Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Tue Dec 03, 2024 3:26 pm


All times are UTC - 5 hours





Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject:
PostPosted: Fri Aug 17, 2007 5:59 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Jan 05, 2005 6:25 pm
Posts: 2749
Location: Netherlands
Quick question:

I've got some wood cavity covers for an electric project (resawn off the back, so they'll match) that I want to reinforce and sheild in one combined action by laminating a piece of sheet metal (steel or copper, glued with epoxy or polyurethane, probably epoxy) on the back. What I'm worried about is the potential for warping; should I laminate a metal sheet between two slices of similar-sized, same species wood, or will simply backing it be ok?

Wood's Khaya, in case anyone's wondering, and this is the guitar it's fo:



Top
 Profile  
 
 Post subject:
PostPosted: Fri Aug 17, 2007 11:36 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Tue Dec 20, 2005 7:46 am
Posts: 2227
Location: Canada
Mattia, superb axe! That thing is already screaming 'SHRED!!!'...

I've never done it so take my advice for what it's worth, but since epoxy has no water, I wouldn't be worried about warping.

How thick does the final piece have to be??? If you can spare the time and materials, just double it up to be on the safe side but I'm pretty sure you wouldn't need to.

Is this a personal guitar? What color is that beast going to be?

_________________
I'd like to be able to prove, just for once, that money wouldn't make me happy...


Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 18, 2007 6:29 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Jan 05, 2005 6:25 pm
Posts: 2749
Location: Netherlands
Thanks!

Thickness should end up around 1/8" or so, just covers for the rear spring cavity and control cavity. The thing I'm worried about is expansion differences; wood will move, metal, less so, so I may just go for wood on boths sides just in case. Easy enough to leave little more than a veneer on there.

And no, it's not a personal guitar; I'm a regular ol' righty, me. That one's for my girlfriend's brother, who's a bit of a metalhead. It's going to get a red-to-black burst eventually.



Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 18, 2007 2:09 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Jan 05, 2005 3:45 pm
Posts: 4337
Location: United States
Mattia-- great work so far!
Say, could you just epoxy some type of copper foil on the back of the cover? Something so light that expansion rates wouldn't be a problem?
You can get that in the Netherlands, no?
If not, you could pound some pennies r-e-a-l thin, and stick 'em on there.
And just charge more.   

Keep us posted,

Steve

_________________
From Nacogdoches...the oldest town in Texas.

http://www.stephenkinnaird.com


Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 18, 2007 2:49 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Thu Mar 01, 2007 3:15 pm
Posts: 2302
Location: Florida

Nice axe Mattia!  What knd of pickups are you planning for the beast??  humbuckers I hope


 


_________________
Reguards,

Ken H


Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 18, 2007 5:28 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Jan 05, 2005 6:25 pm
Posts: 2749
Location: Netherlands
Steve: strength is also part of the issue; I'm not sure I trust mahogany to take much/any abuse, and this is going to be a gigging instrument. Although I suppose .3mm (.011") copper or brass shouldn't affect things too much, if glued with a slightly flexible epoxy. Will make a test sample and hang it up somewhere wet.

Ken: humbuckers, obviously. DiMarzio DropSonic and an Evo, I think (he supplied them). I don't usually build pointy guitars - this is actually my first - but it is kinda growing on me.


Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 18, 2007 5:32 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Jan 05, 2005 3:45 pm
Posts: 4337
Location: United States
Mattia, I did a cavity cover w/ 1/8" mahog (which matched the body wood) laminated to some really thin plywood, and the two together were quite stiff.

Just another thought...

Looking forward to the "color" shots!

Steve

_________________
From Nacogdoches...the oldest town in Texas.

http://www.stephenkinnaird.com


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 28 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com