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AutoCAD 2017 has been renamed Autodesk AutoCAD 2017. It is now the only version of AutoCAD.

History

AutoCAD is an acronym. The three initial letters of AutoCAD, Auto CAD, are derived from the acronym of the program’s technical creator, Autodesk. The first two letters stand for Auto Dynamic Computer Aided Drafting. AutoDynamic is the name of a company that was founded by John Walker.

AutoCAD’s initial developers were John Walker and two of his colleagues at Autodesk: Wes Parks and Tony Jones. John Walker was Autodesk’s third co-founder and the company’s third president.

When Autodesk developed and marketed AutoCAD, the product was released as shareware. This was one of the first shareware CAD programs. John Walker and Wes Parks were also major contributors to the first three versions of AutoCAD, as well as to subsequent versions.

AutoCAD originally ran on a DOS-based platform. This was followed by the transition to a Windows-based platform in 1986. AutoCAD was originally designed to work with a low-resolution bitmapped graphics system. This was a major departure from traditional CAD programs that used a pen plotter for drafting and a raster image of the drawing, or a screen-based system for displaying the drawing.

After Autodesk released AutoCAD, it was developed by a variety of people. Mike Connors, a former Autodesk employee, founded Microtech Design and published the first version of AutoCAD for DOS.

One of AutoCAD’s early leaders was Tom Hawkins, an employee at Dyno-Rod. Hawkins is the creator of the Dyno-Rod SDK (software development kit), which was first developed for use in AutoCAD in the 1980s. The Dyno-Rod SDK allowed programmers to extend AutoCAD from its original functionality.

The Dyno-Rod SDK was later replaced by the Nastran/DYNA Software Library, which is supported by Nastran Inc. This was a key advance for AutoCAD.

The first Mac port of AutoCAD was released in 1983. John Walker first shipped AutoCAD on Macs in 1989.

The first version of AutoCAD for the Windows platform was released in 1992.

A major new feature in AutoCAD in

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Can be imported into other products within the Autodesk portfolio, such as AutoCAD LT, Inventor, Revit, Architectural Desktop, Schematic, Project and 3ds Max, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Google Earth, and others.

The program has been criticized for its complexity and lack of accessibility. On the other hand, it has been praised for its accuracy and ease of use, and that it is „everything“ for designers and architects.

Features

Beside basic drafting tools, which are generally available in all CAD software, AutoCAD supports advanced drafting features such as:

2D and 3D drafting with „AutoLayout“

Create, edit, view, print, and export drawings

NURBS modeling

Annotation (including use with GPS)

Enhanced form editing

Compound curves

Nested components

Drafting and annotation

NURBS

NURBS (Non-Uniform Rational B-Splines), introduced in 1994 by John Burkard, are a geometric spline that can be used to create parametric surfaces. They are a valuable tool for creating surfaces that cannot be represented by polylines or arcs.

A NURBS curve can be defined by a start point (point 0), several control points (points 1–6), and a direction of tangency (e.g. right, left, down). The shape of the NURBS curve can be described as a collection of tangent lines connected at the control points. The shape is specified by defining the orientation of the tangent lines, by specifying the positions of the control points, and by defining the „curvature“ (length-to-width ratio) of the curve at each point. The curves can be defined to have any type of polygonal shape, as a series of straight lines, or as a series of curves.

AutoCAD includes a simple but powerful NURBS modeler. It supports both parametric surfaces and free-form surfaces.

Geometric modeling

Multi-layer modeling
Multi-layer modeling is the ability to define several different layers for one drawing. This is often used to define one object (a drawing) that has several properties or „views“ that should be shown (e.g. a floor plan that includes rooms, hallways, stairs, or a floor plan that includes separate floors). All of these views can be shown
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Enter the product key of your license and press „Generate“.
Go to the „Registration“ and make sure you have updated to the latest version of Autodesk AutoCAD.

