Share Email Facebook Twitter LinkedIn To Validate a 3D Solid Click Modeling tab > Solid panel > Solid Edit - Body drop-down > Check. Select the 3D solid object. Press Enter to complete the command. If the object is a valid 3D object, a message is displayed at the Command prompt. If it is not valid, you continue to be prompted to select a 3D solid. Related Concepts About Cleaning and Checking 3D Solids Related Tasks To Remove Redundant Lines From a 3D Solid