Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Thu Mar 28, 2024 12:47 pm


All times are UTC - 5 hours


Forum rules


Be nice, no cussin and enjoy!




Post new topic Reply to topic  [ 14 posts ] 
Author Message
 Post subject: bridge slots , 12-string
PostPosted: Fri Oct 16, 2020 12:42 pm 
Offline
Koa
Koa

Joined: Mon Feb 13, 2012 8:49 pm
Posts: 951
First name: peter
Last Name: havriluk
City: granby
State: ct
Zip/Postal Code: 06035
Country: usa
Focus: Build
Status: Amateur
I intend to use 6 pins on my 12-string project, and slot the bridge. Each main/octave pair will be on one pin. Traffic jam. I think I want to make the slots deep enough to accommodate the strings one in front of the other, the slot being wide enough for one and long enough for two.

I don't have any experience to call on. Any comments/thoughts to share?

Thanks!

_________________
Peter Havriluk


Top
 Profile  
 
PostPosted: Fri Oct 16, 2020 1:36 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Mon Aug 23, 2010 11:42 pm
Posts: 1701
First name: John
Last Name: Parchem
City: Seattle
State: Wa
Zip/Postal Code: 98177
Country: USA
Focus: Build
Status: Amateur
I had two strings per pin on a 12 string guitar. I did not stack them rather I put them side by side. It turned out easy to string up. When cutting the slots make them perpendicular to the tangents. (Basically aimed at the center)

Image

There is a description in a documented 12 string build of mine.

http://harvestmoonguitars.com/angel12string2.htm

_________________
http://www.Harvestmoonguitars.com


Top
 Profile  
 
PostPosted: Fri Oct 16, 2020 2:16 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Sun Mar 30, 2008 8:20 am
Posts: 5924
V V V V V V
O O O O O O

I'm not very good at ascii art, but hopefully the idea comes across - I angle the slots from the center of the pin hole away from each other. Try to make the slots long enough so the ball ends don't interfere with each other, and so you can change either string without disturbing the other. Some old violin tail pieces are made that way.


Top
 Profile  
 
PostPosted: Fri Oct 16, 2020 11:46 pm 
Offline
Koa
Koa

Joined: Mon Feb 13, 2012 8:49 pm
Posts: 951
First name: peter
Last Name: havriluk
City: granby
State: ct
Zip/Postal Code: 06035
Country: usa
Focus: Build
Status: Amateur
John, thanks for offering the link to your web site. But I had no joy getting the link to work. 'Service unavailable' errors. Server on strike? This seems to be a corollary of no good deed goes unpunished...

_________________
Peter Havriluk


Top
 Profile  
 
PostPosted: Sat Oct 17, 2020 1:51 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sat Jan 31, 2009 8:50 pm
Posts: 2246
Location: Seattle WA
Focus: Build
Status: Semi-pro
I did one 12-string that way and cut the slots about 11:00 and 1:00 o'clock. Worked pretty good.

Pat

_________________
Pat


Top
 Profile  
 
PostPosted: Sat Oct 17, 2020 8:20 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Mon Aug 23, 2010 11:42 pm
Posts: 1701
First name: John
Last Name: Parchem
City: Seattle
State: Wa
Zip/Postal Code: 98177
Country: USA
Focus: Build
Status: Amateur
phavriluk wrote:
John, thanks for offering the link to your web site. But I had no joy getting the link to work. 'Service unavailable' errors. Server on strike? This seems to be a corollary of no good deed goes unpunished...


Thanks

Thanks for the heads up on the server. I really need to change providers but it is such a pain. The advise of 11:00 and 1:00 is good advise. The slots do not need to be deeper than what you normally would have when not using slotted pins. My 12 string was falcate braced so there was no room for 12 holes without hitting a brace. Now I prefer the look as well.

_________________
http://www.Harvestmoonguitars.com



These users thanked the author johnparchem for the post: Michaeldc (Sat Oct 17, 2020 8:39 am)
Top
 Profile  
 
PostPosted: Sat Oct 17, 2020 10:06 am 
Offline
Koa
Koa

Joined: Mon Feb 13, 2012 8:49 pm
Posts: 951
First name: peter
Last Name: havriluk
City: granby
State: ct
Zip/Postal Code: 06035
Country: usa
Focus: Build
Status: Amateur
Thanks, everybody. A wonderful symposium! I need to see what my uncooperative hands allow me to do. Being precise with the bridge slots will be something to work up to quite carefully.

