The 90° Open V-Groove involves two symmetrical cuts: one in the fallout and a corresponding cut in the matboard, both forming a mirrored arrangement a specified distance apart. The matboard core is not visible but the lower layer matboard is visible from the front.
First Cut: Cuts the Interior cut into the Fallout Clockwise: 90 Degree Bevel Drop*.
Second Cut: Cuts the Exterior cut into the Matboard Counter-Clockwise: 90 Degree Bevel Opening.
*The Drop is one of the categories within certain opening styles, like the initial section cut of an Open V-Groove. However, it cannot be chosen as a standalone bevel type within Designer.
Select Normal Drop or Normal Drop-Front of Mat from the Current Bevel Type dropdown control to edit the interior cut configuration.
Select Normal Bevel or Normal Bevel-Front of Mat from the Current Bevel Type dropdown control to edit the exterior cut configuration.
See: 90 Degree Normal Bevel Drop Configurations
See: 90 Degree Normal Bevel Opening Configurations