Basically the technique of 3D printing is simple and it does not involve any complicated procedures. The main principle that lies behind all this technique is that it results in the subsequent addition of layers of material in a controlled manner to give the final shape of the three dimensional object. This controlled spreading is accomplished by means of the inkjet printer and by the computer controlled programs involving the use of specific data in this regard. For addition of layers a specific 3D printing filament is also required which is put into use while finalizing the shape of object.
What is modeling in 3D printing
Before giving shape and design to any object or while giving an object the material shape and existence, the most important task is first of all to make the model of that desired object. In this procedure preferably the 3D printable models of the objects are created. This is the job purely of the computer operator and graphic designer. In addition to this a lot of credit also goes to the creative designing and innovation of mind. While designing the models for printing of 3D filament there are a lot of tools and applications. Usually the models are created by means of the CAD software program also known as computer aided design package.
Significance of modern modeling tools
There are various techniques of 3D printing. Whatever the technique may be used, it always involves the usage of filament structure in printing. As far as the types of filaments are concerned, they vary with the modeling and printing methods. For example in case of using the FDM filament the modeling of object is done by means of a specific 3D scanner and printer which carry on the technique by laying down the material in layers. If the professionals are directed to apply the computer aided designing and modeling software, then it may contain certain errors. Therefore these need to be rectified by using the 3D scanner or by means of a digital camera. The software used in scanning and correction is the specific photogrammetry software.
Manual modeling procedure
There is another procedure of modeling in which manual modeling is done. In this technique the models are created manually just like the sculptures are made. In this way the geometric data is obtained to be further programmed for working of the 3D computer graphics. It can also be referred to as the plastic art. After that its 3Dscanning is done and digital data is collected on the basis of shape, design and model of the object. This technique has been found applicable in case of PLA filament printing.


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