About Modifying Block Definitions

About Modifying Block Definitions

You can modify a block definition using several methods. 

Modify a Block Definition

There are several methods for redefining a block definition. The method you choose depends on whether you want to make changes in the current drawing only or in a source drawing also. 
  1. Modify the block definition in the current drawing. 
  2. The Block Editor provides the easiest way to modify a block in the current drawing. The changes you make and save in the Block Editor replace the existing block definition, and all references to that block in the drawing are immediately updated. 

    An alternative way to modify a block definition is to create a new block definition, but enter the name of the existing block definition. You can insert and explode an instance of the original block and then use the resulting objects in creating the new block definition. 
  3. Modify the block definition in the source drawing and reinsert it into the current drawing. 
  4. Updating a block that was created in another drawing and then inserted into the current drawing does not trigger an automatic update (unlike inserting xrefs). To update a block that has been updated in another drawing, you must reinsert it. 
  5. Update a block definition that originated from an inserted drawing file. 
  6. Block definitions created in your current drawing by inserting a drawing file are not updated automatically when the original drawing is modified. You must insert the drawing again to update a block definition from the drawing file. 
  7. Update a block definition that originated in a library drawing (advanced). 
  8. Inserting a block using DesignCenter does not overwrite an existing block definition. To insert a block definition that has been updated in a block library, for example, use WBLOCK to save the block as a separate drawing. Then, insert the drawing to overwrite the outdated block definition. 
Block descriptions are stripped off when using INSERT. Use the Clipboard to copy and paste a block description displayed in the Block Definition dialog box from one block definition to another. 

Remove a Block Definition

The block definition remains in the drawing, even when all references to that block are erased. In order to remove the block definition, you need to purge it. 

Powered by AutoCAD®
    • Related Articles

    • About Inserting Blocks

      Save time and control the drawing size by inserting references to a set of objects that have been combined to form a block.  Sources of Block Definitions You can insert blocks from these sources:  Blocks defined in the current drawing.  Other drawing ...
    • About Defining Blocks

      You can create blocks by associating objects and giving them a name or by creating a drawing to be used as a block.  Block Definitions Whenever you create a block or insert a drawing as a block, all of the block information in the block definition, ...
    • Understanding the Blocks Palette

      Blocks can be inserted into a drawing with the Blocks Palette, the Tool Palettes window, or Design Center, depending on which of these tools best suits the user's needs. This article focuses on the Blocks Palette. To access the Blocks Palette, enter ...
    • About Blocks

      Blocks are compound objects that are commonly used for symbols, parts, detail views, and title blocks.  A block is one or more objects combined to create a single object. The following are some examples of blocks inserted into drawings.  Using blocks ...
    • Modifying Polylines

      Stretch a Segment You can select a grip to make changes directly. Select the polyline to display its grips. Select a grip and drag it to the new location. Menu Options for Modifying Polylines Several options become available when you select a ...
    • Recent Articles

    • Toolbox Release Notes | Build 21.2.0111.641

      The following Release Notes apply to Toolbox Build 21.2.0111.641 Scrap Management Resolutions: Resolved an issue that was causing the Offal Cutting pattern to cut into rounded parts. Saw Optimizer Resolutions: Resolved an issue where the PTX output ...
    • Toolbox Release Notes | Build 21.1.1227.641

      The following Release Notes apply to Toolbox Build 21.1.1227.641 Edit Design Data Resolutions: Resolved an issue where the workbook prefix (e.g. "L!") would not be added when applying a local variable to a formula. Resolved an issue where the "Revert ...
    • Machine Implementation Process

      Thank you for choosing Microvellum as your platform to streamline your design, engineering, and production processes within your company to propel your business forward.  Follow the steps to ensure a successful and timely implementation of your CNC ...
    • Planning for a Successful Implementation

       Service Engagement Process Thank you for choosing Microvellum as your platform to streamline your design to manufacturing processes within your company. Follow the steps to ensure a successful and timely implementation of your services. Information ...
    • Integration Guide for the Component Cabinet Library

      Below you will find file downloads for Microvellum's Component Cabinet Library Integration Guide.  Form fields are pre-filled with either Metric or Imperial library default values.   This integration guide contains details and settings from ...