Foro Flamenco
Posts Since Last Visit | Advanced Search | Home | Register | Login

Today's Posts | Inbox | Profile | Our Rules | Contact Admin | Log Out



Welcome to one of the most active flamenco sites on the Internet. Guests can read most posts but if you want to participate click here to register.
This site is dedicated to the memory of Paco de Lucía, Ron Mitchell, Guy Williams, Linda Elvira and Philip John Lee who went ahead of us too soon.
We receive 12,200 visitors a month from 200 countries and 1.7 million page impressions a year. To advertise on this site please contact us.





Crack in new student Navarro blanca   You are logged in as Guest
Users viewing this topic: none
  Printable Version
All Forums >>Discussions >>Lutherie >> Page: [1]
Login
Message<< Newer Topic  Older Topic >>
 
davewphx

Posts: 51
Joined: Jul. 11 2011
 

Crack in new student Navarro blanca 

I just saw this nasty crack in the back of my new Marlon Navarro that I bought about a month ago from Texas. I've been keeping it in its rigid foam case and use one of the common sponge type humidifiers in the sound hole. Now I realize I probably gave it too much humidity. I didn't think that was possible. The irony is I have a number of acoustic guitars that I have never humidified and leave sitting out for years and have never experienced a crack. And it goes below 5% humidity here in the Phoenix summer! The local humidity here right now is about 30%. I wonder how high it got in there with the sponge. Then I let the sponge go dry, and this dilemma occurs. I guess it was the extreme range that caused it.

This begs the question, if a guitar is made in a dry region, should it be maintained "dry"? Am I really going to have to check this every few days with a Hygrometer?

It sounded very good tonight and I am warming up to neck which is just a little fuller than the Cordoba GK.

What to do? I hate to ship it all the way back to Memorial Music in Houston to try and repair. Its not all the way through the binding at least.






Images are resized automatically to a maximum width of 800px

Attachment (2)

_____________________________

Dave
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 25 2020 4:43:57
 
Tom Blackshear

 

Posts: 2189
Joined: Apr. 15 2008
 

RE: Crack in new student Navarro blanca (in reply to davewphx

Take it to a local repairman and have it fixed. It should be an easy job for an experienced person.

_____________________________

Tom Blackshear Guitar maker
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 25 2020 13:16:30
 
rombsix

Posts: 7483
Joined: Jan. 11 2006
From: Beirut, Lebanon

RE: Crack in new student Navarro blanca (in reply to davewphx



_____________________________

Ramzi

http://www.youtube.com/rombsix
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 25 2020 15:27:54
 
davewphx

Posts: 51
Joined: Jul. 11 2011
 

RE: Crack in new student Navarro blanca (in reply to davewphx

Thanks Tom, glad it should be an easy fix.

_____________________________

Dave
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 26 2020 1:10:11
 
JasonM

Posts: 1565
Joined: Dec. 8 2005
From: Baltimore

RE: Crack in new student Navarro blanca (in reply to davewphx

Oh man

Idk but I doubt you over humidified your guitar. Might be the case that the guitar was glued up in too high a humidity or maybe excess moisture in the wood. it’s better to glue the guitar body on the dryer side of its future home climate.. Wood fibers handle swelling and holding water, they might dome more, but drying out/fiber shrinkage while being glued down is like a tug of war game on the wood.
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 26 2020 3:19:25
 
Argaith

Posts: 465
Joined: May 6 2009
From: Iran (living in London)

RE: Crack in new student Navarro blanca (in reply to davewphx

Sorry about your guitar
I'd get it fixed asap to stop the crack possibly running further.

I've never used a humidifier or anything like that; not that living in the UK I'd need one

_____________________________

  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 26 2020 7:49:21
 
mark indigo

 

Posts: 3306
Joined: Dec. 5 2007
 

RE: Crack in new student Navarro blanca (in reply to davewphx

you can stick a piece of sellotape over the crack like a band-aid until you get to the doctor/luthier. I was told this by someone who dropped his guitar and had a lot of cracks to get repaired.

_____________________________

  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 26 2020 9:46:33
 
davewphx

Posts: 51
Joined: Jul. 11 2011
 

RE: Crack in new student Navarro blanca (in reply to davewphx

Thanks for the advice guys. I didn't check the forum yesterday due to the excess food and booze involved with thanksgiving day. Yes Jason I didn't think it was possible to over-humidify really. May have been a weak spot in the wood? Agreed Argaith, I need to act on this. Looks like plenty of decent places in Phoenix for this repair. I may put a strip of removable blue painters tape over it Mark. At least it wasn't on the soundboard. Hi Ramzi.

_____________________________

Dave
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 27 2020 19:28:16
 
rombsix

Posts: 7483
Joined: Jan. 11 2006
From: Beirut, Lebanon

RE: Crack in new student Navarro blanca (in reply to davewphx

quote:

Hi Ramzi.


Howdy, partner!

_____________________________

Ramzi

http://www.youtube.com/rombsix
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 28 2020 3:45:06
 
Ricardo

Posts: 12680
Joined: Dec. 14 2004
From: Washington DC

RE: Crack in new student Navarro blanca (in reply to davewphx

quote:

Then I let the sponge go dry, and this dilemma occurs. I guess it was the extreme range that caused it.


Yes man, probably took in too much water if it was fine before. I only put the sponge if I feel frets poking out. And once you do that, you have to keep that sponge wet forever...or gradually over the course of several months, let it dry out. If this crack happened because of the rapid drying, also check along the sides of the fingerboard. If the fingerboard shrank as well, you might have cracks in that area.

