Understand the User Coordinate System (UCS)
 
 
 

To delete a named UCS

  1. Click Tools menu Named UCS.At the Command prompt, enter ucsman.
  2. In the UCS dialog box, Named UCSs tab, select the UCS you want to delete.
  3. Press DELETE.

    You cannot delete the current UCS or a UCS with the default name UNNAMED.

 Toolbar: UCS 
 Command entry: UCSMAN

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