The Acoustic Guitar Forum

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

Closed Thread
 
Thread Tools
  #61  
Old 02-23-2017, 11:12 PM
justonwo's Avatar
justonwo justonwo is offline
Charter Member
 
Join Date: Oct 2008
Location: SF Bay Area
Posts: 7,117
Default

This is turning out so cool.
  #62  
Old 03-01-2017, 10:30 AM
CoolerKing's Avatar
CoolerKing CoolerKing is offline
FKA matthewpartrick :)
 
Join Date: May 2013
Location: North Havana
Posts: 5,344
Default

Quote:
Originally Posted by Rodger Knox View Post
That's several photos of the neck block being constructed, and all the photos are of the bottom. Looks like a mortise and tenion neck joint, and I don't understand the CF reinforcement.
The CF that you're seeing in the joint carries all the way down towards the bottom of the block, similar to what a Spanish heel would do in a classical guitar.
  #63  
Old 03-01-2017, 02:15 PM
Burton LeGeyt Burton LeGeyt is offline
Registered User
 
Join Date: Nov 2010
Posts: 274
Default

I appreciate everyone's responses! This has been a fun project and I under-estimated what it would take to laminate the sides to shape and have them fit correctly. Also how tricky it would be to get the wood to conform to that curve. using highly figured wood probably didn't help-

The geometry is tricky, and not just the curve- Lots of planes have to come together correctly for it to work right. Much less wiggle room than a standard style guitar. I feel good about it but also don't have the blocks glued in yet :0.........

It gives me a new respect (not that it was lacking....) for the construction of the one this guitar is based on- Solid and 2 piece sides? Yeesh!

I currently have the second side glued up and curing and (fingers crossed) will have the sides glued up to the neck and end block this weekend.

Rodger- The CF is there to reinforce the mortise. By the heelcap it gets really thin and I was worried that it could easily crack if it took an impact. Also, I realized later, I could probably do some damage just in clamping things! The CF keeps it from caving in and deforming and saves me some worry. All good things!
__________________
Burton
Boston, MA
  #64  
Old 03-03-2017, 11:32 PM
CoolerKing's Avatar
CoolerKing CoolerKing is offline
FKA matthewpartrick :)
 
Join Date: May 2013
Location: North Havana
Posts: 5,344
Default

Thanks for chiming in! Here are a few off the cuff photos.

edited until we can get the image hosting correct

Last edited by CoolerKing; 07-25-2017 at 04:35 AM.
  #65  
Old 03-03-2017, 11:42 PM
rogthefrog's Avatar
rogthefrog rogthefrog is offline
Charter Member
 
Join Date: Nov 2013
Location: San Francisco Bay Area
Posts: 5,058
Default

This is fantastic. That neck block is epic.
__________________
Solo acoustic guitar videos:
This Boy is Damaged - Little Watercolor Pictures of Locomotives - Ragamuffin
  #66  
Old 03-03-2017, 11:50 PM
rogthefrog's Avatar
rogthefrog rogthefrog is offline
Charter Member
 
Join Date: Nov 2013
Location: San Francisco Bay Area
Posts: 5,058
Default

Quote:
Originally Posted by matthewpartrick View Post
Additionally; any luthiers in the group want to hazard a guess as to how this (the concave/compound curve on the upper bout/neck) was done on the original Martin renaissance guitar? I suppose a ton of experience, patience, practice, etc.
Not a luthier, so this is probably wrong, but I suspect the Martin folks had a few highly trained beavers on hand to do this.
__________________
Solo acoustic guitar videos:
This Boy is Damaged - Little Watercolor Pictures of Locomotives - Ragamuffin
  #67  
Old 03-04-2017, 02:51 AM
Ken Franklin Ken Franklin is offline
Registered User
 
Join Date: Apr 2008
Location: Ukiah, CA
Posts: 228
Default

Way to go Burton!
__________________
Ken Franklin
https://www.kenfranklinukulele.com
  #68  
Old 03-04-2017, 09:34 AM
TomB'sox's Avatar
TomB'sox TomB'sox is offline
Moderator
 
Join Date: Dec 2014
Location: The Lone Star State
Posts: 13,394
Default

HEY!!!! I see it now hahaha...fantastic looking. Nailed the original look for sure.
__________________
PS. I love guitars!
  #69  
Old 03-04-2017, 11:20 AM
maurerfan maurerfan is offline
Registered User
 
Join Date: Jun 2008
Posts: 350
Default

Lots of vicarious enjoyment here ... especially since I've had a similar guitar in mind ever since I held and played the original guitar several years ago. This is definitely pressuring the gasometer!!
  #70  
Old 03-04-2017, 12:19 PM
justonwo's Avatar
justonwo justonwo is offline
Charter Member
 
Join Date: Oct 2008
Location: SF Bay Area
Posts: 7,117
Default

Wow, that is quite an amazing feat of craftsmanship.
  #71  
Old 03-04-2017, 12:33 PM
Burton LeGeyt Burton LeGeyt is offline
Registered User
 
Join Date: Nov 2010
Posts: 274
Default

Thanks guys- Here is a cleaner shot after some needed sanding. Both top and back are slightly tapered-


Maurerfan, give me a call! No pressure but would love to chat.
Attached Images
File Type: jpg renaissance-block-web_zpsboibdwps.jpg (39.5 KB, 80 views)
__________________
Burton
Boston, MA

Last edited by Burton LeGeyt; 07-10-2017 at 08:40 AM.
  #72  
Old 03-04-2017, 02:07 PM
Nemoman Nemoman is offline
Charter Member
 
Join Date: Dec 2010
Location: N. California
Posts: 3,136
Default

Looks amazing, Burton!
__________________
2013 Stehr Auditorium (Carpathian/Myrtle)
2015 Stehr Auditorium (Adi/BRW)
2020 Baranik Meridian (Blue Spruce/Manchinga)
2020 Wilborn Arum (Tunnel 14/Coco)
2021 Kinnaird Graybeard (BC Cedar/Bog Oak)
2022 Kinnaird CS Student Build (Adi/Padauk)
2023 Kinnaird FS (Italian/Koa)
  #73  
Old 03-04-2017, 06:59 PM
Woodenhead Woodenhead is offline
Registered User
 
Join Date: Feb 2011
Posts: 20
Default

Quote:
Originally Posted by Burton LeGeyt View Post
... I under-estimated what it would take to laminate the sides to shape and have them fit correctly. Also how tricky it would be to get the wood to conform to that curve. using highly figured wood probably didn't help-

The geometry is tricky, and not just the curve- Lots of planes have to come together correctly for it to work right. Much less wiggle room than a standard style guitar.
Making the side have a compound curve so that it matches a curve on the heel is insane. The heel on the Martin makes it less complicated than what you're doing.

Last edited by CoolerKing; 10-01-2017 at 12:24 PM.
  #74  
Old 03-04-2017, 10:38 PM
CoolerKing's Avatar
CoolerKing CoolerKing is offline
FKA matthewpartrick :)
 
Join Date: May 2013
Location: North Havana
Posts: 5,344
Default

edited for clarity

Last edited by CoolerKing; 10-01-2017 at 12:24 PM.
  #75  
Old 03-05-2017, 08:43 AM
maurerfan maurerfan is offline
Registered User
 
Join Date: Jun 2008
Posts: 350
Default

The shape is perfect ... sooo nice!
Closed Thread

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

Thread Tools





All times are GMT -6. The time now is 04:56 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ©2000 - 2022, The Acoustic Guitar Forum
vB Ad Management by =RedTyger=