Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Sun May 11, 2025 5:59 pm


All times are UTC - 5 hours





Post new topic Reply to topic  [ 19 posts ] 
Author Message
 Post subject:
PostPosted: Tue Sep 12, 2006 1:18 am 
Offline
Walnut
Walnut

Joined: Fri Sep 01, 2006 12:32 pm
Posts: 23
Location: Canada
Hi, I'm new on the forums and at guitarmaking. People here seem to be an endless source of information, so maybe you can answer my present and future questions

Here's the deal. I'm in the process of making my first guitar ever and I didn't want to make it more difficult than it already is, so I bought an LMII serviced kit. My concerns are about the pre-bent sides, as I don't have a bending iron. During shipping, there was some springback. They can fit the mold with clamping pressure but I'm still wondering if there will be troubles with the tension build up when comes to time to assembly the whole thing. Any inputs?

Best regards,


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 2:31 am 
Offline
Koa
Koa
User avatar

Joined: Thu Oct 27, 2005 2:07 am
Posts: 815
Location: Olympia
First name: Mark
Last Name: Tripp
City: Olympia
State: Washington
Zip/Postal Code: 98506
Country: United States
Focus: Build
Status: Semi-pro
Hey Alexandre! Welcome to the OLF!

Hesh is spot on as usual!    

My first kit guitar, also from LMI, had similar issues. I didn't have a pipe bender, and hadn't discovered the forum yet, so I just spritzed the sides with water, heated them with a heat gun, and clamped them into the mold to cool and dry. That helped, but in retrospect, I probably didn't have to this, and could have just followed Hesh's advice.

-Mark

_________________
Pullman, WA

The more I know, the more I know I don't know.

trippguitars.com
OR
Find me on Facebook


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 2:33 am 
Offline
Walnut
Walnut

Joined: Fri Sep 01, 2006 12:32 pm
Posts: 23
Location: Canada
[QUOTE=Hesh1956]

If the force needed to make the sides follow the contor of the mold seems excessive to you with the potential for cracking a side touching up the sides on a bending iron would be advisable. If this is the case let us know and we can guide you through making an inexpensive bending iron out of a pipe and torch.

Welcome to the world of guitar building![/QUOTE]


Thanks for the warm welcome

Well I guess I'll be alright. I've left the sides in the mold for a few weeks (waiting for pre-carved neck that is being backordered) and I highly doubt they're ever going to crack.

As for the bending iron. I will probably need your guidance for a future guitar, next summer I guess.

Best regards,


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 3:58 am 
Offline
Koa
Koa
User avatar

Joined: Mon Sep 12, 2005 12:40 am
Posts: 1900
Location: Spokane, Washington
First name: Pat
Last Name: Foster
State: Eastern WA
Focus: Build
Welcome, Alexandre!

As you probably know already, this is the best forum on the planet!

I had the same issue with the sides on my LMI serviced OM kit. I did what Hesh suggested and all went well.

_________________
now known around here as Pat Foster
_________________
http://www.patfosterguitars.com


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 7:52 am 
Offline
Koa
Koa
User avatar

Joined: Fri Apr 08, 2005 2:44 am
Posts: 987
Location: United States
First name: Joe
Last Name: Breault
City: Merrimack
State: NH
Status: Amateur
Bienvenue Alexandre! As long as it fits the mold, you should be all set. Once you glue on the kerfed lining, you'll find that the sides keep their shape much better.

_________________
Joe Breault
Merrimack, NH
Perpetual novice


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 7:59 am 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Wed Jun 22, 2005 10:11 am
Posts: 2761
Location: Tampa Bay
First name: Dave
Last Name: Anderson
City: Clearwater
State: Florida
Zip/Postal Code: 33755
Country: United States
Welcome to the one and only OLF,Alexandre

_________________
Anderson Guitars
Clearwater,Fl. 33755


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 8:43 am 
Offline
Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
Everone is right here. If you bend a set of sides and do not confine them they will spring back no mater how well or how long they were cooked. The fibers want to go to natrual state. When you bend you disrupt some of the fiber structure so they will maintain most of the bent shape but a good portion of the fiber will want to relax back to their original orientation.

You have nearly 1" of play on most woods in the lower bout of a 16" Lower bout. now as the radius of a bend gets tighter the less play you have in that part of the bend. so on a typical upper bout you may have only 1/4"-1/2" of flex with out over stressing the wood.


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 1:15 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Tue Dec 20, 2005 7:46 am
Posts: 2227
Location: Canada
Welcome Alexandre!

I'll echo what was said here... If you want a little a little picture expose on cheap pipe and propane torch benders, let me know. I'll send you some pics. Mine cost me about 12$, and that's including the new propane torch!

Good luck!

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


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 1:43 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Thu Oct 06, 2005 1:05 pm
Posts: 3350
Location: Bakersville, NC
Focus: Build
Status: Professional
Alexandre, you came to the right place! I do feel its my position to advise you that guitar making IS extremely addictive and that this forum is contaminated with WAS!!

