Last month's Baritone 12 string really blew my mind:  
 
http://www.alembicguitars.net/info/fc_leo12.html  
 
I imagine a 6 X 12 string double neck with both necks 30 scale baritones. Same body style as that custom.
Purpleheart body with Macassar Ebony top and back bookmatched to center, continuous wood everything (including pickups).
Purpleheart necks with ebony laminates......
 
(Message edited by rami on March 21, 2008)

Do it Rami! Do it!!
 
Seriously though, that would be incredibly cool and probably close to 30lbs I'd imagine.
 
(Message edited by tbrannon on March 21, 2008)

I want to...so, so, so badly!!!! I've never stared as obsessively at a featured custom as I have at this one:
 
http://www.alembicguitars.net/info/fc_leo12.html  
 
Nor have I ever been as tempted......
 
But there's the daunting thought of what it would cost!
 
YIKES!!!!!
 
(:0
 
P.S. I don't usually share my design thoughts out of a mortal fear that somebody else might actually build it - but since I know that It's beyond my means, hopefully someone will build it so I can buy it used sometime down the road!
 
Um....  I think I'll just sit here and hold my breath waiting for that to happen....
 

 
(Message edited by rami on March 21, 2008)

Something like this? (quick PaintShopPro job)

VERY NICE!!!
 
But I'd make the necks more parallel with the headstocks as close together as possible.  The 12 string on top and a 6 string below.  Of course, different woods and other options and electronics.    But that's a nice visual starting point!
 
(Message edited by rami on March 24, 2008)

It has a 5 degree angle between the necks.
 
With that you get good clearence between the necks and the tailpiece can be made as one single piece. And the body gets slightly narrower.
 
The necks should be closer to each other. (I said it was a quick job)
 
Spent more time on this earlier experiment.
 

 
On this it's the pickups that dictates the width, they get close to each other.

Am am I I seeing seeing double? double?

Crap!
No matter how hard I try, I can't get it to double post!!!

DAMN!!! That's nice!!!!!  I think that's one of Valentino's babies.

Yep. It's indeed Bird of Pray. A bit modified.
 
I'm using that basic shape for a design I'm drawing in Autocad, but the necks are different, unlike BoP they are fretted.
Upper neck is a 36 6-string low F and the lower neck is a direct copy of 8 strings of Power.

Here is what I have at the moment, the pistolgrip needs some work, I'm not satisfied with the omegas, and I must finish the strings.
 

I'm also designing a singelneck, based on the Essence 6 body, even more streched upper horn, and a flatted omega. The omega is possible due to the fingerboard having 31 frets, it's 70mm longer than the standard 24 frets. Thus the entire system, (pups,bridge,tailpiece, etc.), is moved out that much making room for an omega. The strings are not finished and I think I'm gonna redesign the pickups.
 

Wow.  Just amazing!  Are these simply concepts, or are you actually planning to build them?

Cool looking ideas.  That double neck 6 / 8 string bass would be amazingly heavy... wow.

Rob,
Love the designs!
Are you working in 3D in Autocad?
Really nice renderings, great work.
What version Acad are you running?
I have some Acad experience and also some metal working exp too.  
Kris