As much as I would love to brag about all my perfectly shaped hand cut mortises, that’s just not going to happen. particularly the perfect part of that. So I decided to cut all the mortises into the legs with a plunge router.
I started out with just marking out where all the mortises are going to be, very carefully since that are not centered on the leg (I 100% messed that up on one)
Then I made a base for my router with some adjustable guides, that slides along the legs. I also made a ‘stop guide’ which marks the bottom of the mortise (with a block at the end to register against the bottom edge), along with some spacer blocks which are used to dictate the length of the mortise.
I would clamp the stop to the leg, and press the spacer against the end of the stop guide, and then press the base of the router base to that. Once I have it all set up I turn on the router I remove the spacer, carefully plunge down trying not to move the base at all, and then slide until I hit the stop guide.
Before I did all this I practiced squaring off a few of these plunged, they didn’t come out half bad.