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Posts: 1108
Joined: Sep. 29 2009
From: Back in Boston
RE: Yamaha C40 - extreme make over ... (in reply to Haithamflamenco)
boy, us folks here in new england are spending our time shoveling and way too much time stuck in a snowstorm during rush hours. i would love to trade shoveling and three times the normal commute home for frankensteining a cheap yamaha. enjoy the project. by the way, i would imagine the glue used is pretty tenacious--doubtful it is hide glue.
Posts: 2697
Joined: Jun. 7 2010
From: The South Ireland
RE: Yamaha C40 - extreme make over ... (in reply to Haithamflamenco)
quote:
I take the skin off ( poly lequre)
very adventurous , i did something similar once but i only took the poly aff the sound board and left the back and sides hard , thinking it would actually bonce the sound out better ... a little bit of work on the neck and new bone bridge and neck pieces ... big improvement on volume and treble i noticed ....
i was thinking of trying a more in depth makeover of an old negra next year ... depends on time thouhg ..
RE: Yamaha C40 - extreme make over ... (in reply to Haithamflamenco)
I think it's not such a wild idea. Dont get me too wrong it's a labour of love and probably about the same time of finishing (polish and tweek) a new guitar. My back burner project for when I have nothing do to (fat chance) is a cheap Alhambra. Picked up in Jerez rather than take a guitar over and it's bog standard classical with mahogany back and sides. I'm going to whip the back off and do any adjustments that I can before taking the height of the ribs down and this time give it some proper bindings (yeh, that cheap) before a final finish. Even on my first I used furniture polish which realising the error of my ways, stripped it off three years later and fp'd. What a difference. It's all a major repair job and not commercially viable but it does improve things , no doubt about that. Best of luck.
RE: Yamaha C40 - extreme make over ... (in reply to Haithamflamenco)
Just make sure you add these as well... along with lots of bridge sanding and bridge hole lowering, use the toothpick fill technique. I did this with my first beater off craigslist and while there no comparison to an proper flamenco guitar, it at least makes it playable. Good luck.
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RE: Yamaha C40 - extreme make over ... (in reply to Haithamflamenco)
Ok, not an encouraging posts as usual ,
This is human nature u pointed the negative but what about the Conde headstock !!
Any way, this is my kitchen , and I don't have a place yet for a workshop, sanding ,painting etc.. Is outside this place,
As u notice in the picture I failed to make the sound hole in oval shape and I wrote that ,
It's my learning processes and I had this idea long time ago, I really enjoy it, btw , the guitar is done i just post those pictures and I will continue posting the rest,
Ya I used wood filler, this guitar is not a abrazo brazilian rose wood with spruce top, it's just an plywood Yamaha c40 even the soundboard is a plywood, and it had a big place where the owner dig the board with his nail, no globe was installed ,
Please don't compare this work to its, u are pro luthiers , and I am only experimenting with my small knowledge and skills
Posts: 283
Joined: Jul. 10 2007
From: Leigh, Lancashire, UK
RE: Yamaha C40 - extreme make over ... (in reply to Haithamflamenco)
I recently modified the bridge (filled, lowered and re-angled the string holes, 12 hole conversion, deepened saddle slot) on an old guitar and so I will be interested to see how you do yours.
I'm pleased you are enjoying the process and look forward to seeing the final result
RE: Yamaha C40 - extreme make over ... (in reply to Haithamflamenco)
You went too far. You should have left the ribs without a sound port and left the head stock alone too.
Knowing where to stop is probably the most important lesson to learn. If you had just wrapped it up after thinning the top and lowering the bridge it would have been great!
1. That sound port is about four times too large and it won't work now. All it is a giant air leak. Sound ports become ineffective when the diameter is over 1-1/4" at most. All you needed was a 7/8" diameter hole on that guitar.
2. What you should have done was just refinish the guitar. If you had not gotten into a fever for modification and simply thinned the top slowly by learning how to use a scraper you would have learned a great deal.
3. You should have made a hand held binding & purfling cutter and learned to do a binding job on this guitar.
4. You could have learned to find the center of the soundhole by blocking it up with scrap and then used a popsicle stick compass and Exacto blade to to cut a few simple rosette channels that hit the fingerboard. You could have given it a simple B-W-B rosette with matching binding and purfling.
Next time ask before you just cut soemthing to ribbons.
RE: Yamaha C40 - extreme make over ... (in reply to Haithamflamenco)
so I was brushing the stain little bit thick on the back and sides, traing to make it look like a rosewood
after staingin I start it wet sanding the stain very lightly to smoth the rough surface as I can and I strted to add epoxy, I bleive I used the wrong type of eboxy which is the normal very light Superglue
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