Sheet Metal Corners

[ClintWestwood]

I am importing drawings from autocad which are known to bend correctly in real life. However, when I bend the parts on inventor, there is interferance with the corners. Material is 18 GA. HRPO, bend radius and k-factor are updated correctly (to my knowledge). In my "folded" image, is there a way to prevent the part from bending past the bend line? 

[blair]

I would start with just the flat base with the holes and do both flanges together if they are the same leg-length  and set your corner Rip accordingly.