LumberJocks

Acoustic Guitar #6: Fitting the neck; gluing on the soundboard

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Blog entry by YorkshireStewart posted 10-02-2012 07:16 AM 3295 reads 2 times favorited 14 comments Add to Favorites Watch
« Part 5: Some initial assembly. Head and tail blocks Part 6 of Acoustic Guitar series Part 7: Attaching the back »

It’s difficult to see what’s going on here. this is a plywood caul that’s screwed down to the mould as a clamp as I glue on the soundboard. It seems easier than the yards of elastic that’s often used for the same purpose.

-- Res severa verum gaudium - True pleasure is a serious business. http://www.folksy.com/shops/TreeGems



14 comments so far

View Boxguy's profile

Boxguy

1798 posts in 1268 days


#1 posted 10-02-2012 09:54 AM

Yorkie, I take it the neck is attached to the body with some kind of T nut? Or am I missing this? Is the tail block just glued onto the side veneers and the top? Does the cull mate to the earlier used form and use a bunch of bolts to draw it tight during the top glue-up?

The journey continues. Nice blog.

-- Big Al in IN

View Karson's profile

Karson

34977 posts in 3401 days


#2 posted 10-02-2012 12:13 PM

Stewart Great set of pictures.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware soon moving to Virginia karsonwm@gmail.com †

View Roger's profile

Roger

17480 posts in 1804 days


#3 posted 10-02-2012 12:32 PM

A super blog/build, and how-to. Very awesome.

-- Roger from KY. Work/Play/Travel Safe. Kentuk55@yahoo.com

View YorkshireStewart's profile

YorkshireStewart

1127 posts in 2902 days


#4 posted 10-02-2012 02:39 PM

Big Al Boxguy – I have just added a picture that shows how I’m attaching neck to body using barrel nuts. One of the books I’m following is ” Guitarmaking tradition and technology” by Cumpiano. Since he published that, he has moved to neck attachment by this method. See his website

-- Res severa verum gaudium - True pleasure is a serious business. http://www.folksy.com/shops/TreeGems

View Joe Lyddon's profile

Joe Lyddon

8355 posts in 3053 days


#5 posted 10-02-2012 02:56 PM

Man, you’re F A S T ! LOL

COOL…

Thank you

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

View Dick, & Barb Cain's profile

Dick, & Barb Cain

8693 posts in 3300 days


#6 posted 10-02-2012 05:03 PM

Stewart !

I can hardly wait for the next edition !

-- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1

View YorkshireStewart's profile

YorkshireStewart

1127 posts in 2902 days


#7 posted 10-02-2012 05:21 PM

Big Al Boxguy – ..and yes, the two blocks are just glued in place. The plywood caul is wood-screwed down to the ‘mould’ and seems to provide good even clamping pressure.

-- Res severa verum gaudium - True pleasure is a serious business. http://www.folksy.com/shops/TreeGems

View shipwright's profile

shipwright

6088 posts in 1798 days


#8 posted 10-02-2012 05:43 PM

Stewart, a question I must ask as the resident hide glue crusader:

Have you considered using hide glue? I have no experience with musical instruments but whenever I search “hide glue” on the internet, I come up with luthier sites. The reason seems to be that animal glues dry to a hard crystal and synthetic glues don’t and therefore deaden sound in acoustic instruments.

You are working from books written by luthiers so I guess the thought has come up.

Just wondering.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/

View Damian Penney's profile

Damian Penney

1140 posts in 2992 days


#9 posted 10-02-2012 06:20 PM

Plastic resin glue also sets rigidly – the same stuff David Marks uses for veneering.

-- I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso

View YorkshireStewart's profile

YorkshireStewart

1127 posts in 2902 days


#10 posted 10-02-2012 06:27 PM

Hello Paul, I had always imagined that animal glue was essential as part of the mystique of luthiery, and some time ago I gathered in a packet of glue ‘pearls’ and a traditional cast iron gluepot in readiness. I’m not sure when liquid hide glue became available; had I known about that I might not have bothered!

However, upon reading Cumpiano’s book, where he says: ”The choice between animal and PVA [here he includes AR / yellow glues] glue is a matter of personal preference. We find the PVA glues to be far more convenient and geneerally more durable than hide glue. and we do not subscribe to the belief held by some luthiers that the organic nature of animal glues make them more suitable for instrument construction.” I went for the aliphatic glue.

My other sources…Jonathan Kinkead “Build your own acoustic guitar” uses AR throughout, whereas Alex Willis; “Step-by-step guitar making” favours animal glue for most purposes ”the remaining joints being glued with yellow aliphatic glue”

-- Res severa verum gaudium - True pleasure is a serious business. http://www.folksy.com/shops/TreeGems

View shipwright's profile

shipwright

6088 posts in 1798 days


#11 posted 10-02-2012 08:06 PM

Thanks Stewart.

I knew you would have been over the subject.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/

View PurpLev's profile

PurpLev

8505 posts in 2649 days


#12 posted 10-02-2012 08:16 PM

that is a beauty. really nice work so far.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View Mauricio's profile

Mauricio

7053 posts in 2152 days


#13 posted 10-03-2012 02:24 AM

looking great!

-- Mauricio - Woodstock, GA - "Confusion is the Womb of Learning, with utter conviction being it's Tomb" Prof. T.O. Nitsch

View ShaneA's profile (online now)

ShaneA

5761 posts in 1599 days


#14 posted 10-03-2012 02:26 AM

Oh my goodness, in my woodworking evolves to some crazy point…I hope to tackle a project this complex some day. It is looking inspiring.

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