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Mark Tripp
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PostPosted: Mon Jul 24, 2006 1:28 am 
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Here's a hanger bolt:



-Mark

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D Stewart
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PostPosted: Mon Jul 24, 2006 2:03 am 
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Thanks Mark and Stephen, I realy did know that! Brain freeze on Monday morning. Thanks

DonovanD Stewart38922.4625115741
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Mario
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PostPosted: Mon Jul 24, 2006 5:41 am 
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The long dowel is for the threadfs to bite into something other than just end grain, and also strenthens the entire heel a lot.

For the record, I've been using modified hanger bolts for about a year now. Good enough for Collings, good 'nuff for me... No issues yet, and only needs a 3/16" holes, and in my case, leaves more dowel intact.

The simple butt joint has proven itself plenty sturdy in hundreds of thousands of Taylors, Bourgeois, H&D, and countless others. I've done around 100 of them, and see no reason for a tenon.... honest.
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Mark Tripp
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PostPosted: Mon Jul 24, 2006 5:55 am 
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Status: Semi-pro
Hey Mario,

In what way are the hanger bolts modified?

-Mark

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Mario
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PostPosted: Mon Jul 24, 2006 6:57 am 
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Shortened, then sharpened again...
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Michael Dale Payne
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PostPosted: Mon Jul 24, 2006 8:34 am 
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The issue is either too small of bore for the insert or the insert not tapping in square. Many bore a larger hole and glue in a hardwood dowel then bore the hardwood dowel slightly larger bore than the insert shank. This is a saftey factor if the dowel cracks it will not transfer to the neck. but I use The same thing as the LMI inserts and have hade no issues. I bore 1/64 the bore size andline with titebond before I screw it inMichaelP38923.4165509259
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Mark Tripp
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PostPosted: Tue Jul 25, 2006 12:52 am 
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Thanks Mario.

One more question if I may. Do you countersink the neck block where the nuts attatch to the hanger bolts? If so, do you cap the nuts, ala Collings?

Thanks,

-Mark

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Mario
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PostPosted: Tue Jul 25, 2006 4:31 am 
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Yeah, i countersink the bolt holes, using a 3/4" reverse spotfacer...

I place my interior label on the ehadblock, over the bolts.
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Mark Tripp
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PostPosted: Tue Jul 25, 2006 6:56 am 
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Status: Semi-pro
Thanks Mario!

-Mark

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LuthierSupplier
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PostPosted: Wed Jul 26, 2006 3:42 am 
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I used my first butt joint on my last, and I'll do it on all the rest of my builds. I also used a 5/16" dowel glued in first, then drilled my 1/4" bolt inserts. I got my hardware from Ace hardware. It is Stainless Steel hex threaded bolts, and steel inserts. Worked beautifully, and really cheap! Good luck!
Tracy

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