Official Luthiers Forum! :: View topic - 9 to 12 radius on an acoustic?

All of my acoustics have a compound radius to allow the lowest action possible for the players style. Obviously more important for some styles than others. Mine run about 16 - 20. If you want a 9 - 12 I don’t see any reason not to do it.

Steve

Thanks everybody! So I was refretting an old Gibson j-50 and when sanding the board I was trying to keep as much board as possible. (I use a long beam) Keeping the radius smooth I ended up with 8.5" on most of it and transitioning to 12" starting at about the 12th. Birko fret cauls are great.

I was able to get 3/64-5/64 and a happy client!

Pat

I have a vintage jumbo built in the 60s with a factory 7.25” radius

Interesting, what kind of a jumbo came with a 7.25?

Pat

Author:	Pmaj7 [ Sat Dec 17, 2022 5:00 pm ]
Post subject:	9 to 12 radius on an acoustic?
Can anyone think of any problems with putting a 9 to 12 radius on an acoustic? Pat

Author:	joshnothing [ Sat Dec 17, 2022 5:48 pm ]
Post subject:	Re: 9 to 12 radius on an acoustic?
I’d question the need for a compound radius on a flattop guitar, considering conventional action spec and generally less propensity for acoustic players to execute deep bends and flowing legato passages up the fretboard but there’s no technical reason why it is unviable. I have a vintage jumbo built in the 60s with a factory 7.25” radius that someone has compounded out to 10”ish up the neck during a refret. Sent from my iPhone using Tapatalk

Author:	SteveSmith [ Sat Dec 17, 2022 6:14 pm ]
Post subject:	Re: 9 to 12 radius on an acoustic?
All of my acoustics have a compound radius to allow the lowest action possible for the players style. Obviously more important for some styles than others. Mine run about 16 - 20. If you want a 9 - 12 I don’t see any reason not to do it. Steve

Author:	ballbanjos [ Sat Dec 17, 2022 7:46 pm ]
Post subject:	Re: 9 to 12 radius on an acoustic?
I've done a 9 to 12 on an archtop and it worked fine. I've always liked the feel of Gibson fingerboards over Martins, mainly because of the radius of the arch. Just easier for me to play. A Fender is a bit easier for me yet, so a 9 to 12 seemed logical. I'm mostly doing 12" non-compound nowadays--I didn't feel enough difference between the compound and straight radius boards to make it worthwhile for my playing (and I've been building for ME). My arthritic fingers play barre chords easier on the tighter radius. Dave

Author:	Hesh [ Sun Dec 18, 2022 2:48 am ]
Post subject:	Re: 9 to 12 radius on an acoustic?
SteveSmith wrote: All of my acoustics have a compound radius to allow the lowest action possible for the players style. Obviously more important for some styles than others. Mine run about 16 - 20. If you want a 9 - 12 I don’t see any reason not to do it. Steve Same here AND all the fret work our shop does we impart a compound radius on the instrument(s) as well. It's, the compound radius is baked into how we dress frets and as such not an option with us, everyone gets a compound radius. 9 to 12 is a little tight for an acoustic traditionally speaking but you could make it work.

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9 to 12 radius on an acoustic? http://w-ww.luthiersforum.com/forum/viewtopic.php?f=10101&t=55410	Page 1 of 1

Author:	Pmaj7 [ Tue Dec 20, 2022 4:04 am ]
Post subject:	Re: 9 to 12 radius on an acoustic?
Thanks everybody! So I was refretting an old Gibson j-50 and when sanding the board I was trying to keep as much board as possible. (I use a long beam) Keeping the radius smooth I ended up with 8.5" on most of it and transitioning to 12" starting at about the 12th. Birko fret cauls are great. I was able to get 3/64-5/64 and a happy client! Pat

Author:	Hesh [ Tue Dec 20, 2022 10:08 am ]
Post subject:	Re: 9 to 12 radius on an acoustic?
Pmaj7 wrote: Thanks everybody! So I was refretting an old Gibson j-50 and when sanding the board I was trying to keep as much board as possible. (I use a long beam) Keeping the radius smooth I ended up with 8.5" on most of it and transitioning to 12" starting at about the 12th. Birko fret cauls are great. I was able to get 3/64-5/64 and a happy client! Pat Yay I'll bet the client was thrilled!! Good going Pat.

Author:	Pmaj7 [ Tue Dec 20, 2022 11:33 am ]
Post subject:	Re: 9 to 12 radius on an acoustic?
joshnothing wrote: I have a vintage jumbo built in the 60s with a factory 7.25” radius Interesting, what kind of a jumbo came with a 7.25? Pat

Author:	joshnothing [ Wed Dec 21, 2022 7:00 am ]
Post subject:	Re: 9 to 12 radius on an acoustic?
Pmaj7 wrote: Interesting, what kind of a jumbo came with a 7.25? Pat It’s a ‘62 Hofner 496. I don’t have a pic of mine handy but here’s one of the same model: The neck is cantilevered over the body like an archtop, neck joint is Stauffer-style and neck angle is adjustable with a clock key. Back and sides laminated flamed maple.

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