AutoCAD

How to Unexplode an Object in AutoCAD

Understanding the Concept of Unexploding in AutoCAD

Introduction to Exploding in AutoCAD

Exploding in AutoCAD is the process of breaking down a compound object into its individual components. This action allows users to modify the separate elements that make up the original object, such as blocks, polylines, and regions. Once an object is exploded, it becomes a collection of simple geometric entities which can be independently manipulated.

What Happens When You Explode an Object?

The explosion of an object leads to the division of that object into its basic forms. Color, linetype, and lineweight of these elements may change post-explosion. Different types of compound objects yield varying results upon being exploded, thus understanding the characteristics of the object in question is essential.

Is There an “Unexplode” Function?

AutoCAD does not have a direct “unexplode” command that reverses the explosion. However, there are alternatives to consolidate the shapes back into a group or block. Users can recreate a block using the BLOCK command or modify the components using the BEDIT command. An effective approach is to utilize the JOIN command which connects selected lines, provided they are converted into polylines.

Steps to Create a New Block After Exploding

  1. Select the Components:
    After an object has been exploded, select the individual lines or shapes you wish to group back together.

  2. Convert Lines to Polylines:
    If the components are not already polylines, convert them using the PEDIT command. This ensures that the segments can be joined.

  3. Using the JOIN Command:

    • Type “J” after selecting the necessary components to join them.
    • Press Enter to finalize the command, effectively linking the selected elements.
  4. Creating a New Block:

    • Access the BLOCK command from the Home tab.
    • Define the objects that will comprise the new block and name it accordingly.
    • Save your block for future use.

Joining Lines and Polylines

To efficiently manage lines, use the JOIN command:

  1. Access the MODIFY Panel:
    Locate the Modify panel on the Home tab.

  2. Click on Edit Polyline:
    Choose the Edit Polyline option to initiate joining.

  3. Select the Lines:
    Choose the lines or polylines that you wish to merge. They must end at points where the segments connect.

  4. Finalizing the Join:
    Press Enter after making your selection.

Flattening Multiple Elements

In cases where multiple objects need to be compressed or refined:

  1. Select Items:
    Use a window selection to encompass the desired objects.

  2. Applying the SCALE Command:
    Enter the SCALE command and specify a scale factor less than 1 to reduce the size of the grouped elements.

Modifying Individual Components

If you wish to alter the characteristics of individual components after an explosion:

  • Utilize Properties Palette: Access the properties of each geometric figure through the Properties palette. Here, you can change color, linetype, and other specific properties.

Frequently Asked Questions

1. Can I explode an array of objects in AutoCAD?
Yes, you can use the EXPLODE command on arrays to break them into individual elements. Ensure that the associative option is selected when creating the array for flexibility.

2. Are there any objects that cannot be exploded in AutoCAD?
Certain objects, such as ellipses, blocks, and circles, cannot be individually stretched or altered after being grouped unless they are exploded first.

3. How can I stretch components of an object in AutoCAD?
To stretch sections of an object, select the items with a crossing window that includes at least one vertex or endpoint. Use the STRETCH command to adjust the desired portions effectively.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.