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L. Presnall
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PostPosted: Fri Dec 09, 2005 9:24 am 
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Lance, I was looking at the archives for advice about a bit to cut a bridge slot, and happened upon yours...could you elaborate a little on that thread/centerline trick of Kevin Ko's to check the bridge for skew? I have the centerline finder jig, but the skew always takes fiddling...

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Rod True
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PostPosted: Fri Dec 09, 2005 10:40 am 
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bump

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LanceK
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PostPosted: Fri Dec 09, 2005 11:02 am 
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Sure -
its pretty simple actually - you tape a piece of thread to the headstock face -ON CENTER- and then run it the length of the guitar and tape the other end to the butt end of the guitar, again on center, then, as you align the slew on your neck by removing wood from the bearing surface you can see the neck moving (tilting) back and forth on and off center by noting the string position. Its most evendent above the 12thfret.
All that said, I don't do this anymore, not since I got one of those slick center line finders that were offered here about a year ago.

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Pwoolson
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PostPosted: Fri Dec 09, 2005 11:13 am 
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Lance , what is the slick center line finder of which you speak? Pics?
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LanceK
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PostPosted: Fri Dec 09, 2005 11:20 am 
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LanceK
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PostPosted: Fri Dec 09, 2005 11:22 am 
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Here are two links about this jig

Link One

Link Two

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LanceK
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PostPosted: Fri Dec 09, 2005 11:24 am 
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Looks like Bob made 7 extra, ya might email him and see if he has any left?

bob@pittmanguitarrepair.com

Speaking of Bob, where has he been? Use to be pretty regular.

Bob!!!

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tl507362
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PostPosted: Fri Dec 09, 2005 11:39 am 
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Paul,
Bob quit making these because they were just too costly and not enough demand. I talked to Bob on the phone and he agreed to let me make these and sell them. He sent me all the plans necessary, but my partner just hasn't had time to complete the prototype. Work just keeps getting in the way. We have so many new jigs coming, and this is one of them. I'll tell him to get on this again so we can start selling them.
Tracy
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Pwoolson
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PostPosted: Fri Dec 09, 2005 11:39 am 
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That's just like mine except for the "clamps" that hold it securely to the neck. I like that idea. Mine has an actual nut that goes in the slot but it's a bit hard to hold it securely. I assume the "clamps" slide fore and aft to tighten or loosen. yes?
thanks for the pics. P
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LanceK
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PostPosted: Fri Dec 09, 2005 11:43 am 
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Yes, you are correct Paul. It works excellent.
Tracy - that is good news!

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PaulB
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PostPosted: Fri Dec 09, 2005 10:21 pm 
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Yes, good news indeed. I've been kicking myself ever since for not buying one.
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tl507362
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PostPosted: Sat Dec 10, 2005 6:30 am 
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I just got an email from my partner last night telling me he will work on this over the Christmas holidays. I hope to have something by Jan. Thanks for the interest!
Tracy
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L. Presnall
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PostPosted: Sat Dec 10, 2005 12:18 pm 
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Lance, I'm sorry! I was under the impression that we were speaking of skew...the corners of the bridge in relation to the say, 14th fret...ie, is the bridge perpendicular to the centerline of the guitar...I have the centerline finder as well, and agree it's great!    I just figured you knew yet another nifty trick that I haven't been bright enough to come up on by myself!

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LanceK
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PostPosted: Sat Dec 10, 2005 1:16 pm 
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oh!

Ya, I do use thread for that too -
Maybe this picture will s'plain






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j.Brown
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PostPosted: Sun Dec 11, 2005 3:11 am 
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In theory (geez, I hate it when people say that...almost as bad as "theoretically"), you should be able to use this same jig to set up your bridge. The measurement from the nut to the 12th is the same as the 12th to the leading edge of the saddle, right? So you should be able to use a small square on the straight edge and duplicate the measurement on the guitar top to at least mark that saddle line, then drop it back 3mm or so and get your perpendicular line for the front of bridge.
If thats wrong, please let me know.
-j.

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