3D printing 레포트

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3D printing 레포트에 대한 자료입니다.
목차
Basic principles
General Process
Components of an AFM
The AFM Cantilever and Tip
Materials for 3D printing
Low pass filter
Possibility of the gold film on the cantilever
본문내용
3D printing
3D printing or additive manufacturing (AM) refers to any of the various processes for printing a three-dimensional object. Primarily additive processes are used, in which successive layers of material are laid down under computer control. These objects can be of almost any shape or geometry, and are produced from a 3D model or other electronic data source.

Basic principles
If the paper feed in your ink jet printer ever got stuck, you saw the same line being printed over and over as the drying ink built up. That in essence is the principle of 3D printing. In normal ink-jet printing, the 2D (two dimensional) printing program steers the printing nozzle from right to left and instructs the deposition of ink droplets to form a line of drawing or of text. When the paper advances the width of the line, the next pass of the nozzle deposits a slightly different pattern. Thus line by line the complete text or the drawing is formed. After the whole page has been printed, a new sheet of paper is inserted and a new text or a new drawing is created.
In 3D printing, after the first layer has been completed, either the vertical position of the nozzle is raised at least 0.1mm (0.004 inch), which is equal to the thickness of good quality paper, or the supporting table is lowered an equivalent amount, and the process is repeated. In order to build an object the controlling drawing for each layer changes very slightly.
Typical standard manufacturing methods are subtractive, that is material is removed from a base form by machining with a lathe, with a drill, by cutting, planing or broaching. By contrast 3D-printing is an additive process, because material is added, layer by layer.
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