The Acoustic Guitar Forum

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

Reply
 
Thread Tools
  #16  
Old 01-27-2020, 11:54 AM
cigarfan's Avatar
cigarfan cigarfan is offline
Music soothes the soul!
 
Join Date: Jan 2012
Location: Within the blast radius of Washington D.C.
Posts: 5,191
Default

Looking good Bob. I think I like the s-holes better than the typical f.
__________________
Life is like a box of chocolates ....
Reply With Quote
  #17  
Old 01-27-2020, 12:06 PM
Steve Kinnaird's Avatar
Steve Kinnaird Steve Kinnaird is offline
AGF Sponsor
 
Join Date: Aug 2009
Location: Nacogdoches, TX
Posts: 3,618
Default

Yes, I'm with Dennis--those "S" holes are lovely, and who can argue with the letter "S" anyways? A lot of good things begin with that letter.
And mercy, that set of Euro Sycamore (see? another S) is to buy for. Kudos!

S. Kinnaird
__________________
www.stephenkinnaird.com

Crafted in the Piney Woods
Reply With Quote
  #18  
Old 01-27-2020, 03:06 PM
iim7V7IM7's Avatar
iim7V7IM7 iim7V7IM7 is offline
Charter Member
 
Join Date: Feb 2012
Location: An Exit Off the Turnpike in New Jersey
Posts: 5,157
Default

Quote:
Originally Posted by cigarfan View Post
Looking good Bob. I think I like the s-holes better than the typical f.
Quote:
Originally Posted by Steve Kinnaird View Post
Yes, I'm with Dennis--those "S" holes are lovely, and who can argue with the letter "S" anyways? A lot of good things begin with that letter.
And mercy, that set of Euro Sycamore (see? another S) is to buy for. Kudos!

S. Kinnaird
Thanks guys...

I actually like both f-holes and s-holes. I have archtops with both. My 16” Comins Classic (left) has chamfered f-holes and my 17” Trenier Artifex (right) has s-holes. I felt since we were binding these, the simpler s-holes would work better in the context of this design. I think Steve may be showing his Nacogdoche”S” bias....

Yes, the European “S”ycamore is gorgeous. I like that the 2002 re-saw date was left on it. I can’t wait to see it carved and under finish...

__________________
A bunch of nice archtops, flattops, a gypsy & nylon strings…
Reply With Quote
  #19  
Old 01-30-2020, 03:27 AM
CoolerKing's Avatar
CoolerKing CoolerKing is offline
FKA matthewpartrick :)
 
Join Date: May 2013
Location: North Havana
Posts: 5,344
Default

great thread, don't know how I missed it the first time around. Also looking to see that back under finish.
Reply With Quote
  #20  
Old 01-30-2020, 08:53 PM
iim7V7IM7's Avatar
iim7V7IM7 iim7V7IM7 is offline
Charter Member
 
Join Date: Feb 2012
Location: An Exit Off the Turnpike in New Jersey
Posts: 5,157
Default

Quote:
Originally Posted by matthewpartrick View Post
great thread, don't know how I missed it the first time around. Also looking to see that back under finish.
Thanks Matthew....

I think John was waiting for some of his end mills to come back from the sharpener before rough cutting it. That set was re-sawn by Andreas Gleisner in Germany 18-years ago and came from the Austrian Alps. European Sycamore tends to be paler in color than North American Bigleaf or Red Maple. This set is quite unusual. John is planning on using a very light fadeburst color which should enhance the depth of the fiddleback once under finish.
__________________
A bunch of nice archtops, flattops, a gypsy & nylon strings…
Reply With Quote
  #21  
Old 01-30-2020, 11:22 PM
justonwo's Avatar
justonwo justonwo is offline
Charter Member
 
Join Date: Oct 2008
Location: SF Bay Area
Posts: 7,123
Default

Rad! Keep up the good work with posting!
Reply With Quote
  #22  
Old 04-08-2020, 03:45 PM
iim7V7IM7's Avatar
iim7V7IM7 iim7V7IM7 is offline
Charter Member
 
Join Date: Feb 2012
Location: An Exit Off the Turnpike in New Jersey
Posts: 5,157
Default Rough Carving

I received these two videos today from John...

The first video shows the rough carving process for the Austrian Sycamore Maple using his CNC.



The second video shows the perimeter shaping of the plantilla of the back plate.



More when I get it...
__________________
A bunch of nice archtops, flattops, a gypsy & nylon strings…
Reply With Quote
  #23  
Old 04-09-2020, 03:12 AM
cigarfan's Avatar
cigarfan cigarfan is offline
Music soothes the soul!
 
Join Date: Jan 2012
Location: Within the blast radius of Washington D.C.
Posts: 5,191
Default

Awesome! Thanks for posting these. CNC is such an incredible process. Fascinating!
__________________
Life is like a box of chocolates ....
Reply With Quote
  #24  
Old 04-09-2020, 06:19 AM
iim7V7IM7's Avatar
iim7V7IM7 iim7V7IM7 is offline
Charter Member
 
Join Date: Feb 2012
Location: An Exit Off the Turnpike in New Jersey
Posts: 5,157
Default

Quote:
Originally Posted by cigarfan View Post
Awesome! Thanks for posting these. CNC is such an incredible process. Fascinating!
Thanks Dennis…..

