Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Fri Mar 29, 2024 10:15 am


All times are UTC - 5 hours


Forum rules


Be nice, no cussin and enjoy!




Post new topic Reply to topic  [ 12 posts ] 
Author Message
PostPosted: Wed Aug 17, 2022 7:42 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Sun Feb 27, 2005 10:11 am
Posts: 2142
I was really fortunate to obtain A piece of a set of Koa thick enough to make an archtop out of.
it is really beautiful piece to boot ! Dead quartersawn from end to end, nice curl and beautiful color.
I’ve been looking for years and years for a piece of wood like this and I just stumbled onto it.
I was also able to source a one piece Koa neck blank from Bruce at Notable Woods.
All the appointments are ziricote.
Image
Image
Image
Image


Sent from my iPhone using Tapatalk



These users thanked the author Brad Goodman for the post (total 3): James T (Fri Aug 19, 2022 7:51 am) • Chris Pile (Thu Aug 18, 2022 12:11 am) • rbuddy (Wed Aug 17, 2022 8:31 pm)
Top
 Profile  
 
PostPosted: Wed Aug 17, 2022 8:32 pm 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Sun Jun 02, 2013 8:16 am
Posts: 359
First name: Brian
City: U.P.
State: Michigan
Focus: Build
Beautiful guitar Brad!

_________________
Brian R, Wood Mechanic
N8ZED


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 1:19 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Jul 10, 2009 4:44 am
Posts: 5399
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
Stunningly elegant Brad.

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 6:41 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Oct 08, 2008 11:36 am
Posts: 7241
Location: Southeast US
City: Lenoir City
State: TN
Zip/Postal Code: 37772
Country: US
Focus: Repair
Very, very nice and that Koa is indeed stunning!


Steve

_________________
Steve Smith
"Music is what feelings sound like"


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 7:30 am 
Offline
Koa
Koa

Joined: Sat Mar 09, 2019 4:50 pm
Posts: 1093
Location: Goodrich, MI
First name: Ken
Last Name: Nagy
City: Goodrich
State: MI
Focus: Build
Status: Amateur
Very nice Brad. It has flame too! Nice.

I like the simplicity, and the bold f holes. When it's done, give us a listen.

I bought some Koa scrap pieces at Woodcraft a while.ago, and have a violin back roughed out but not finished. It feels and works.like no other wood I've used. It seems light and dry and resonant. Like a much lighter version of Padauk, but even stiffer. How does that happen? Maple rarely feels like that. How that relates sound wise, I don't know. Clear? Loud?

_________________
Why be normal?


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 7:55 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sun Mar 06, 2011 12:04 am
Posts: 5744
First name: Chris
Last Name: Pile
City: Wichita
State: Kansas
Country: Good old US of A
Focus: Repair
Status: Professional
When it's done, I want to hear it - ok?

_________________
"Act your age, not your shoe size" - Prince


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 8:30 am 
Offline
Old Growth Brazilian Rosewood
Old Growth Brazilian Rosewood
User avatar

Joined: Fri Nov 02, 2007 9:49 am
Posts: 12973
Location: Ann Arbor, Michigan
First name: Hesh
Last Name: Breakstone
City: Ann Arbor
State: Michigan
Country: United States
Status: Professional
Very cool!!

_________________
Ann Arbor Guitars


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 8:55 am 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Mon Jul 27, 2015 8:21 am
Posts: 3289
First name: Brad
Last Name: Combs
Focus: Build
Status: Amateur
That will be great! Also hoping to hear it. :)


Sent from my iPhone using Tapatalk Pro

_________________
Insta - https://www.instagram.com/cbcguitars/
Facebook - https://www.facebook.com/cbcguitars


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 2:27 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Fri Dec 14, 2007 3:21 pm
Posts: 3291
Location: Alexandria MN
Sweet! Was the back hard to carve? How did you do it?

_________________
It's not what you don't know that hurts you, it's what you do know that's wrong.


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 3:11 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Sun Feb 27, 2005 10:11 am
Posts: 2142
Ken Nagy wrote:
Very nice Brad. It has flame too! Nice.

I like the simplicity, and the bold f holes. When it's done, give us a listen.

I bought some Koa scrap pieces at Woodcraft a while.ago, and have a violin back roughed out but not finished. It feels and works.like no other wood I've used. It seems light and dry and resonant. Like a much lighter version of Padauk, but even stiffer. How does that happen? Maple rarely feels like that. How that relates sound wise, I don't know. Clear? Loud?



Ken,

To me, the closest thing to koa as far as carving and weight is honduran mahogany. I have only made flattops with koa backa nd sides asn spruce tops and again to me it has attributes of light mahogany.


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 3:13 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Sun Feb 27, 2005 10:11 am
Posts: 2142
Chris Pile wrote:
When it's done, I want to hear it - ok?


Chris, I will put up a sound clip when it is done.

I am a ragtime player so I will have to find a Jazz guy to demo it as well.


Top
 Profile  
 
PostPosted: Thu Aug 18, 2022 3:20 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Sun Feb 27, 2005 10:11 am
Posts: 2142
Terence Kennedy wrote:
Sweet! Was the back hard to carve? How did you do it?


Terrance,

No, it carves and sands easy like mahogany.

I did my usual Lancelot carver to rough it out,then 36 grit on the 4" grinder,then 60 grit on the 6" Festool.I also do some thicknessing with a round bottom plane.
After its' all together including binding I use a scraper for the recurve and finish sander with the 5" Festool and sand out to 180 grit.

As I have mentioned before it only takes me about 2 hours to rough out a plate using this system.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 12 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: Juergen and 38 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com