The Acoustic Guitar Forum

Go Back   The Acoustic Guitar Forum > General Acoustic Guitar and Amplification Discussion > Custom Shop

Reply
 
Thread Tools
  #1  
Old 01-10-2019, 01:11 PM
hartguitars hartguitars is offline
Registered User
 
Join Date: Jan 2019
Posts: 11
Default Oops! graft grain wrong!

I'm just about done building 3 OMs, my 3rd, 4th and 5th build. I don't know how I missed the fact that the back graft bracing is supposed to have the grain oriented 90 degrees to the back grain. I must have skimmed over that page in Cumpiano. This is rather upsetting. The guitars are all coming out very nicely. So the question is, do I fix somehow? Or let it go? It makes perfect sense why you would orient the grain that way now that I'm aware. The graft is basically useless running the same direction. Any thoughts?? I could fix the one under the sound hole relatively easily, but the others would be very difficult.

Thanks for your input!

D
Reply With Quote
  #2  
Old 01-10-2019, 02:11 PM
Halcyon/Tinker's Avatar
Halcyon/Tinker Halcyon/Tinker is offline
AGF Sponsor
 
Join Date: Mar 2013
Posts: 1,982
Default

Sounds like it's too late.

But unless you have a decorative back strip, the back graft is not actually necessary so I wouldn't worry too much.
__________________
Halcyon Guitars
Reply With Quote
  #3  
Old 01-10-2019, 03:03 PM
hartguitars hartguitars is offline
Registered User
 
Join Date: Jan 2019
Posts: 11
Default

They all have thin backstrips inlaid.
Reply With Quote
  #4  
Old 01-10-2019, 03:31 PM
mcgr40 mcgr40 is offline
Registered User
 
Join Date: May 2016
Posts: 37
Default

I think you are speaking of the piece I call the "marriage strip", and while it might be best to have it at right angles to prevent the joint from opening, it seems likely the guitar will survive just as well. At right angles it would be more resistant the seam failing, but it is still probably pretty unlikely with precise joinery. Acoustically, you still have the same weight in roughly the same spot.
I am guessing it will be okay.
Reply With Quote
  #5  
Old 01-10-2019, 03:56 PM
hartguitars hartguitars is offline
Registered User
 
Join Date: Jan 2019
Posts: 11
Default

ha, marriage strip, I like that. It will be interesting to see if any dealers/appraisers notice. I'm hoping to shop these around a bit once finished.
Reply With Quote
  #6  
Old 01-10-2019, 04:04 PM
hartguitars hartguitars is offline
Registered User
 
Join Date: Jan 2019
Posts: 11
Default

I also don't think I've ever seen a guitar fail at that joint. I've often seen cracks somewhere between the binding edge and center seam.
Reply With Quote
  #7  
Old 01-10-2019, 04:40 PM
Simon Fay's Avatar
Simon Fay Simon Fay is offline
AGF Sponsor
 
Join Date: May 2003
Location: New Smyrna Beach, FL
Posts: 1,477
Default

I've been building for about 15 years now - most of that full-time. Here's my back centerstrip. I think you'll be okay

__________________
Luthier
New Smyrna Beach, FL
www.fayguitars.com
Reply With Quote
  #8  
Old 01-10-2019, 05:58 PM
hartguitars hartguitars is offline
Registered User
 
Join Date: Jan 2019
Posts: 11
Default

OK, thanks. That's a relief. That look freaking gorgeous by the way. That kerf lining is very interesting. Like an accordion.
Reply With Quote
  #9  
Old 01-10-2019, 08:03 PM
Simon Fay's Avatar
Simon Fay Simon Fay is offline
AGF Sponsor
 
Join Date: May 2003
Location: New Smyrna Beach, FL
Posts: 1,477
Default

The kerfing is sold by Kevin Ryan - called A4 kerfing. He has evolved the product and now has a product called A5. It's very nice stuff - highly recommend.
__________________
Luthier
New Smyrna Beach, FL
www.fayguitars.com
Reply With Quote
  #10  
Old 01-10-2019, 08:59 PM
Bruce Sexauer's Avatar
Bruce Sexauer Bruce Sexauer is offline
AGF Sponsor
 
Join Date: Jan 2009
Location: Petaluma, CA, USA
Posts: 5,583
Default

I think it doesn’t matter.
__________________
Bruce
http://www.sexauerluthier.com/
Reply With Quote
  #11  
Old 01-11-2019, 07:53 PM
David Wren's Avatar
David Wren David Wren is offline
AGF Sponsor
 
Join Date: Feb 2013
Location: Toronto Canada
Posts: 1,646
Default

I wouldn't get too bent out of shape about it.
__________________
David Wren
Reply With Quote
Reply

  The Acoustic Guitar Forum > General Acoustic Guitar and Amplification Discussion > Custom Shop

Tags
bracing, build guitar, luthiers

Thread Tools



All times are GMT -6. The time now is 08:11 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright ©2000 - 2018, The Acoustic Guitar Forum
vB Ad Management by =RedTyger=