Best wood surface (rough or smooth) for gluing?

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tippie53
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Re: Best wood surface (rough or smooth) for gluing?

Post by tippie53 »

good link
The best way is to check your techniques. Make sample glue ups and allow 5 days to cure out and then add weight till failure.
Toothing a joint was an old practice and really is useless.
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
Darryl Young
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Re: Best wood surface (rough or smooth) for gluing?

Post by Darryl Young »

My understanding is the thinner the glue line the better. The glue would be less thick when glueing a smooth serface. Under magnification, even what we call a smooth sanded surface has a lot of pores.
Slacker......
tippie53
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Re: Best wood surface (rough or smooth) for gluing?

Post by tippie53 »

the better the faces of the joint match the better the joint integrity
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
songman101
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Joined: Mon Aug 19, 2013 11:33 pm

Re: Best wood surface (rough or smooth) for gluing?

Post by songman101 »

Hello John ,,question you and I being former machinists, do you think that the same grade finish usually ( finer is better) in most cases,,,, with wood is ok for gluing to units together with a similar finish rough to rough and fine to fine?

the new newbie Stephen
tippie53
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Re: Best wood surface (rough or smooth) for gluing?

Post by tippie53 »

the better the surface for glue the better you are. Planed surfaces are more true than sanded surfaces so if you a sanding board be sure the as as true as possible.
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
songman101
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Joined: Mon Aug 19, 2013 11:33 pm

Re: Best wood surface (rough or smooth) for gluing?

Post by songman101 »

Thanks John
Great advice appreciate it .
Question is blade scraping considered a (sort of an efficient method) way of finishing a plane finish or not.Also is that a sort of burnishing? If so what are the pros and cons of such an effort (scraping)?

new newbie Stephen
tippie53
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Re: Best wood surface (rough or smooth) for gluing?

Post by tippie53 »

I use a jointer plane
a jointer
and sandpaper on a granite plate

hand scraping may not be accurate enough

you can test fit the joint and hold up to see light. I have a light table but use the window pane on my door. No light , no see joint add glue and go
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
songman101
Posts: 36
Joined: Mon Aug 19, 2013 11:33 pm

Re: Best wood surface (rough or smooth) for gluing?

Post by songman101 »

Hello John

These are terrific Ideas and I'll implement them as soon as I can ,,,appreciate it .The new newbie Stephen
Tom West
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Re: Best wood surface (rough or smooth) for gluing?

Post by Tom West »

tippie53 wrote:the better the faces of the joint match the better the joint integrity
And all other things being equal...the better the guitar...!!!
Tom
" A person who has never made a mistake has never made anything "
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