Router Centering Jig

This will be my last jig for a while, but I thought it might be helpful for others to see. I haven’t used it yet, but would welcome advice or warnings. I made this cut slots in some railings. I’ll use a 3/8’s inch spiral upcut bit to accomplish this. I’ll then fit slats into the grooves I cut, shich are 3/8’s inch thick and ripped to width on the table saw. I used a 3/8 semi circular router bit to roundover the sides. The best way to describe this is probably to say that the slats are shaped like REALLY long dowels for a Festool domino. I hope that helps explain what I’m trying to do.

This will be used to make a crib gate. I wanted the slats to be rounded over and I also didn’t want to use the “cut a dado, and fill the gaps with spacer block technique”. There is nothing wrong with that (as far as I can tell), I just wanted to put my own twist on things. I guess I could have used a drill press followed by a chisel to clear our the center, but thats a lot of handcut mortises and I’m on a deadline. Anyway, have a look at the photos. Basically the jig attaches to a plunge router base. you twist the router until both pegs ride along side of the board you are putting the groove in, and then plunge to make the cut.

If you want more details on the construction, just post and I’ll respond here. Hope you like it.