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3d printing rice progggram stem girl1/15/2024 ![]() stl file may also include information such as the color, texture, and thickness of the object to be printed. 6 Along with shape, the instructions in the. stl file format to interpret the data in a CAD file, allowing these instructions to be communicated electronically to the 3D printer. 1 Hull, who has a bachelor’s degree in engineering physics, was working on making plastic objects from photopolymers at the company Ultra Violet Products in California. 3, 5, 10Ĭharles Hull invented 3D printing, which he called “stereolithography,” in the early 1980s. 5 It is important to note that two-dimensional (2D) radiographic images, such as x-rays, magnetic resonance imaging (MRI), or computerized tomography (CT) scans, can be converted to digital 3D print files, allowing the creation of complex, customized anatomical and medical structures ( Figure 2). ![]() 5 The printer then continues to follow the instructions, moving the printhead along the z-axis to build the object vertically layer by layer. 9 In a basic setup, the 3D printer first follows the instructions in the CAD file to build the foundation for the object, moving the printhead along the x–y plane. 9 These technologies can build a 3D object in almost any shape imaginable as defined in a computer-aided design (CAD) file ( Figure 1). There are about two dozen 3D printing processes, which use varying printer technologies, speeds, and resolutions, and hundreds of materials. 1 3D printing is expected to revolutionize medicine and other fields, not unlike the way the printing press transformed publishing. 6 Some 3D printers are similar to traditional inkjet printers however, the end product differs in that a 3D object is produced. ![]() 1, 8, 9 This process is also referred to as additive manufacturing (AM), rapid prototyping (RP), or solid free-form technology (SFF). Three-dimensional (3D) printing is a manufacturing method in which objects are made by fusing or depositing materials-such as plastic, metal, ceramics, powders, liquids, or even living cells-in layers to produce a 3D object.
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