Rings of Light: Bending u-channel stock
I'm trying to make rings of brass with a channel/groove on the inside to fit LED strips into. I want the LEDs lining the inside of the brass rings to illuminate the center, but I want them hidden from view for aesthetic reasons. I'm trying to get 7 different rings, varying in diameter from about 7" to 2'. I can't figure out the best way to do this though.
Here are some possibilities I've come up with, and I would love your thoughts on their feasibility, how I might tweak them for better effectiveness, or if you all have other ideas that might work better!
1) Bend U-channel stock in a tube bender. Would this deform the u-channel, though, and can rectangular stock go through a bender?
2) Mill a small trench shallower than a standard u-channel into bar stock, then bend it. See concerns in #1.
3) Somehow mill a channel into bar stock once it's already bent..?
4) Bend hollow tubing into a ring, then use a cutting disc or bit on a dremel to cut an opening on the inside, and snake the LED strip through the tubing.
5) Bend hollow tubing into a ring, then drill out holes at the interval of the LED lights, and snake the LED strip through the tubing.
Thanks so much for your thoughts, feedback and help! :)