About Maintaining a Multibody Structure in STEP Import

Interface > Working with Data Exchange Formats > STEP > Importing Part and Assembly STEP Files > About Maintaining a Multibody Structure in STEP Import

When importing Creo files to the STEP format, you can set the import option to Maintain multibody structure of assembly components. Using this option, the STEP assembly is imported as an assembly. The multibody part components of the original assembly are imported as parts with multiple bodies. All relative positions of the bodies as defined by their component transformations are maintained.

The table below summarizes the import results of STEP files for different file and model types:

Original file type	Model type to import	Model type to import
STEP single body part	Part	Imported as a part with a single body.
STEP multibody part	Part	Imported as a part with multiple bodies.
STEP multibody part	Assembly	Imported as an assembly with multiple single-solid body part components.
STEP assembly	Part	Imported as a part with a multibody. Each body in the assembly is imported as an individual body in the imported part.
	Assembly, Maintain multibody structure of assembly components is selected.	Imported as an assembly. The multibody part components of the original assembly are imported as parts with multiple bodies.
	Assembly, Maintain multibody structure of assembly components is not selected.	Imported as an assembly. The multibody part components of the original assembly are imported as exploded subassembly components.