Creating a Hem

	This task explains how to generate a hem from a spine and a profile.
	The SweptWall01.CATPart document is still open from the previous task. If not, open the SweptWall02.CATPart document from the samples directory.
	Select the `Hem` icon in the `Swept Walls` sub-toolbar.

	The Hem Definition dialog box opens.
	Select the edges as shown in red.

	Enter 2mm in the `Radius` field, and 3mm in the `Length` field.
	Click the `More` button to display the `Bend Allowance` tab allowing you to locally redefine the bend allowance settings. You may need to deactivate the formula using the contextual menu on the field and choosing `Formula -> Deactivate` before editing the value.

	In this case, the new K Factor value overrides the value set in the Sheet Metal Parameters.
	Click `OK` to create the hem.

	The feature is added to the specification tree.
	Use the `Tangency Propagation` button to select all tangentially contiguous edges forming the spine (see Selecting the Spine). You can redefine the hem limits by choosing the `Relimited` option (see Redefining Swept Walls Limits).