Use a chamfer bit
If I understand what you are doing:
You have bead molding that you want to cut a "V" into the edge, not the face or back, of the molding so that the shelf channel is exposed and you can slide the shelf in and out or just look good; either way. Do I have it?
If so I think you can set up a jig with a router and a grooving bit to get this effect. You could then cut multiple strips of molding at one time for mass production. I did something like this for a bottle rack I created were I had to cut about 30 channels. You can buy grooving bits in several different angles and types to match the angle you are cutting your shelf edge to.
Last edited by Chris_Old_House; 09-26-2008 at 11:34 PM.
Reason: used the wrong bit name: should be grooving bit