I last left off with the rough cut legs after cutting them on the table saw. At this point, before we final shape them, we need to make the mortises for the tenons of the apron to mate to. The mortises on this project are going to be a little out of the norm as they will have to mate with the apron tenons at 45 degree angles to allow the legs to splay out to give the effect we need. I consulted my library of joinery to find no examples so I’ll have to figure it out as I go. The joint is basically a 45 but joint to the legs but with a central tenon. This means the apron has to be cut at 45 degrees for the shoulder. The tenon will extend parallel to the apron centrally as is normal for a typical mortise and tenon. The mortise will have to be cut at 45 degrees into the face. As is typical, I begin with the mortise first then fit the tenon.
To cut the mortise at 45 degrees into the face, I ran into the difficulty of holding the workpiece at a 45 degree angle. So I built a jig to do so. Since the legs are all relatively uniform at this point, they should all fit on the same jig. Here is a picture of the jig.
The next step is to do rough stock removal. I will do this on my drill press utilizing the fence. I constructed the leg to fit the jig using a level so the fence of the drill press will easily track the plumb line of the leg when roughing out the mortise. I clamped the leg to the jig and began my work.
After all was said and done, I wished I had piloted my holes at 90 degrees versus trying to begin at 45 degrees because the bit jumped around a lot and pushed the jig away from the fence making the cut not very clean.