Tag: DXF

DWG – “drawing” is a format used for storing two and three dimensional design data and metadata. It is the native format for several CAD packages including AutoCAD. The DWG format is probably the most widely used format for CAD drawings.

DWG Drawing to PDF Converter allows you convert DWG to PDF, DXF to PDF directly without need of AutoCAD, it converts DWG and DXF files into vector PDF files, quick and easily. There are several claims to control of the DWG format. It is Autodesk who designs, defines, and iterates the DWG format as the native format for their CAD applications. The DWG format is probably the most widely used format for CAD drawings. Autodesk estimates that in 1998 there were in excess of two billion DWG files in existence. There are several claims to control of the DWG format. DWG Drawing to PDF Converter supports a wide variety of versions of DWG and DXF files, it supports DXF or DWG files. PDF converter is convenient and easy to operate, and DWG and DXF files can be directly dragged from Windows Explorer and converted fast.

DWG is a file format.
Applicant is not the exclusive source of files with the format name DWG.
Applicant does not control the use of DWG by others, either as a trademark or as a file format name.
The submitted survey does not reflect recognition of DWG as a trademark, since no distinction was made between use as a trademark and use as the name of a file format.
To tackle “spider web drawing means you must be capable of drawing straight lines. A spider web is not so easy to draw as it looks. If you are thinking of doing drawings of spider webs, take a look around outside to see if you can spot a good looking spider web. Do a quick, rough sketch outside then transfer it once you have a firm surface to draw on. After a bit of practice, spider web drawings were quite easy. For Drawing Corner Spider Web, you have to take your pencil and on the top of the page, about two inches from the right start drawing a line to 2 inches below the right top corner. The line should loop down and have points.
Draw straight lines from the points in your first line to the corner.
Make lines parallel to your fist line going all the way up. You should have 5 or 6 lines.
For Drawing Full Spider Web, Get a paper and make a cross on it, try to make both lines a similar length (using a ruler will help)
Draw diagonal lines through the center, dividing the paper up from 4 to 8 sections.
Start connecting the lines with inverted arcs, this is an arc), from the inside out.

Once you have reached the end of the web, elongate the diagonal lines, this will make it look like it has supports. Draw a spider by making a fuzzy ball, then drawing legs (eight of them) on your web. This spider web drawing in a tree looks quite attractive, a bit like a sailboat. The straight lines were probably the hardest part. You have to be careful while drawings the threads of web link up together neatly and spaced fairly accurately. Some spiders take pride in their homes obviously.

In the field of design, 2D drawings play a very important part. Even though 3D models provide the advantage of automatically generating linked 2D drawings, in some fields designers use 2D drawings as the standard. To improve efficiency of creating 2D drawings with ZW3D CAD software , a good solution is to customize the templates that form the basis of 2D drawings. I’d like to introduce to you some of the tips I’ve learned for how to efficiently customize 2D drawing templates. First, let’s summarize the key reason for using 2D drawing templates. They hold preset paper sizes, drawing formats (such as drawing borders and title blocks), link relations with part attributes, drawing standards (such as fonts, dimension and view attributes, and methods of projection) – and all of these can be set as defaults. In preparation for customizing a 2D template, let’s check some of the configuration settings, such as the names of the template file, attribute bundles file, and paper size file. See figure 1.

Figure 1 Configuration
1.Setting Up the Default Paper Size Using Notepad, add custom paper size information to the paper size file, such as DEF_SHEET_MM (located in the installation folder like C:\Program Files\ZWSOFT\ZW3D 2012 Eng\supp), as shown in figure 2.

Figure 2 Paper size customization
Open a template file, such as Template_MM.Z3, and then create a new 2D drawing. To set the default paper size, choose Edit->Preference- from the menu bar. The newly-added option is listed in the Drawing Settings dialog, as shown in figure 3.

Figure 3 Setting a custom 2D drawing paper size
2.Setting Up the Title Block To create the title block, I can import DWG or DXF files into ZW3DCAD/CAM , or else copy the 2D geometry from another ZW3D 2D drawing, and then make suitable modifications. If, however, there are no materials that I can reuse directly, then I’ll need to draw them from scratch. Figure 4 illustrates an example of one that I created by importing a DWG file containing the title block I wanted.

Figure 4 Title block
3.Setting Up Link Relations Link relations are very important. With them, changes to part attributes will result in the automatic updates of 2D drawings. To create link relations, just use one expression [$part_AttributeName] Except for standard part attributes, 2D drawings can link with user attributes defined by the CAD operator, as shown in figure 5.

