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STL is a file format native to the stereolithography CAD software created by 3D Systems. [3] [4] [5] Chuck Hull, the inventor of stereolithography and 3D Systems’ founder, reports that the file extension is an abbreviation for stereolithography, [6] although it is also referred to as standard triangle language or standard tessellation language.
The time required for printing a completed part from a data file (.stl or .obj) is calculated as the sum of time for the following stages: Pre-processing stage, which spans the preparation process of both part and printer. This is required before the actual printing starts.
This measure is used in the analysis of particle sizes, for example in microscopy, where it is applied to projections of a three-dimensional (3D) object on a 2D plane. In such cases, the Feret diameter is defined as the distance between two parallel tangential lines rather than planes .
LOD is a measure of the level of detail and accuracy included in a 3D model. The LOD levels range from 100 to 500, with LOD 100 representing a conceptual model that shows the basic massing and location of objects, and LOD 500 representing an extremely detailed model that includes information about every aspect of the building, including MEP ...
3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. [1] [2] [3] It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, [4] with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.
Cardboard assembly of a Trifoil 3D model planned in 123D Make. Autodesk 123D was a suite of hobbyist CAD and 3D modelling tools created by Autodesk. It is similar in scope to Trimble SketchUp and is based on Autodesk Inventor. [2]
File sizes of the models can be up to 50 MB. Anyone can make, modify and re-upload content to and from the 3D warehouse free of charge. [ 30 ] All the models in 3D Warehouse are free, so anyone can download files for use in SketchUp or even other software such as AutoCAD , Revit and Archi CAD - all of which have apps allowing the retrieval of ...
File size is a measure of how much data a computer file contains or how much storage space it is allocated. Typically, file size is expressed in units based on byte. A large value is often expressed with a metric prefix (as in megabyte and gigabyte) or a binary prefix (as in mebibyte and gibibyte). [1]