Out of the many luthiers that I have interacted with over the years, only a minority of them have utilized CNC in the creation of their instruments. Some of that is driven by their philosophy, or the cost of entry (computer, software, CNC, tools, jigs and fixtures etc.), and others a reluctance to learn new methods (e.g, learn CAD, CAM and shop methods).

Archop luthiers in general have been early adapters of the technology because it is a far more physically labor-intensive process than the creation of a classical or steel string flat top guitar. The rough carving of maple and spruce plates using manual methods over decades takes a physical toll on a luthier. Many older archtop (also cello and violin) luthiers in the later decades of their careers suffer from permanent repetitive stress injuries.

John started hand carving archtops in Bob Benedetto’s shop in the early 1980s. Like many, he moved on to using a router duplicator for rough carving his plates for decades. It wasn’t until John was in his 60s when he added a CNC into his building process. The refinement and acoustic tuning of the plates and braces are still accomplished through traditional methods guided by the mastery of the luthier.
__________________
A bunch of nice archtops, flattops, a gypsy & nylon strings…
Reply With Quote
  #25  
Old 04-09-2020, 09:04 AM
Nemoman Nemoman is offline
Charter Member
 
Join Date: Dec 2010
Location: N. California
Posts: 3,148
Default

Very cool--watching those videos one can really see the advantages of using the CNC in this application. Thanks for sharing them!
__________________
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)
Reply With Quote
  #26  
Old 04-10-2020, 10:48 AM
iim7V7IM7's Avatar
iim7V7IM7 iim7V7IM7 is offline
Charter Member
 
Join Date: Feb 2012
Location: An Exit Off the Turnpike in New Jersey
Posts: 5,157
Default A touch of maple...

John has installed and tuned a Carpathian Spruce x-brace for the Carpathian Spruce top. John add a tone bar to his x-brace to fatten the treble response in his instruments.



Here is the rough carved the Fiddleback Austrian Alpine Maple (European Sycamore) and attached it to the Basswood kerfed lined, Sitka Spruce reinforced rims. You can also see the Honduran Mahogany neck and end blocks. Even without finish, you can see that the figure in this set is going to be something special...





John is tapering rims on this 16” archtop for some enhanced acoustic response. The taper will go from 3” to 3-1/2” on this instrument.

__________________
A bunch of nice archtops, flattops, a gypsy & nylon strings…
Reply With Quote
  #27  
Old 04-11-2020, 04:31 AM
cigarfan's Avatar
cigarfan cigarfan is offline
Music soothes the soul!
 
Join Date: Jan 2012
Location: Within the blast radius of Washington D.C.
Posts: 5,191
Default

That Maple is going to be eye popping!
__________________
Life is like a box of chocolates ....
Reply With Quote
  #28  
Old 04-11-2020, 05:42 AM
iim7V7IM7's Avatar
iim7V7IM7 iim7V7IM7 is offline
Charter Member
 
Join Date: Feb 2012
Location: An Exit Off the Turnpike in New Jersey
Posts: 5,157
Default

Quote:
Originally Posted by cigarfan View Post
That Maple is going to be eye popping!
Thanks Dennis.... John got this set of maple from Andreas Gleissner in Germany. It came from a log harvested in Austria. It has been seasoning/drying for 17 years since it was resawn. It is very unusual to find the combination of fiddleback figure with such tight quartersawn grain in a 1” thick billet. John is going to put on a very light almond burst tint which should make the figure “pop” even more...
__________________
A bunch of nice archtops, flattops, a gypsy & nylon strings…

Last edited by iim7V7IM7; 04-11-2020 at 08:47 AM.
Reply With Quote
  #29  
Old 04-11-2020, 06:34 AM
Bill Kraus's Avatar
Bill Kraus Bill Kraus is offline
AGF Sponsor
 
Join Date: Jan 2016
Location: western new york
Posts: 657
Default

A stunning set, you don't see curl like that too often. I love the way it's highlighted in this photo.

__________________
http://www.krausguitars.com
Reply With Quote
  #30  
Old 04-11-2020, 08:10 AM
iim7V7IM7's Avatar
iim7V7IM7 iim7V7IM7 is offline
Charter Member
 
Join Date: Feb 2012
Location: An Exit Off the Turnpike in New Jersey
Posts: 5,157
Default

Quote:
Originally Posted by Bill Kraus View Post
A stunning set, you don't see curl like that too often. I love the way it's highlighted in this photo.

Bill, no I have not either in Euro Maple archtop sets.... I have seen a number of lovely flattop sets, but not in 1” billets. This level of curl is more common in Bigleaf maples. This set is on the denser end of the spectrum.
__________________
A bunch of nice archtops, flattops, a gypsy & nylon strings…
Reply With Quote
Reply

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

Thread Tools





All times are GMT -6. The time now is 04:45 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=