Making mantel clock--need advice on routing groove into frame for glass insert
Newbie here; perhaps I can get some advice on a woodworking project I have. About 13 years ago, while taking a non-credit Building Trades course, I had the opportunity to make several woodworking projects, one of which was a mantel clock. I made the clock with all cherry wood, and it has been sitting in storage for all these years. I now want to finally finish this project, but one of the things I need to do is install glass in a hinged frame that will be on the front of the clock. The frame is square, with 11/16" depth stock, fluted 1/4" in (I used a router) from the front. In order to install the glass on the inside of the frame, I will need to cut a notch around the inside, using my router, of course. Any suggestions on how to do that? Will I be able to find a router bit that has a guide, or will I need to make a jig? I have a router and a portable router table, but never used that table before. Please note that the frame is already assembled. I would also like advice on how I should attach the glass. Should I just glue it in, use push-pins, or do something else?
Thanks in advance for any advice.