You can create a contour flange, specify its dimensions, and create a multi-edge contour flange with auto-miter
You define a single contour flange by selecting an open profile. Inventor can create contour flanges along an edge or edge loop.
Inventor previews the flange material thickness along the selected profile and toward the material of the selected edge. However, you can reverse the thickness direction.
You can specify the extrusion distance for a contour flange that is a base feature. You can also specify a distance when the contour flange is longer than the selected edge, or when you cannot select an edge.
If the default bend, corner or unfold settings are not appropriate, use the Unfold Options, Bend, or Corner tabs to change the settings.
To set the extrusion direction relative to the profile sketch plane, click a Direction.
After you start the contour flange command, you can use options to specify the flange width using From To, Offset, Width, or Distance values.
Auto-mitering has contour flanges that share a common corner automatically show a full or partial miter. You can modify any of the contour flange parameters.