Welcome!!

_________________
Peter M.
Cornerstone Guitars
http://www.cornerstoneukes.com


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 1:56 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Sun Dec 25, 2005 6:32 am
Posts: 7774
Location: Canada
Salut Alexandre, Bienvenue a l'OLF !

Yup, the finest craftmen and craftwomen on the planet, helping and caring people you'll ever meet my friend and i'm proud to see another Quebecois on the forum!

I have built myself a side bender and use a heat blanket for my sides but the guys here are spot on with the pipe advice for starters, it will get you accustomed to feeling your wood and it will be useful even if you purchase or build a side bender later on your journey!

Have fun building and one more thing buddy, we love pics so share your progress as you go, weere a bunch of voyeurs!

Glad you found your way here!

Serge


Top
 Profile  
 
 Post subject:
PostPosted: Tue Sep 12, 2006 4:15 pm 
Offline
Koa
Koa

Joined: Sat Feb 11, 2006 10:40 am
Posts: 1286
Location: United States
Welcome!

ditto

Mike
White Oak, Texas


Top
 Profile  
 
 Post subject:
PostPosted: Wed Sep 13, 2006 4:35 am 
Offline
Walnut
Walnut

Joined: Fri Sep 01, 2006 12:32 pm
Posts: 23
Location: Canada
Thanks all for the warm welcome !
Merci Serge!

I'm currently building a Flamenco guitar based on Santos Herndandez 1933 Plans. I started in mid-August, but for now I can only work on the guitar on week-ends, thanks to university.

Here's a shot, will a lot of dust mind you , of my soundboard bracings. I'll be bracing the back next week-end if I have enough time.




Regards,


Top
 Profile  
 
 Post subject:
PostPosted: Wed Sep 13, 2006 4:41 am 
Offline
Walnut
Walnut

Joined: Mon Aug 21, 2006 10:04 am
Posts: 31
Location: USA
State: Vermont
Alexandre,

I had the same problem with an LMI kit that I am building. The sides went into the mould without much fuss, but they did have a lot of springback.

I am also a newcomer to guitar building and to this forum. The forum has already been very helpful to me. The people here have been VERY helpful and encouraging to a newcomer.

Matt


Top
 Profile  
 
 Post subject:
PostPosted: Wed Sep 13, 2006 7:28 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Sun Dec 25, 2005 6:32 am
Posts: 7774
Location: Canada
Alexandre, looks like you got the hang of it, neat bracing! You're off to a really good start my friend!

What kind of glue did you use? Titebond or Hot hide glue?

Serge


Top
 Profile  
 
 Post subject:
PostPosted: Wed Sep 13, 2006 8:51 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Jan 19, 2005 5:23 am
Posts: 2353
Location: United States
Bienvenido Alexandre!

When I bend my sides on a pipe by hand I want the waist bend to be right on and then the upper and lower bouts I want a bit open, kind of like spring back. This way I have to push the neck end and the end block end of the sides into the form. This allows the side to hold itself up against the form. Sometimes springback can work to your advantage. I imagine this is the case with the LMI pre bent sides you got.
Buena suerte!


Top
 Profile  
 
 Post subject:
PostPosted: Wed Sep 13, 2006 11:50 am 
Offline
Walnut
Walnut

Joined: Fri Sep 01, 2006 12:32 pm
Posts: 23
Location: Canada
[QUOTE=Serge Poirier] Alexandre, looks like you got the hang of it, neat bracing! You're off to a really good start my friend!

What kind of glue did you use? Titebond or Hot hide glue?

Serge[/QUOTE]


I used fish glue actually :) Some people mentionned it on a flamenco forum so I thought I couldn't be wrong with it.

But I don't know much about wood glues, especially for guitarmaking... any difference on tone?


Top
 Profile  
 
 Post subject:
PostPosted: Wed Sep 13, 2006 1:43 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Sun Dec 25, 2005 6:32 am
Posts: 7774
Location: Canada
HHG and the fish glue you used are the most seeked since they don't creep and supposedly help transfer the sound better but i'm not an expert on wood glues either, i used regular carpenter's glue and HHG on my no 2 and i just know that my guitar sounds really good but as far as telling if the joints will hold, only time will tell!

I'll let the other pros elaborate on Titebond or any other glues :-)

Serge


Top
 Profile  
 
 Post subject:
PostPosted: Wed Sep 13, 2006 6:21 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Tue Jan 04, 2005 10:03 am
Posts: 6680
Location: Abbotsford, BC Canada
Hello there Alexandre and welcome

Here is a link to a very inexpensive side bender, I'm sure you could get all of this stuff at a used builing supply house for under $5

Hope this helps with the bender anyway.

_________________
My Facebook Guitar Page

"There's really no wrong way, as long as the results are what's desired." Charles Fox

"We have to constantly remind ourselves what we're doing....No Luthier is putting a man on the moon!" Harry Fleishman

"Generosity is always different in the eye of the person who didn't receive anything, but who wanted some." Waddy Thomson


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 19 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 44 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