Close Corner, With Circular Cutout
Sheet Metal > Change length > Corner/Mitre > Mode: Close corner, round 
Use this function to closes open corners that are created when adding flanges to a sheet. A round cut-out in the bend zone or milling edge zone will be created in the process. The inner edge can be either specified as Flush or Projection, percent.
Proceed as follows:
- On each flange, select an edge of the longitudinal side, or right-click and select the front side.
- Specify the diameter of the cut-out.
The corner can be closed then with OK.
(1) Open edge
(2) Front edge
(3) Closed corner, inner edge, flush, with cut-out
(4) Top view of the closed corner
