[COLOR="Sienna"]First time I have actually done this myself. Since vintage 18" bass drums are relatively hard to come by and quite pricey when you find one....I took a Keller 5-ply maple shell I had kickin' around from a previous Keller shell pack I won on eFlay a while back....and decided to "vintage-ize" it myself.
Bought 4 bass hoops from aitwood.com. A pair for bass hoops...and the other 2 for reinforcing rings.
Cut the 2 hoops diagonally and kept taking of pieces until it slipped in nicely to hug the inside of the shell. Then I slid in a thin, thin tension shim at the seam of the 2 cuts, to make sure it had good contact to the shell interior. Used 19 clamps and carpenters glue to secure it there....sanded everything down level; filled the small seam at the cut with filler.
I just routed the edges this afternoon (pics to come). 45 degree bevel interior, with a roundover exterior. Came out friggin' great ! Real, true, old-skool thin-ply bass drum.
I am sanding the interior and edges down to 220gr and am gonna apply a coat of Tung Oil tonight, then wrap 'er up tom'w (Tangerine Glitter).
She is matching up with a 8x12" Slingy Rack and a 12x14" Slingy FT (previously a marching tenor drum) to make a nice little bop kit (custom job for a client).
[/COLOR]