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Old 27th September 2012, 11:01 PM   #21
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I really freaked out an experienced CNC operator with a cab that was, well it was a bit more involved than this one actually- compound angles are frequently terrifying even for quite experienced woodworkers, even with CNC machines!

What an awesome shape- I love it.
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Old 27th September 2012, 11:05 PM   #22
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It should be very stable and i find it logical. Thanks that you like it.
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Old 27th September 2012, 11:11 PM   #23
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Given the lengths of the edges, that can't be covered with a plain sheet. You would have to bend it.
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Old 27th September 2012, 11:51 PM   #24
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Yes, a plain single sheet is nearly impossible. Strange, at first i thought it could be done.
Usually ideas like that come to me in the morning when i wake up. Is it so bad that i even design in my dreams ?
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Old 28th September 2012, 12:01 AM   #25
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That's a logical extension to "carpe diem"
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Old 28th September 2012, 12:41 AM   #26
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Some years ago i designed the Sonics Aquilla that has also a slanted baffle that got more narrow to the top. Here the sides are bend so Holger is right.I called that "Butterfly".
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Old 28th September 2012, 11:18 PM   #27
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Is "the Butterfly" a transmission line? Is the taper part of that design approach too?
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Old 29th September 2012, 12:29 AM   #28
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No, it is a bass reflex, tube to the back. I thought that an inwards bend is more stable to inside pressure then the more usual outside bend like popularized by Sonus Faber.
Like a water dam that is bend against the water. The cabinet gets more narrow to the top and is angled by 7. That gives a measure of delay alignment and reduces diffraction effects.
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Old 29th September 2012, 01:42 AM   #29
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Why doesn't it act as an organ pipe? Or does it (it must, right?) and you're compensating for that somehow? I've been trying to make a tall bass reflex like that and coming to terms with the organ pipe issues, in theory, anyway...

I just now noticed the curved wood. Wow! I'd think they're would be a couple hot spots on either side where the convex surface focuses the sound at some frequency or another.
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Old 29th September 2012, 08:56 AM   #30
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The Aquilla is vertically divided into three damped chamber so the vertical resonance is suppressed. The cabinets have being manufactured by Hornslet in Denmark. They have a patent on bended or curved cabinets. Actually they are not easy to manufacture.
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