Quote Originally Posted by VolvoHeretic View Post
My latest version of the front baffle.

My idea of using flat rings of brass for the bass speaker and the 5"-9" dia. adjustable port grill cloth frames hit a snag. I have figured out that you could cut both rings out of the same piece of flat plate so you would need two for both speaker. A quick search found a place selling 24"x24"x1/8" 260 brass sheets, except the price is $400, so $800 total. They also sell 2'x2'x3/16 3003 aluminum for $30, I suppose it could be painted with a bronze finish.

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VolvoHeretic,

Great diagram, thank you. Interesting thought on brass rings, or, I thought of using removable port boards.

Also, for the curved back, I spent more time today trying (smaller boards and logs) on the cuts to make the joints. It is getting simpler, I initially took that as semi-circle and counted the number of boards (# 8) but the 22.5 degree cut (on the edges) didn't align to get the depth (26-1/2) and width. So, each piece edge requires different angle cut to align for this measurement. Not sure whether the CAD diagram can suggest the required angle for each board on both edges.
Now, I am planning to cut different angle edges (15, 22.5, 30 and other sizes) to try to get the right shape. Once I figure out the right angles, things can get better.

Thank you,
Sri