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 Post subject: Troubled Top--
PostPosted: Mon Jul 28, 2008 1:58 pm 
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Walnut
Walnut

Joined: Tue Oct 16, 2007 3:28 am
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Location: United States
while trying to flush my rosette to the top I gouged the top right below the rosette. I thought I could just sand the the gouge out witch I did accomplish. The problem is that I sanded the radius right out of it. The top was only radiused to 30' and the braces are fine. When I was looking at the placement for the bridge it looks as if the top has sunk down about 1mm in the center of the bridge. The top hasnt sunk I think I just sanded the top flat in that area. Will it be ok to go ahead to try to shap the bridge to fit or will this problem just get worse.

Thanks


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 2:17 pm 
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Brazilian Rosewood
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First name: Mike/Mikey/Michael/hey you!
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Is this top on a guitar?
-check your top thickness and then decide what to do .
Which would be remove the braces & rebrace with the 30'arch.
Or if it's to thin -chock it up to experience-you may be able to save the rosette .
idunno

Mike

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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 2:36 pm 
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Walnut
Walnut

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ugggg. I didnt want to hear that. How would re-radiusing the braces fix it if they are radiused right now?
Thanks for your help Mike. This learning experiences are getting time consuming.


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 3:08 pm 
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Walnut
Walnut

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I thought I read somewhere in the forum that if the shape will return to the top as long as the braces are radiused properly. Do I just have a serious case of the wishful thinking?


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 3:32 pm 
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Koa
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akennedy94 wrote:
ugggg. ..This learning experiences are getting time consuming.


Welcome to the club. gaah

But hey, I finally got my jointing down cold with a blade. No more sandpaper nonsense! bliss

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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 4:37 pm 
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Brazilian Rosewood
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Location: Argyle New York
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Zip/Postal Code: 12809
Country: U.S.A. /America-yea!!
Focus: Build
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Re -radiusing will not help if the top is to thin.
That's why i said to check the thickness first!
Your radius is still there but not measurable.
You'll have to level the outside of the top before rebracing!

Sorry to be unclear on that!
Do you have more tops??


Mike

Good luck!

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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 4:48 pm 
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Walnut
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Ok, that makes sense, I am just a little slow. I do have more tops I just hope I can get the braces off without tearing it up.
Thanks


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 4:50 pm 
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Brazilian Rosewood
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Location: Argyle New York
First name: Mike/Mikey/Michael/hey you!
Last Name: Collins
City: Argyle
State: New York
Zip/Postal Code: 12809
Country: U.S.A. /America-yea!!
Focus: Build
Status: Professional
Do you have a thickness sander?
if not use a sharp plane to get them close to the top and then carefully sand or scrape them to the top !

I'd save the rose and put it in another top!

Mike idunno

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Mike Collins


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 4:51 pm 
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Brazilian Rosewood
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Joined: Mon Mar 06, 2006 10:10 pm
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Location: Argyle New York
First name: Mike/Mikey/Michael/hey you!
Last Name: Collins
City: Argyle
State: New York
Zip/Postal Code: 12809
Country: U.S.A. /America-yea!!
Focus: Build
Status: Professional
Do you have a thickness sander?
if not use a sharp plane to get them close to the top and then carefully sand or scrape them to the top !

I'd save the rose and put it in another top!

Mike idunno

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Mike Collins


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 4:58 pm 
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Walnut
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No, thickness sander. That is next on my wish list. I have been using a wagner saf-t-planer or a flat dish. I will give it a shot. I was just letting my last coat of crystalac set up before the final set up. This is a bummer
Thanks Mike!


