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  #61  
Old 02-23-2017, 11:12 PM
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This is turning out so cool.
  #62  
Old 03-01-2017, 10:30 AM
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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.
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  #63  
Old 03-01-2017, 02:15 PM
Burton LeGeyt Burton LeGeyt is offline
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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!
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  #64  
Old 03-03-2017, 11:32 PM
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Thanks for chiming in! Here are a few off the cuff photos.

edited until we can get the image hosting correct
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The Clueless Audiophile demystifying the two channel hi fi audio market for the clueless among us

Last edited by matthewpartrick; 07-25-2017 at 04:35 AM.
  #65  
Old 03-03-2017, 11:42 PM
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This is fantastic. That neck block is epic.
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Old 03-03-2017, 11:50 PM
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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.
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  #67  
Old 03-04-2017, 02:51 AM
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Way to go Burton!
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  #68  
Old 03-04-2017, 09:34 AM
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HEY!!!! I see it now hahaha...fantastic looking. Nailed the original look for sure.
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Old 03-04-2017, 11:20 AM
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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!!
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Old 03-04-2017, 12:19 PM
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Wow, that is quite an amazing feat of craftsmanship.
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Old 03-04-2017, 12:33 PM
Burton LeGeyt Burton LeGeyt is offline
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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.
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File Type: jpg renaissance-block-web_zpsboibdwps.jpg (39.5 KB, 73 views)
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Last edited by Burton LeGeyt; 07-10-2017 at 08:40 AM.
  #72  
Old 03-04-2017, 02:07 PM
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Looks amazing, Burton!
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  #73  
Old 03-04-2017, 06:59 PM
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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 matthewpartrick; 10-01-2017 at 12:24 PM.
  #74  
Old 03-04-2017, 10:38 PM
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edited for clarity
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On deck:

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2021 Kostal MDW


The Clueless Audiophile demystifying the two channel hi fi audio market for the clueless among us

Last edited by matthewpartrick; 10-01-2017 at 12:24 PM.
  #75  
Old 03-05-2017, 08:43 AM
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The shape is perfect ... sooo nice!
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