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PostPosted: Mon Nov 27, 2006 6:20 am 
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Brazilian Rosewood
Brazilian Rosewood
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Joined: Thu Jan 06, 2005 7:29 am
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Location: England
Every operation I'm doing on this current build, I'm questioning if I'm doing it this way because that's the best, or just because that's how I've always done it. (should ask this of myself everytime).

So, I've always seated my saddles 5mm into the bridge (about 3/16").   What do other people do, and of course why?

Colin

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PostPosted: Mon Nov 27, 2006 6:34 am 
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Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
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Location: United States
Collin mine are .250" or 6.35mm deep but they are steel string and my bridge is .380" or 9.5 mm deep


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PostPosted: Mon Nov 27, 2006 6:35 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Mon Feb 21, 2005 6:16 am
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Location: United States
First name: michael
Last Name: mcclain
City: pendleton
State: sc
Zip/Postal Code: 29670
Status: Professional
in my ideal world i like my slot depth to be no more than 1/2 the thickness of the bridge and at least 1/2 the height of the saddle.


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PostPosted: Mon Nov 27, 2006 8:02 am 
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Cocobolo
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Joined: Fri Sep 02, 2005 2:44 am
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Location: Sweden
[QUOTE=Hesh1956] Colin I do what Michael P. does. I am looking for 2/3 of the tree , so-to-speak, to be below ground.

1/4" saddle slot shooting for 1/8" saddle above the bridge

I noticed that a commercial bridge (Stew-Mac) has a 6/32" saddle slot depth.

[/QUOTE]

Thats exactly what i shoot for too, so I usually end up around 7mm.


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PostPosted: Mon Nov 27, 2006 8:36 am 
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Contributing Member
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Joined: Mon Jan 03, 2005 7:40 am
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First name: John
Last Name: How
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Mine usually run about 1/4" deep for a bridge that's just over 5/16" tall

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PostPosted: Mon Nov 27, 2006 9:31 am 
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Koa
Koa

Joined: Fri Sep 30, 2005 10:33 pm
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Location: United States
I do mine about like John H.

Greg

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PostPosted: Tue Nov 28, 2006 1:31 am 
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Brazilian Rosewood
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Joined: Mon Dec 27, 2004 3:50 pm
Posts: 4662
Location: Napa, CA
My bridges are around .350" high. My 1/8" wide saddle slot is routed to a depth of around .220" and I rout it with a 7* back angle. I have not yet completed one with the angled saddle but lots of the alpha builders like Paul Woolson, Mario, et.al. do this as well. Why...because it pushes the saddle in the direction that the strings want it to go. It also eliminates the lateral force that conspires to split the front of the bridge.

One issue I've been trying to solve is with the saddle slot width. Using a 1/8" spiral bit on the laminate trimmer, I take about 4 passes to get to depth. As such, I always have a sloppy fit with a saddle blank and have now had to use oversize blanks and sand down to get a tight fit. I was wondering if there are spiral bits available that are slightly under 1/8" with the idea that it could ultimately produce the proper width for a 1/8" saddle blank. I have lots of 1/8" blanks and would like to be able to use them.

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http://www.DonohueGuitars.com


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PostPosted: Tue Nov 28, 2006 7:00 am 
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Koa
Koa

Joined: Sun Feb 26, 2006 10:21 pm
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Location: Australia
JJ, you could try one less pass with the router bit and then sand out the slot to a tight fit. I use a straight cutter and then if the fit is too tight I run a cabinet scraper with wet and dry wrapped around it through the slot a few times until I get a tight fit with the saddle.


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PostPosted: Tue Nov 28, 2006 7:28 am 
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Location: United States
First name: John
Last Name: How
City: Auburn
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I use a laminate trimmer (PC) and a 1/4" shank bit with a 1/8" 2 flute spiral cutter (don't remember if it's up or down cut) and make the 1/4" deep cut all in one pass. Actually I go down and back but without adjusting the bit depth and that is it. I get a nice tight fit, in fact often I have to slightly sand the saddle thickness to get it into the slot.

JJ, I don't know what kind of guide you are using, I think you've seen mine, I try to make sure that I apply pressure to the router in such a way as to keep it tight against the same side of the guide in both directions ensuring that it follows the exact same path down the guide as back. I would think your laminate trimmer should be able to make this cut all in one pass and that should tighten things up.John How39049.6500694444

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