I am making a computer desk. The good news is I am going to have more desktop to clutter. The bad news is the joint between the plywood top and the 2x4 frame is ragged. So, knowing an inlay will hide a multitude of sins, I plan on inlaying a 1/8th by 1/2" strip of walnut to hide the ragged joint. Cutting the dado for the inlay is not my problem. My problem is, "How do I get the corners square." What I do not want to do is route the dado and have a ragged corner where two dados come together. The desk is "L" shaped and the inlay will be along the inside of the "L" and on each end. So,I will have 3 mitered corners.
I am not worried about the back joint as it will be hidden by the junk on the desk.
Thanks
Deb