To specify an overlap gap select overlap gap.
Inventor sheet metal corner seam.
About sheet metal parts.
An automatic corner feature occurs when you create two flange features using identical parameters on adjacent edges of a sheet metal face.
You can create a corner seam or rip an existing corner seam between sheet metal faces.
To create a three bend corner you can use corner seam or auto miter.
You can create a corner seam or rip an existing corner seam between sheet metal faces.
Specify any of the following in the corner edit dialog box.
You can change the values for an individual corner.
Create corner seam between sheet metal faces create seams between faces that intersect or are coplanar.
The corner edit dialog box lets you can specify an overlap type overlap gap relief type and relief size that differ from your sheet metal style or from the default value specified in the active sheet metal style.
To create a three bend corner you can use corner seam or auto miter.
On the ribbon click sheet metal tab modify panel corner seam.