I found this joint sample hiding in a box of CNC-cut joinery samples I made for students to consider when designing their project. 

For Low Angle Corners

One half slides into the other half.

Not quite as simple as it looks to cut

I endeavored to figure out how to connect wood pieces at any angle with a CNC-cut joint while I was teaching.  This is an extreme sample that I don't remember ever using for a student project.  The left half in the photo above is the complicated one to cut.  The sides taper in as the bottom of the dovetail is narrower than the top.  

This sample will return to the box I found it in to wait hopefully for the day when it can come out to inspire a real corner connection on an actual project. 

4D