References

Category:AutodeskProtein deficiency and the proteome: the search for a mammalian minimal nutritional requirement.
Despite the known beneficial effects of protein in promoting human health, there is considerable debate about the minimal dietary protein requirement. Over the last century, the historical protein energy malnutrition (PEM) pandemic in the developing world has been counterbalanced by the increased use of animal protein in the western diet. This paper summarizes the results of a long-term randomized controlled feeding study, conducted in the Netherlands, to investigate the effect of reducing dietary protein levels on human energy and nitrogen metabolism. On a long-term basis, the well-controlled diets varied in protein content from 0.52 to 1.30 g protein per kg energy and included animal and vegetable proteins at two levels. Energy intake, body weight, composition, and fasting blood chemistry were assessed monthly. As expected, weight loss was more rapid on the low-protein diet, because of the lower energy content. Proteins were reduced gradually from the first to the third week of the study. This decrease in protein intake was associated with modest decreases in protein and energy metabolism, and a decrease in energy expenditure and fasting serum urea concentration. At this stage of the study, protein deficiency was induced in subjects consuming the lower level of protein, but at the end of the study, body weight was stable and the protein intake was equal for both diets. This study shows that the human body has a marked metabolic response to reduced protein intake, both in terms of body weight and protein metabolism. In particular, protein metabolism was affected, with an associated increase in the concentration of free amino acids in plasma. It also shows that, in spite of the short-term metabolic response to protein deficiency, a protein level of 1.0 g protein per kg energy is sufficient for a long-term balance of energy and nitrogen metabolism. This is the first study to investigate the effects of protein deficiency in a controlled feeding study. This paper summarizes the results of a long-term randomized controlled feeding study, conducted in the Netherlands, to investigate the effect of reducing dietary protein levels on human energy and nitrogen metabolism. On a long-term basis, the well-controlled diets varied in protein content from 0.52 to 1.30 g protein per kg energy and included animal and vegetable proteins at two levels

What’s New In AutoCAD?

Easily create designs from markups or annotations from other applications.

Easily add annotations to your drawings, and customize your own annotations for any application, using the built-in Markup Assist. (video: 1:52 min.)

Create and customize your own annotations, add commands to the drawing interface, and control the behavior of the tools. (video: 4:16 min.)

Create high-quality, multi-colored line artwork.

Integrated 2D artwork is no longer saved as separate layers, and exporting artwork to PDF or EPS files is more efficient.

Add 2D layers to drawings as part of standard color mode.

The auto-embedding of art layers and commands is as easy as embedding a 2D object in an embedded annotation.

Integrate annotation layers into 3D applications such as NX and Revit for immersive, collaborative, and synchronized collaboration.

Track different versions of your drawings and comments within the same file. (video: 3:59 min.)

Support for 3D Printing

AutoCAD 2023 is now fully compatible with Windows 3D printing, including direct-to-object and object-to-object printing. (video: 1:30 min.)

A new ACADUTIL command let you import a 3D model file into your drawing and the model is fully editable, just as if you had imported the file into a separate drawing.

Modify the original model and export as a new 3D model file. (video: 1:37 min.)

Add 3D drawings directly to the model without having to import the model into a separate drawing. (video: 1:29 min.)

Collaborate more effectively by sharing and managing multiple versions of the model file. (video: 1:32 min.)

Automatically convert 3D model files from other applications into editable models in AutoCAD. (video: 1:52 min.)

You can now also send 3D models created in a 3D application such as SketchUp directly into AutoCAD as editable models. (video: 1:28 min.)

The export of 3D models is more efficient: As a result, you can import your model into AutoCAD, edit it, and export it again in much less time. (video: 1:33 min.)

3D Model Export improvements

Support for most S/390 systems

System Requirements:

Minimum:
OS: Windows 7, 8, 10
Processor: Core i3-3220 @ 2.3 GHz or Core i5-2400 @ 2.5 GHz
Memory: 2 GB RAM
Hard disk: 30 GB
Video: NVIDIA GeForce GTX 1050 2 GB or AMD Radeon RX 470 2 GB
Graphics: DirectX 9.0 or OpenGL 3.0
Input: Keyboard, mouse
Networking: Broadband Internet connection
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