The Write Block dialog box displays different default settings depending on whether nothing is selected, a single block is selected, or objects other than blocks are selected. Source Specifies blocks and objects, saves them as a file, and specifies insertion points. Block Specifies an existing block to save as a file.
There are other options however you should be aware of One potential problem is that autocad write a block may need to explode blocks within assemblies so that you can edit linetypes to provide an accurate view.
AutoCad Mechanical solves this problem with its Power Pack add on, any fasteners inserted using power pack automatically adjust for the view they are being inserted in and also retain attributes for use in automatic bill of material creation.
Blocks also increase the size of your drawing file quite dramatically when you use a lot of them. Xref's might be better if you have to insert many instances. Xref's have the added advantage that if they ever get changed, all the drawings in which they are referenced will get their instances updated too.
If you ever did change a standard block you would have to remember all the drawings you stuck it in over the last few years and go in and reinsert it in each one. Wblock is what you do to create a block from geometry within the drawing you are working in.
If you had a single drawing of many different kinds of fasteners, you could use wblock to make each fastener a seperate drawing file. In version you also have the group command. This allows you to create sort-of-blocks whose geometry can be changed without the need to use explode command.
If you have a complex machine base for example you could make it a group and be able to edit its size without accidently erasing or messing up all of the other parts of the machine. When you create your blocks make sure you use the same drawing template as the assembly you intend to insert them into.
Your block drawings should have all the same layers and linetypes as all of your drawings. Otherwise everytime you insert a block, your assembly will get unmanageably large numbers of layers and linetypes and will make future edits more and more difficult.
I hope I have given you some options here. Blocks are quite useful but they have limitations. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.
Cancel Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.Yes, you can load Script files in AutoCAD to automate your commands.
You need to write script file in Notepad which can store text in ASCII format. A script file executes a sequence of commands. Aug 14, · The block command creates a block that is only accessible to that drawing. A wblock creates a new *.dwg file which you can insert into other drgs.
Using wblocks you can create a library to save yourself future redrawing. Dec 01, · Need a simple Lisp routine to change a Attribute in a Block; Welcome to CAD Everything, an archive of CAD discussion Need a simple Lisp routine to change a Attribute in a Block Hi, I am a autocad user, but not a programer.
I realize this is probably very simple for someone who knows how to write lisp. But starting a lisp routine from. This seems to re-write the draw order, and the order that AutoCAD draws your entities will now be more reliable. Redefine block with Design Center This quick tip really helps when you want to update a block definition in one drawing from a block definition in another drawing.
AutoCAD r or AutoCAD with the VBA install option enabled (when AutoCAD was installed). To check if the VBA editor is installed in your version of AutoCAD type VBAide at the AutoCAD command prompt.
AutoCAD is a 2-D and 3-D computer-aided drafting software application used in architecture, construction, and manufacturing to assist in the preparation of blueprints and other engineering plans. Professionals who use AutoCAD are often referred to as drafters.