Stoned

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New baffles cut and glued up...

This stone is called "Blue Barracuda".... strange name, but it's gorgeous.

Layers are 15mm BB plywood, 6mm honeycombed aluminium and 6mm Blue Barracuda stone.
 

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materials assemblage

Hi there P: Fantastic assemblage of materials. Questions: Panel material adhesive (stone to Al to wood)? Edge joint adhesive? How will the cables attach through the assembled materials? Can hardly wait to read your posts about performance. ...regards, Michael
 
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Thanks guys!

Ok, some more infos...

Yes, the stone is from Brazil. We have access to stones from all over the world, I just fell in love when I saw a slab of that Blue Barracuda. I knew I had found something special.

The drivers will be a low end 15" woofer, and a 8" TB fullrange. I will try to get the 1808, otherwise, I might use the 1772 I already have, and cross a little higher. Sorry X! This set is not for the 10F combo you showed us. (PS. I'm thinking Japanese hinoki wood for a pair of 10Fs)

freddi, thanks for the link. I have searched a long time on the net for another company that could cut stone down to 6mm... this is the first time I see another... and nope, not related. I think we have the same ways of doing things. The stones are cut with water jets. And we can have a rough (they call it leather) finish or polished using buffing wheels.

Still some assembly required! 🙂
The finished product will be stone-alu-wood-alu-stone. We are using epoxy to glue the layers together. I let the stone factory glue the layers of stone to alu, but I'm doing the rest of assembly and gluing. There will be a frame running around the baffle, and at first, I thought of just running the wires along the inside of the frame, but maybe I could try to hide them inside the baffle sandwich construction.
 
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Been pouring rain all well... not really great for working.

I've weighted the panels.
Each baffle, with layers of stone-alu-plywood-alu-stone weighs about 13kg.

Adding a frame and drivers, I expect them to be around 20kg each.
 
Finally had a full 3 days without rain!

Fired up the table saw, cut and test fit of the frame. It still need to be sanded down, painted, and glued back

At least, things are moving... that's cool.
 

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