Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Mon Nov 25, 2024 4:10 am


All times are UTC - 5 hours





Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post subject: Bowed Neck
PostPosted: Fri May 07, 2021 8:55 am 
Offline
Walnut
Walnut

Joined: Sat Feb 27, 2021 5:05 pm
Posts: 18
First name: Corey
State: MI
Country: United States
Focus: Build
Status: Amateur
I'm working on a Tele Build for my daughter. I did a two piece neck and head stock with a scarfed joint as suggested here. After routing and getting it sanded I noticed the neck has a bow to it. If it was complete with truss rod and fretboard it wouldnt be a big deal as I could simply adjust it. Any ideas to get this straight before I continue installing the truss rod and fretboard? Pics file size are too big on my phone to attach, but from end to end there's probably a good 1 to 2mm bow.


Top
 Profile  
 
 Post subject: Re: Bowed Neck
PostPosted: Sat May 08, 2021 2:27 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Jan 05, 2005 6:25 pm
Posts: 2749
Location: Netherlands
Plane it flat.


Sent from my iPhone using Tapatalk Pro


Top
 Profile  
 
 Post subject: Re: Bowed Neck
PostPosted: Sat May 08, 2021 5:24 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Thu Nov 04, 2010 1:46 pm
Posts: 2150
First name: Freeman
Last Name: Keller
Focus: Build
Status: Amateur
A scarfed head is very hard to jig up so it doesn't shift while you are gluing it - the glue acts as a lubricant and you have perfect high school physics demonstration of a wedge. Its not uncommon for the head to be shifted slightly with respect to the neck stick itself. I just use a long sanding beam or a carpenter's level with double stick tape on it to sand the fretboard surface perfectly flat before gluing the f/b on.

I don't want to have to use the truss rod to do any correction to the neck - it should be adjusted to neutral and the neck should be straight.



These users thanked the author Freeman for the post: fumblefinger (Sat May 08, 2021 8:29 pm)
Top
 Profile  
 
 Post subject: Re: Bowed Neck
PostPosted: Thu May 20, 2021 3:40 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Jan 05, 2005 6:25 pm
Posts: 2749
Location: Netherlands
Freeman wrote:
A scarfed head is very hard to jig up so it doesn't shift while you are gluing it - the glue acts as a lubricant and you have perfect high school physics demonstration of a wedge. Its not uncommon for the head to be shifted slightly with respect to the neck stick itself. I just use a long sanding beam or a carpenter's level with double stick tape on it to sand the fretboard surface perfectly flat before gluing the f/b on.


I find gluing a scarfed head is actually pretty simple with the assistance of some tape like StewMac’s binding tape. Clamp it dry, apply the tape (two layers) firmly (stretching it across the joint). If you don’t overdo the amount of titebond, it’s enough to keep it all aligned until the glue grabs while you clamp. A bit of extra insurance for horizontal alignment is provided by clamping the neck shaft down to a flat surface with the fingerboard plane perpendicular to it.

That, or drill two small holes and use a couple of toothpicks in the waste areas.



Sent from my iPhone using Tapatalk Pro


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 39 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:  
cron
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com