Official Luthiers Forum!

Solely owned and operated by Lance Kragenbrink
It is currently Fri Sep 18, 2020 9:01 am


All times are UTC - 5 hours





Post new topic Reply to topic  [ 6 posts ] 
Author Message
PostPosted: Sat Nov 23, 2019 4:54 pm 
Offline
Koa
Koa
User avatar

Joined: Wed Jan 14, 2009 3:14 am
Posts: 810
Location: Shefford, Québec
First name: Tim
Last Name: Mullin
City: Shefford
State: QC
Zip/Postal Code: J2M 1R5
Country: Canada
Focus: Build
Status: Professional
I’m cobbling together a P-bass style body for a client to assemble. The Stewmac fretlocation tool tells me that the screws on a “Fender style” bridge should be located at 35”. I’m using a Gotoh 203b-4 bridge. Doesn’t look like a lot of compensation, so I thought I should ask — what’s typical compensation on a well-intonated P-bass.


Sent from my iPad using Tapatalk


Top
 Profile  
 
PostPosted: Sun Nov 24, 2019 10:46 am 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Sat May 22, 2010 10:32 am
Posts: 2614
First name: alan
Last Name: stassforth
City: Santa Rosa
State: ca
Zip/Postal Code: 95404
Country: usa
Focus: Build
Status: Amateur
I usually take the bridge, find the center of the bridge adjustment,
figure out, or look at a chart (Stew Mac?) to find the compensation,
set the bridge, then dial it in.
Alan


Top
 Profile  
 
PostPosted: Sun Nov 24, 2019 11:58 am 
Offline
Koa
Koa

Joined: Thu Nov 04, 2010 1:46 pm
Posts: 1874
First name: Freeman
Last Name: Keller
Focus: Build
Status: Amateur
https://www.liutaiomottola.com/formulae ... sation.htm


Top
 Profile  
 
PostPosted: Wed Nov 27, 2019 12:57 pm 
Offline
Koa
Koa
User avatar

Joined: Wed Jan 14, 2009 3:14 am
Posts: 810
Location: Shefford, Québec
First name: Tim
Last Name: Mullin
City: Shefford
State: QC
Zip/Postal Code: J2M 1R5
Country: Canada
Focus: Build
Status: Professional
Quite familiar with both the Stewmac calculator, as well as that by Mottola. The former doesn't give compensation for electric basses, and the latter is geared for acoustic bass strings. In fact, I have a calculator similar to that by Mottola, but I also don't have the parameters for electric bass strings.

I was kinda hoping someone with a precision bass would simply plonk a ruler on it. Perhaps none of our active members have one they can measure.

I am 90% confident in the information I've generated, but would just feel more comfortable with an empirical measurement before I start drilling holes!


Top
 Profile  
 
PostPosted: Sun Dec 08, 2019 2:49 pm 
Offline
Mahogany
Mahogany
User avatar

Joined: Wed Dec 02, 2015 4:43 pm
Posts: 51
Location: Staten Island, NY
First name: David
Last Name: Schwab
City: Staten Island
State: NY
Zip/Postal Code: 10201
Country: USA
Focus: Build
Status: Professional
The 35” that StewMac cite is the location of the mounting screws.

Does the Gotoh bridge have the mounting screws in the same location? If it’s a drop in replacement it should.

You shouldn’t need more than 1/4” rearward travel from 34”. I checked one of my basses just now and none of the saddles are even that far back.

Of course that depends on your action. Higher action requires the saddles to move farther back to flatten the pitch caused by the string being pushed down to the fret. But no one likes their action high anyway. [SMILING FACE WITH OPEN MOUTH AND SMILING EYES]


Sent from my iPhone using Tapatalk



These users thanked the author DavidSchwab for the post: Tim Mullin (Sun Dec 08, 2019 8:55 pm)
Top
 Profile  
 
PostPosted: Sun Dec 08, 2019 8:59 pm 
Offline
Koa
Koa
User avatar

Joined: Wed Jan 14, 2009 3:14 am
Posts: 810
Location: Shefford, Québec
First name: Tim
Last Name: Mullin
City: Shefford
State: QC
Zip/Postal Code: J2M 1R5
Country: Canada
Focus: Build
Status: Professional
DavidSchwab wrote:
The 35” that StewMac cite is the location of the mounting screws.

Does the Gotoh bridge have the mounting screws in the same location? If it’s a drop in replacement it should.

You shouldn’t need more than 1/4” rearward travel from 34”. I checked one of my basses just now and none of the saddles are even that far back.

Of course that depends on your action. Higher action requires the saddles to move farther back to flatten the pitch caused by the string being pushed down to the fret. But no one likes their action high anyway. [SMILING FACE WITH OPEN MOUTH AND SMILING EYES]


Sent from my iPhone using Tapatalk

That’s very helpful, David — thanks! You’ve confirmed what I pretty much figured was the case. It makes sense that the Gotoh bridge is a drop in replacement for a Fender bass, and locating the screws at 35” gives compensation up to 3/8”, maybe more. Strange that this is how the SM calculator expresses compensation, but maybe most/all bass bridges have their screws at scale + 1”.


Sent from my iPad using Tapatalk



These users thanked the author Tim Mullin for the post: DavidSchwab (Thu Dec 19, 2019 3:30 pm)
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 10 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