Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Wed Nov 27, 2024 8:29 am


All times are UTC - 5 hours





Post new topic Reply to topic  [ 11 posts ] 
Author Message
 Post subject:
PostPosted: Wed Oct 10, 2007 9:35 am 
Offline
Mahogany
Mahogany

Joined: Sat Mar 10, 2007 1:36 pm
Posts: 69
Location: lockport ,il
whats the easiest way to shape those blocks to the contuor of the body? so far i just tried putting sand paper in the mold and sand away till it there. is there an easier way? thanks


Top
 Profile  
 
 Post subject:
PostPosted: Wed Oct 10, 2007 10:04 am 
Offline
Koa
Koa

Joined: Mon May 09, 2005 1:41 am
Posts: 1157
Location: Siloam Springs, AR
Here's an idea I stole directly from Harry Fleishman, works pretty slickly. It requires a 12" disk sander and you make a new table for it with a metal lip for pattern sanding.


_________________
______________________________
Jonathan Kendall, Siloam Springs AR


Top
 Profile  
 
 Post subject:
PostPosted: Wed Oct 10, 2007 10:27 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
That's a slick method.

I use a plane, then touch up with sandpaper face up on the bench.



Perhaps not quite as accurate, but it works well for me. Plus I like using the old tools.

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


Top
 Profile  
 
 Post subject:
PostPosted: Wed Oct 10, 2007 10:52 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
Chris,

I think the base of Harry's jig can be any shape, if I'm not mistaken. It doesn't rotate from a pivot, but butts up against the little fence next to the disk, so the curve of the base is duplicated on the block. Sort of a dupli-sander.

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


Top
 Profile  
 
 Post subject:
PostPosted: Wed Oct 10, 2007 11:14 am 
Offline
Koa
Koa

Joined: Mon May 09, 2005 1:41 am
Posts: 1157
Location: Siloam Springs, AR
Yeah, you just make a template for each guitar. I just glued down a photocopy of the plan I was working from and cut to the line. That is a downside, that you have to have two patterns for each shape of guitar you build. They're easy to make, though.

_________________
______________________________
Jonathan Kendall, Siloam Springs AR


Top
 Profile  
 
 Post subject:
PostPosted: Wed Oct 10, 2007 1:25 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Thu May 12, 2005 5:46 am
Posts: 2968
Location: United States
I also do mine like Pat above.

_________________
Jim Watts
http://jameswattsguitars.com


Top
 Profile  
 
 Post subject:
PostPosted: Wed Oct 10, 2007 1:26 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Wed Feb 01, 2006 3:25 am
Posts: 3788
Location: Russellville, Arkansas
I place a square block into the mold and check the center gap. Then I run my pencil down each edge of the block that amount. I have the center marked on each end.

Walking over to the benchtop sander 4 x 36 Delta, I sand down to the line on each side with a slight rocking motion. Not rocket science, and easy to do. The Titebond does the rest.....

I like the methods shown above though, really nice guys.

_________________
http://www.dickeyguitars.com


Top
 Profile  
 
 Post subject:
PostPosted: Wed Oct 10, 2007 8:47 pm 
Offline
Cocobolo
Cocobolo

Joined: Tue Dec 12, 2006 11:26 pm
Posts: 201
Location: United Kingdom
Mark the curve off the mold onto the block, and rough it out (either a power sander or plane)
I then stick sandpaper inside the mold in the correct spot and use the mold itself as a curved caul, they fit perfectly every time! Only works if you build in deep molds though....


Top
 Profile  
 
 Post subject:
PostPosted: Wed Oct 10, 2007 9:34 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Aug 26, 2005 5:49 pm
Posts: 2915
Location: Norway
I do it like jammy, but I stick the sand paper on the inside of the guitar rim itself for fine tuning of the fit; this ensures a good match between the surfaces, and the height of the mold does not come into the equation.

_________________
Rian Gitar og Mandolin


Top
 Profile  
 
 Post subject:
PostPosted: Wed Oct 10, 2007 11:01 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Sep 09, 2005 7:51 am
Posts: 3786
Location: Canada
I make them all freehand on the disc sander, but have been meaning to make a jig like Harry's for a while - no time !!!!

_________________
Tony Karol
www.karol-guitars.com
"let my passion .. fulfill yours"


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 36 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