[JimH]

I used my router to build a jig for my table saw to make either lap joints or tenons. If you use the same setting principles as you would for the router, you get a consistent tenon or lap joint every time.

 

[JimH]

I use my table router to make tenons. 2 passes of infinite adjustment for size using either a 1/4 or 1/2 inch spiral or straight bit. I can even hold the piece upright and nip off the ends to make it a hidden tenon. For making the matching mortice I set the hight and distance using a fence. I place the mortice exactly by penciling a start and stop line accross the upside of the piece. I then focus my laser (cieling mounted) directly on the bit and it marks the top of the piece for start and stop. It is precise and exact. I also use the laser for making initials in pieces. It is a great device.