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 Post subject: D35 top depression
PostPosted: Sun Nov 07, 2010 9:21 am 
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Cocobolo
Cocobolo

Joined: Sat Jan 14, 2006 4:47 am
Posts: 189
Location: United States
First name: Cecil Wayne
Last Name: Carroll
City: West plains
State: Missouri
Zip/Postal Code: 65775
Country: USA
Focus: Build
Status: Semi-pro
I have a 1971 D35 on my bench for a neck reset. I don't do a lot of repairs. My experience is limited to working for friends and family.

This instrument has a very pronounced depression between the sound hole and the bridge and the usual bulge behind. I can find no loose or damaged braces, The only thing that seams out of the ordinary is the cloth patch at the X brace intersection. It was applied very dry and the ends of the threads are frayed. It extends only a very short distance down the sides of the braces, (barley bast the rounded top portion).

I really need some advise on how to handle this situation.

TIA
Cecil


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 Post subject: Re: D35 top depression
PostPosted: Sun Nov 07, 2010 9:51 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Mon Jan 28, 2008 5:21 am
Posts: 4915
Location: Central PA
First name: john
Last Name: hall
City: Hegins
State: pa
Zip/Postal Code: 17938
Country: usa
Focus: Build
Status: Professional
this is a typical thing on D35s. The lighter braces will tend to do this . Can you post a photo . To correct this you may need to pull the plate. Is that also deformed ? Call me I can tell you the procedure.

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blues creek guitars
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 Post subject: Re: D35 top depression
PostPosted: Sun Nov 07, 2010 9:58 am 
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Contributing Member
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Joined: Fri Mar 24, 2006 12:42 pm
Posts: 2360
Location: Windsor Ontario Canada
First name: Fred
Last Name: Tellier
City: Windsor
State: Ontario
Zip/Postal Code: N8T2C6
Country: Canada
Focus: Build
Status: Amateur
That is what they all do, I have yet to see a D35 more than 20 years old without this and many younger ones also. The structure will hold, set the neck to allow for this. I have seen a few that have had the bridge plate repaired and the owners lament the loss of sound.

Fred

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 Post subject: Re: D35 top depression
PostPosted: Sun Nov 07, 2010 11:56 am 
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Cocobolo
Cocobolo

Joined: Sat Jan 14, 2006 4:47 am
Posts: 189
Location: United States
First name: Cecil Wayne
Last Name: Carroll
City: West plains
State: Missouri
Zip/Postal Code: 65775
Country: USA
Focus: Build
Status: Semi-pro
I really can't believe the generosity the folks on this forum. I just talked to John Hall and he very carefully explained the procedure for correcting this problem.

Thanks John and to all here who so generasly share thier knowledge.

Cecil


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 Post subject: Re: D35 top depression
PostPosted: Sun Nov 07, 2010 6:20 pm 
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Brazilian Rosewood
Brazilian Rosewood
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Joined: Mon Mar 06, 2006 10:10 pm
Posts: 2485
Location: Argyle New York
First name: Mike/Mikey/Michael/hey you!
Last Name: Collins
City: Argyle
State: New York
Zip/Postal Code: 12809
Country: U.S.A. /America-yea!!
Focus: Build
Status: Professional
I have two 70's era D-35s in the shop with the same problem.
No loose braces-just a forward tilt of the top which causes the concave area in front of the bridge and the belly behind.
This tilt also helps the guitar to play sharp-which is also a 70's Martin curse because the bridge was NOT glued in the correct position.

I filled the saddle slot and routed a new 3mm(set back as far as I could go ) one that allowed better intonation & playabliity.

Mike

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