Have you ever tried to explode a block, but it failed to explode? Starting in AutoCAD 2006, AutoCAD includes an option to prevent blocks from being exploded, as shown here.
If you try to explode a block that has been defined this way, you will receive the message “….could not be exploded”. But don’t fear, there is a way to fix this problem. Follow these steps.
- Run the BLOCK command. You will get the same dialog as above except the drop-down list will be empty.
- Select the block in question from the drop down list
- Check ON the toggle labeled “Allow exploding”
- Press OK.
- You will get the following dialog box. Choose “Redefine block”.
Now you’ll be able to explode any block insertions of this particular block definition.