_____________________________

CD's and transcriptions available here:
www.ricardomarlow.com
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 28 2020 6:36:39
 
Filip

 

Posts: 266
Joined: Apr. 23 2006
From: Paris

RE: Crack in new student Navarro blanca (in reply to davewphx

I'm really sorry about your guitar.
It's our worst nightmare I guess. My old guitar has a crack on the soundboard, it happened a long time ago but it was new guitar at the time. Know exactly how you feel.
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 28 2020 14:22:46
 
devilhand

 

Posts: 853
Joined: Oct. 15 2019
 

RE: Crack in new student Navarro blanca (in reply to Filip

@davewphx

It must be an easy fix. I guess if it had been the top it could've affected the sound a bit.

quote:

My old guitar has a crack on the soundboard

What do you mean by soundboard? The top?

_____________________________

Say No to Fuera de Compás!!!
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 28 2020 14:56:59
 
Filip

 

Posts: 266
Joined: Apr. 23 2006
From: Paris

RE: Crack in new student Navarro blanca (in reply to devilhand

quote:

What do you mean by soundboard? The top?

Yes, the top.
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 28 2020 20:30:48
 
davewphx

Posts: 51
Joined: Jul. 11 2011
 

RE: Crack in new student Navarro blanca (in reply to davewphx

Yes I think you are right Ricardo, I brought it up to high humidity too fast and then let it get dry again. Thats a good test to see if the frets are starting to protrude before adding extra humidity. I should have asked on the foro before adding it. devilhand I think any structure with strings attached is a soundboard-even on a piano. Hello Filip.

_____________________________

Dave
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 28 2020 23:22:19
 
constructordeguitarras

Posts: 1439
Joined: Jan. 29 2012
From: Seattle, Washington, USA

RE: Crack in new student Navarro blanca (in reply to davewphx

quote:

This begs the question, if a guitar is made in a dry region, should it be maintained "dry"?

I have heard of guitarists coming from Spain to the USA to perform with guitars from Spain and having the sides of the guitars split lengthwise. So there may be something to this.

_____________________________

Ethan Deutsch
www.edluthier.com
www.facebook.com/ethandeutschguitars
www.youtube.com/marioamayaflamenco
I always have flamenco guitars available for sale.
  REPORT THIS POST AS INAPPROPRIATE |  Date Nov. 30 2020 15:37:37
 
davewphx

Posts: 51
Joined: Jul. 11 2011
 

RE: Crack in new student Navarro blanca (in reply to davewphx

Interesting Ethan...side cracks sound nasty.

_____________________________

Dave
  REPORT THIS POST AS INAPPROPRIATE |  Date Dec. 1 2020 1:29:56
 
estebanana

Posts: 7999
Joined: Oct. 16 2009
 

RE: Crack in new student Navarro blanca (in reply to mark indigo

quote:

you can stick a piece of sellotape over the crack like a band-aid until you get to the doctor/luthier. I was told this by someone who dropped his guitar and had a lot of cracks to get repaired.



Sorry, I'd have to say that's a pretty bad idea because the adhesive from the tape will probably get in the crack. Or the adhesive could transfer to the area around the crack a have to be cleaned off, and could get smeared into the crack.

Cracks and flakes, or fragments of wood that break off after an impact or cracking, should be left alone and not touched with fingers of tape.

_____________________________

https://www.stephenfaulkguitars.com
  REPORT THIS POST AS INAPPROPRIATE |  Date Dec. 1 2020 3:26:52
 
estebanana

Posts: 7999
Joined: Oct. 16 2009
 

RE: Crack in new student Navarro blanca (in reply to davewphx

Cracking in extreme weather changes is going to happen whether the guitar is in the case or not in the case. If you are down at 30% RH yep they can crack even if they are built at 40% RH.

It takes about 10 or 15 minutes for the wood in the guitar to go from one extreme to the other, and across the grain spruce tops can expand and contract up to a 1/4"! Cypress backs expand a contract a bit less.

Guitars crossing from Spain to North America on airplanes also experience radical temperature and RH changes. The luggage stowage bays get drier than the cabin, and the cabin pressure and air is drier then normal. Aircraft are really dry, the baggage compartment is temperature controlled, but not like the cabin. At 30,000 feet over Greenland the baggage compartment can get low RH.

I've heard flying over Newfoundland is the worst for guitars. Tell the pilot to go off the beacon and reroute to a lower latitude, actually flying the plane without autopilot might stimulate them.....

crack, wipe it, don't smoke it....

_____________________________

https://www.stephenfaulkguitars.com
  REPORT THIS POST AS INAPPROPRIATE |  Date Dec. 1 2020 3:36:33
 
mark indigo

 

Posts: 3306
Joined: Dec. 5 2007
 

RE: Crack in new student Navarro blanca (in reply to estebanana

quote:

Sorry, I'd have to say that's a pretty bad idea


I seem to remember this guys guitar covered in sellotape, I think maybe that was the repair!

_____________________________

  REPORT THIS POST AS INAPPROPRIATE |  Date Dec. 1 2020 8:24:03
Page:   [1]
All Forums >>Discussions >>Lutherie >> Page: [1]
Jump to:

New Messages No New Messages
Hot Topic w/ New Messages Hot Topic w/o New Messages
Locked w/ New Messages Locked w/o New Messages
 Post New Thread
 Reply to Message
 Post New Poll
 Submit Vote
 Delete My Own Post
 Delete My Own Thread
 Rate Posts


Forum Software powered by ASP Playground Advanced Edition 2.0.5
Copyright © 2000 - 2003 ASPPlayground.NET

0.078125 secs.