Exploding a Resized CAD Block

Reference Number: KB-00014
Last Modified: December 18, 2020

The information in this article applies to:

Chief Architect Premier or Chief Architect Interiors


I'm not able to explode a CAD block. When I click the Explode CAD Block edit button, I receive the following error:

"Cannot explode block when x and y scaling are different."

What does this mean?


CAD blocks are a collection of lines, polylines and other CAD objects that have been grouped together to form a single object that can be easily placed, selected, and moved without affecting the appearance of the drawing. To edit the objects that make up a CAD block, it must first be unblocked, however, if the CAD block has been stretched so that it no longer has the same aspect ratio, it cannot be unblocked.

To explode a resized CAD block

  1. Using the Select Objects Select Objects tool click on the CAD block to select it, then click the Open Object Open Object edit button.

  2. On the General panel of the CAD Block Specification dialog:

    Geenral panel of the CAD Block Specification dialog

    • Specify both the Height Factor and Width Factor as 1 in the Size section.

    • Click OK to close the dialog and apply your change. 

  3. With the CAD block still selected, click the Explode CAD Block Explode CAD Block edit button to break the CAD block into its individual components, which can then be edited.

    In X13, the ability to edit a CAD block in its own window was introduced. To use this feature, select the Edit CAD Block  edit button instead.