_________________
Peter Havriluk


Top
 Profile  
 
PostPosted: Sat Oct 17, 2020 11:31 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Thu Nov 04, 2010 1:46 pm
Posts: 2124
First name: Freeman
Last Name: Keller
Focus: Build
Status: Amateur
I have not built a 12 string with six pins but I have made one with a tail piece and put very shallow slots in the saddle to set the spacing,


Top
 Profile  
 
PostPosted: Sun Oct 18, 2020 2:07 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sat Jan 31, 2009 8:50 pm
Posts: 2246
Location: Seattle WA
Focus: Build
Status: Semi-pro
Pretty basic, just eyeballed it.Image

Pat

_________________
Pat


Top
 Profile  
 
PostPosted: Mon Oct 19, 2020 4:34 pm 
Offline
Koa
Koa

Joined: Mon Feb 13, 2012 8:49 pm
Posts: 951
First name: peter
Last Name: havriluk
City: granby
State: ct
Zip/Postal Code: 06035
Country: usa
Focus: Build
Status: Amateur
Pat, thanks. The string slots are as clear as can be. Even I can male them out. I think, too, that they illustrate John's comment about orientation.

About that saddle....?

_________________
Peter Havriluk


Top
 Profile  
 
PostPosted: Mon Oct 19, 2020 10:45 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sat Jan 31, 2009 8:50 pm
Posts: 2246
Location: Seattle WA
Focus: Build
Status: Semi-pro
phavriluk wrote:
Pat, thanks. The string slots are as clear as can be. Even I can male them out. I think, too, that they illustrate John's comment about orientation.

About that saddle....?
African blackwood. It's a true rosewood, very hard and dense.

Pat

_________________
Pat


Top
 Profile  
 
PostPosted: Tue Oct 20, 2020 6:41 am 
Offline
Cocobolo
Cocobolo

Joined: Wed Jan 08, 2020 12:28 pm
Posts: 188
First name: Chuck
Last Name: Skarsaune
City: Butler
State: TN
Country: United States
Focus: Build
Status: Amateur
Pmaj7 wrote:
phavriluk wrote:
Pat, thanks. The string slots are as clear as can be. Even I can male them out. I think, too, that they illustrate John's comment about orientation.

About that saddle....?
African blackwood. It's a true rosewood, very hard and dense.

Pat



Unison high E and B, octave pairs otherwise, with the higher string being towards the treble side? IE normal 12 string.

Neat to see how the compensation worked out. What was your method for working it out - did you calculate it, eyeball, cut and try?


Top
 Profile  
 
PostPosted: Tue Oct 20, 2020 11:59 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sat Jan 31, 2009 8:50 pm
Posts: 2246
Location: Seattle WA
Focus: Build
Status: Semi-pro
I made sure the fundamentals were where I normally put them, then kind of eyeballed the others. I might have looked at some pictures. Turned out great.

Pat

_________________
Pat



These users thanked the author Pmaj7 for the post: Skarsaune (Tue Oct 20, 2020 6:42 pm)
Top
 Profile  
 
PostPosted: Tue Oct 20, 2020 5:03 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sat Jan 31, 2009 8:50 pm
Posts: 2246
Location: Seattle WA
Focus: Build
Status: Semi-pro
Skarsaune wrote:
Pmaj7 wrote:
phavriluk wrote:
Pat, thanks. The string slots are as clear as can be. Even I can male them out. I think, too, that they illustrate John's comment about orientation.

About that saddle....?
African blackwood. It's a true rosewood, very hard and dense.

Pat
with the higher string being towards the treble side? IE normal 12 string.


Sorry, didn't catch that question. No, the smaller string is toward the bass side, which is what I believe a normal 12 string configuration is.

Pat

_________________
Pat



These users thanked the author Pmaj7 for the post: Skarsaune (Tue Oct 20, 2020 6:42 pm)
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 14 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: meddlingfool and 50 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