available in the market in different shapes and sizes. Some of these are:
3DSystem, Stratasys, Carbon 3D, Envisontec, MakerBot, Printrbot, hp and many more such companies are into making the 3D printers which will be difficult to fit in here. Most of these 3D printing shops also provide you with the materials like plastic, metal, carbon etc with which you plan to create your object.
Conclusion
So, in all you will need two things to be able to 3D print any type of object.
- A 3D printer that can be bought online or through the vendors in your city and
- knowledge of designing objects of your choice using CAD tools – That’s where you will need us.