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 5:18 pm 
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Brazilian Rosewood
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How do you sand the radius out of top?? idunno

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Cornerstone Guitars
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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 5:41 pm 
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Walnut
Walnut

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Posts: 35
Location: United States
I can screw something up quite easily. I first had sanded the gouge to what I thought was a safe level. After building a 30' sanding block i then tried to sand the radius back over the gouge but it was too far gone. So then I just sanded everything down even and waaaLA~ flat spot from rosette to bridge plate. If anyone needs a tutorial just PM me. laughing6-hehe


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 7:13 pm 
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Walnut
Walnut

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Todd if those are anything like encylopedia bretanica they will sit on your bookshelf and never be looked at again, so I guess what I am saying is I will take those copies off your hands for half price [:Y:]


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 7:15 pm 
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Walnut
Walnut

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Location: United States
Actually i own several sets already. This will be the 4th top on this guitar. First one I didnt radius at all, second the bridge plate was out of line, third the radius, so if there is anything else I can screw up If one of you pros can let me know before hand I sure would appreciate it.
By the way that was great Todd, that cracked me up


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 8:43 pm 
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Brazilian Rosewood
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forgive me but I still don't get it!! idunno
why did you sand a radius on the top in th first place??

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Peter M.
Cornerstone Guitars
http://www.cornerstoneukes.com


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 8:52 pm 
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Cocobolo
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This thread doesn't make any sense to me. Are you saying you braced the top then installed the rosette? If so I don't see how redoing the braces will change anything. The braces and underside of the top are still radiused and that's what's important. If the top isn't too thin why not just sand the outside of it in the dish and leave the braces alone?

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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 9:48 pm 
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Walnut
Walnut

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Posts: 35
Location: United States
Sorry, my top was radiused to 30', while I was scraping my rosette I cut a hole or gouged below my rosette. I tried to sand it out and while doing that I took the arch out of the top. I sanded it to far down and screwed everyting up. This is my first and I am trying to make every single mistake I can on it so from here on out I will only produce perfect outstanding guitars. Watch out world, when I finally finish this one ( 2-3 more years) I am taking you by storm. [headinwall]


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 9:50 pm 
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Walnut
Walnut

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Location: United States
I set my rosette and braced my top. Then I put the top on and was cleaning it up (which I should have done before bracing). While I was scraping it I gouged out a pretty big chunk out of the top right below the rosette. So then I was trying to fix it by sanding it out. :oops: I just messed up. I sanded it to far down and took the arch out of the top. Shouldnt have got in such a hurry.


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 10:06 pm 
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Koa
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akennedy94 wrote:
Sorry, my top was radiused to 30', while I was scraping my rosette I cut a hole or gouged below my rosette. I tried to sand it out and while doing that I took the arch out of the top. I sanded it to far down and screwed everyting up. This is my first and I am trying to make every single mistake I can on it so from here on out I will only produce perfect outstanding guitars. Watch out world, when I finally finish this one ( 2-3 more years) I am taking you by storm. [headinwall]



Its not a screw up, you've just invented the flat/radiused guitar top! :mrgreen:

oops_sign

If your going to take braces off and keep the top, be very very careful....very careful.. :geek:

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http://www.youtube.com/watch?v=oEa8PkjO6_I


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 Post subject: Re: Troubled Top--
PostPosted: Mon Jul 28, 2008 10:13 pm 
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Walnut
Walnut

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Jeremy had the point of what I was looking for. I couldnt measure my top because I was at work. My low point is 2.21 mm. Can I radius this thing out in my dish or just rip it and start over.


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 Post subject: Re: Troubled Top--
PostPosted: Tue Jul 29, 2008 10:29 am 
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Cocobolo
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I'd just start over. It would problably be less time consuming, and easier to do. Less problematic, too. By the time you get everything straight on this particular top, you may end up with it being too thin and have to start over anyway.

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 Post subject: Re: Troubled Top--
PostPosted: Fri Aug 01, 2008 2:20 pm 
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Brazilian Rosewood
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If your top is still 2.2mm thick at the low spot I wouldn't replace the top. I would use a small sanding block and blend the edges into the middle. I would not worry about having a perfect 30 ft radius, just try to eliminate any obvious dip.
Like people , there are no "perfect" guitars in this world.


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 Post subject: Re: Troubled Top--
PostPosted: Fri Aug 01, 2008 4:03 pm 
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Koa
Koa

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Posts: 636
Location: Nr London, UK
akennedy94 wrote:
This is my first and I am trying to make every single mistake I can on it so from here on out I will only produce perfect outstanding guitars.[headinwall]
SNAP :mrgreen:

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