Figure 5 Linking data using part attributes
4.Setting Up Fonts ZW3D CAD design software offers a collection of its own fonts and it supports most TrueType fonts. If your project needs a specific font, then follow this simple step: Copy the .ttf font file to the C:\Windows\Fonts folder of your computer. The next time you start ZW3D, the new font will be available. 5.Setting Up Attributes To get high quality 2D drawings, it is important to predefine needed attributes, such as views, text styles, and hatches. By including these in the template drawing, you save a lot of time and reduce errors. For instance, let’s manage several dimension attributes. Right click the dimension and open dimension attributes dialog box, after modifying then give a name to the new attribute. One point to which you must pay attention is that you must save the attribute bundles file involved in the configuration. See figure 6.

Figure 6 Defining new attributes
When it comes to using attributes, I can change the dimension attribute by redefining it by picking the new one from the bundle file, or else by copying the attribute from another one, as shown in figure 7.

Figure 7 Modifing attributes
6.Setting Up the Default Template It’s not uncommon for me to have several 2D drawing templates, each one different. Of these, however, I use only one frequently. Here is how to set up a favorite template: employing configurations, I can define the default template easily, as shown in figure 8.

Figure 8 Specifying the default template
But sometimes, to save time, I need to use template files from other designers. This is not difficult in ZW3D, for all I need to do is to copy the Z3 template file from them, and then other defines the configurations. Everything can be reused!

If you would like to try it, then take just a few minutes to customize your own 2D drawing templates.

About the Author: ZW3D CAD/CAM Software Technical Engineer

There are millions of drawings lying all around the world. These are invaluable pieces of paper, which have created monuments, buildings, machines and infrastructures. As the time passes by, these paper drawings are endangered being lost to disaster or being lost. There is an urgent need to make sure that all the paper drawings which are lying in offices, godown and secured places to be restored in a manner which will enable them to be with us for a long time.

The various means by which we can convert the old paper drawings to CAD are:
Automatic conversion using software
Manual conversion by draftsman
Precision redrafting
Scanning and storing

Of the above-mentioned methods, the cheapest method is to scan the document and store it in a computer. You can get it printed as and when you want it. There are numerous scanning companies all over the place who can scan large documents using highly complex scanning machine. You can scan any old documents and once scanned the document is there with you for lifetime. New York Document Scanning, www.new-york-document-scanning.com

If you plan to use the CAD file in future for making changes to the original design, which was done on paper, the best method is to get the drawing converted to CAD using draftsman with experience in CAD software. During this process, and as requested, text is re-typed and drawings are re-scaled 1:1. Specified items are also converted to different layers and colors to conform to the drawing standards. The end result of this meticulous process, being a CAD files which is identical to a drawing done on paper and which also requires no further work. http://www.convert2cad.com

Simple vectorisation is the conversion of a scan or raster image into a CAD or vector file. The process is achieved through the use of software that studies the raster image and tries to recognize and then replace the raster image with lines or vector information. The result is a dxf file, which is layered according to line thickness, line type and text. The image will require some manual clean up, the extent of which will depend upon: 1) The quality of the original 2) The amount of information required from the converted file. (Often clients do not require the title block etc.) 3) The quality of the line work and whether the text was typed or hand written.
BENEFITS OF CAD CONVERSION
Perfect drawings, which can be modified as and when required in the fastest possible manner.
Able to access drawings at a click of a button
Storage of the drawings becomes very easy
Can make multiple copies at no cost
Transmission of document is very fast
Multiple print can be taken as a very high speed
Thousands of drawings can be stored in a single DVD / CD
A new file, we can create as many layers as you require. We generate separate layers for dimensions, text, body, hidden lines, and centerlines, etc.
Text is separated and has its own layer and is recognizable as text
Dimensions are intact and are shown by a separate layer.
High accuracy
Normally create a drawing as a new file; the final output is editable and will be in DXF, DWG, DGN or any other CAD formats
Cost effective hand-drawn conversions.
The converted drawings are manually drawn with precision and are fully editable and contains:
Accurate layer information Accurate text (editable)
Accurate line types (editable)
Associative dimensions (adjustable)
Symbols & blocks of standard components Title blocks (as per scale)
Associative hatch patterns (editable)
Once you have converted the paper drawings to CAD format there are lot of thing that can be done with those dwg files. They can used to created 3D models and then generate rendered images or animation by using advanced software’s. http://www.convert2cad.com/samples.htm