Rosewood Jumbo

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rcnewcomb
Posts: 309
Joined: Wed Jul 29, 2015 9:04 pm
Location: San Jose, CA, USA

Rosewood Jumbo

Post by rcnewcomb »

I started a rosewood jumbo. I'm not sure what I will use for the top. I have spruce, cedar, and redwood all on hand.
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- Randall Newcomb
10 fingers in, 10 fingers out - another good day in the shop
tippie53
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Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
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Re: Rosewood Jumbo

Post by tippie53 »

I prefer spruce on larger guitars.
John Hall
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nkwak
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Joined: Sat Nov 13, 2010 9:55 pm
Location: Pittsburgh PA suburbs

Re: Rosewood Jumbo

Post by nkwak »

Good luck! I agree with John; a spruce top would be a better choice. It will have more "headroom."

My first build was a cedar topped medium jumbo 16-1/4" lower bout with a 9-3/4" waist and mahogany back and sides. I made it about 4-3/4" deep so it has lots of bass but still sounds bright because I didn't take a lot off the bracing when it came time to go at them with the chisel.
~ Neil
Diane Kauffmds
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Re: Rosewood Jumbo

Post by Diane Kauffmds »

I vote for spruce as well. It'll being out the mids and trebles better in a large guitar.
bftobin
Posts: 37
Joined: Sun Aug 24, 2014 12:27 pm

Re: Rosewood Jumbo

Post by bftobin »

I also vote for spruce. I use mainly Lutz, Red and Euro, although I do have some Port Orford Cedar and some WRC.
I always check the cross grain stiffness. The stiffest go on large bodies and the floppier ones go on smaller bodies.
I'm going to be following this build. I haven't seen too many jumbo builds.Best of luck
rcnewcomb
Posts: 309
Joined: Wed Jul 29, 2015 9:04 pm
Location: San Jose, CA, USA

Re: Rosewood Jumbo

Post by rcnewcomb »

I noticed this kit has a dovetail. My previous builds have been mortise. What should I be aware of when it comes time to fit and glue the neck to the body? I know mortice allowed me to do a bit more trial-and-error while fitting the neck with the body.
- Randall Newcomb
10 fingers in, 10 fingers out - another good day in the shop
Danl8
Posts: 707
Joined: Mon Jul 28, 2014 7:50 am
Location: Chadds Ford, PA

Re: Rosewood Jumbo

Post by Danl8 »

rcnewcomb wrote:I noticed this kit has a dovetail. My previous builds have been mortise. What should I be aware of when it comes time to fit and glue the neck to the body? I know mortice allowed me to do a bit more trial-and-error while fitting the neck with the body.
One thing I could suggest is to watch John's videos on getting the geometry right for the sides and top and then the videos on setting the neck. It's pretty easy after you've done it a few times -- the first one will be stressful for sure. Watching John do it will definitely help.
Diane Kauffmds
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Joined: Sun Mar 09, 2014 8:13 pm

Re: Rosewood Jumbo

Post by Diane Kauffmds »

A lot of what you did with the bolt on neck will apply to the dovetail. As Dan said, watch John's videos; they'll help. But, since you've done a neck, the geometry is the same no matter how it's attached. Just achieving it will be a little different.

Make sure you modify the dovetail, never the neck block. You'll notice that the dovetail seems to drop right into the neck block right now. Don't worry. It'll tighten as you start tilting it back.

As far as having to adjust the neck tilt left/right or correcting a twist, just stop, read your chalk. Think about where the wood is rubbing and how this moves the dovetail. If you take your time to picture it, it becomes easy.

I hope this makes a little sense. Don't let it intimidate you. It's just like your bolt on, except the mortise and tenon flare out so they don't need the hardware.
rcnewcomb
Posts: 309
Joined: Wed Jul 29, 2015 9:04 pm
Location: San Jose, CA, USA

Re: Rosewood Jumbo

Post by rcnewcomb »

Got the neck and tail blocks glued in
NeckAndTailBlocks.jpg
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- Randall Newcomb
10 fingers in, 10 fingers out - another good day in the shop
rcnewcomb
Posts: 309
Joined: Wed Jul 29, 2015 9:04 pm
Location: San Jose, CA, USA

Re: Rosewood Jumbo

Post by rcnewcomb »

Kerfing going on. You can never have too many clamps
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- Randall Newcomb
10 fingers in, 10 fingers out - another good day in the shop
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