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 Post subject: Touch up on Yamaha
PostPosted: Tue Jul 27, 2021 7:45 am 
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Koa
Koa
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Joined: Tue Feb 26, 2008 6:19 am
Posts: 1323
First name: Richard
Last Name: Hutchings
City: Warwick
State: RI
Zip/Postal Code: 02889
Country: United States
Focus: Build
Status: Amateur
I just finished resetting a Yamaha neck and need to do a little finish touch up. Wondering what I should use that will adhere to the old finish. I'm thinking lacquer might be the best way to go but also considering poly.

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Hutch

Get the heck off the couch and go build a guitar!!!!


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 Post subject: Re: Touch up on Yamaha
PostPosted: Tue Jul 27, 2021 3:29 pm 
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Contributing Member
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Joined: Fri Jul 10, 2009 4:44 am
Posts: 5398
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
Have you considered GluBoost and Kovax Tolecut abrasives?
https://www.stewmac.com/luthier-tools-and-supplies/supplies/sanding-and-polishing/buffing-and-polishing/kovax-tolecut-finish-repair-system/?utm_source=google&utm_medium=shopping&utm_campaign=2021-07-gp&pref_currency=P&shipcalc=UK&gclid=Cj0KCQjw3f6HBhDHARIsAD_i3D8zcpkzVDmKy1J1W5qlF82ygf9IptK3aeKezqwl4V2zCuj3RgQnyJUaAg-rEALw_wcB
I've found them excellent combination for touch ups on many finishes. And no waiting for lacquer drop fills to dry

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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.


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 Post subject: Re: Touch up on Yamaha
PostPosted: Wed Jul 28, 2021 6:06 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Thu Nov 04, 2010 1:46 pm
Posts: 2124
First name: Freeman
Last Name: Keller
Focus: Build
Status: Amateur
Were you successful in resetting the neck? What model? Come apart OK? Did you have to angle the steam injection needle?

Old Yammies were lacquer - that is what I would use. If its newer I would test first.


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 Post subject: Re: Touch up on Yamaha
PostPosted: Fri Jul 30, 2021 2:08 pm 
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Koa
Koa
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Joined: Tue Feb 26, 2008 6:19 am
Posts: 1323
First name: Richard
Last Name: Hutchings
City: Warwick
State: RI
Zip/Postal Code: 02889
Country: United States
Focus: Build
Status: Amateur
I finally strung it up and was surprised to find the action was still high on the high e strings. When I checked before stringing it up with a straight edge, it was well above the bridge but after stringing it, it was below the bridge. After checking the relief I found there was plenty of room for adjustment so I cranked about 3/4 turn and that helped. Brought it to about About .110" on the high E and .09 on the low E. I think this is OK for a 12 string but I also found that after clamping the fretboard to the body that it looks awful and I don't think I can live with that much fall off so I'm going to un glue it and add a rosewood shim. I may take the neck off again and increase the angle.

Your thoughts

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Hutch

Get the heck off the couch and go build a guitar!!!!


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 Post subject: Re: Touch up on Yamaha
PostPosted: Sat Jul 31, 2021 4:21 pm 
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Koa
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Joined: Tue Feb 26, 2008 6:19 am
Posts: 1323
First name: Richard
Last Name: Hutchings
City: Warwick
State: RI
Zip/Postal Code: 02889
Country: United States
Focus: Build
Status: Amateur
The guy was happy with the rest and plays beautiful. He wants a shim under the fretboard though and offered to pay the extra.

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Hutch

Get the heck off the couch and go build a guitar!!!!


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 Post subject: Re: Touch up on Yamaha
PostPosted: Sat Jul 31, 2021 6:17 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Fri Aug 19, 2005 4:02 am
Posts: 3227
Location: The Woodlands, Texas
First name: Barry
Last Name: Daniels
Is the fretboard currently floating?


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 Post subject: Re: Touch up on Yamaha
PostPosted: Sun Aug 01, 2021 8:09 am 
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Koa
Koa
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Joined: Tue Feb 26, 2008 6:19 am
Posts: 1323
First name: Richard
Last Name: Hutchings
City: Warwick
State: RI
Zip/Postal Code: 02889
Country: United States
Focus: Build
Status: Amateur
No, I glued it down. Time to learn to make tapered shims and scrape out glue.

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Hutch

Get the heck off the couch and go build a guitar!!!!


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