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+ | ====== A synopsis of the FDM process ====== | ||
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+ | ======What is FDM?====== | ||
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+ | FDM stands for Fused Deposition Modeling, a name invented in the late 80’s as the first rapid prototyping processes were being developed. | ||
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+ | The model is created on a base which is also computer controlled to index downward one layer thickness as each layer is completed. | ||
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+ | The resolution and precision of the process varies with the machine and the type of material employed. | ||
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+ | The process, like virtually all other rapid prototyping processes, needs a 3D CAD model in the form of an STL file. Virtually all 3D CAD programs are capable of producing these. | ||
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+ | The materials that can be employed are thermoplastics, | ||
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+ | To allow hollow sections and overhanging parts, the process automatically generates supports. | ||
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+ | The advantage of the process is that it can create good sized strong, non-brittle parts of considerable complexity without a lot of difficulty if the limitations are respected. The process is also clean, quiet and does not require liquid resins. | ||
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+ | Even small structures can take a number of hours to build, larger objects may take days and even weeks to finish. | ||
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