Let's start with the historical origin of fused deposition modeling technology. FDM technology appeared in the late 1980s. In 1988, Kotkrump invented FDM (Fused Deposition Modeling Technology), and the following year Kotkrump founded Stratasys. In 1992, the first 3D printed product based on fused deposition molding technology was sold. FDM molding technology has been patented by Stratasys.
The FDM molding principle is relatively simple. Before printing, the FDM 3D printer's built-in software automatically reads the 3D model data and layers it. After layering, the liquid melted at a high temperature is extruded through the print head, and it is quickly condensed and solidified when it is cold. Then the print head swings on the plane and the printing plate moves downward to form a three-dimensional object.
Getting started with 3D printers revealing the forming principle of FDM technology
FDM forming principle, the printing head realizes the movement on a plane, and the printing platform moves up and down to realize the layering. 3D printing needs to go through the process of 3D scanning and 3D modeling, and finally complete the 3D printing product. Of course, 3D printers based on FDM molding technology are no exception. Excluding the 3D scanning and 3D modeling process, as far as 3D printing itself is concerned, FDM molding technology generally goes through the following steps. First, the FDM software analyzes and layeres the 3D model data to generate the printing path and the support path. Second, the print head and print platform will rise to the temperature set by the 3D model.
Finally, during the printing process, the displacement of the printing head on the plane and the up and down displacement of the printing platform will form a three-dimensional space, and the printing head and the printing platform will print according to the generated path. During the printing process, after the print head completes a printing task on a flat surface, the print platform automatically drops one layer, and the print head continues printing. Repeat until the completion of the finished product.
From the model to the finished product, teach you how to play 3D printing
In the printing process of FDM 3D printers, when the print head finishes printing on a level, the printing platform automatically descends until the finished product is completed. During the printing process, the wire inserted into the print head will quickly melt, and it will instantly condense when squeezed out through the print head. The temperature of the print head is relatively high, and the temperature of the print head is relatively different depending on the material and the design temperature of the model. In order to prevent problems such as warping of printed objects, the printing platform is generally heated, and the printing platform is generally covered with sticky paper to facilitate the peeling of the printed product.