End graft advice, please

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End graft advice, please

Postby Ron Daves » Fri Aug 16, 2013 10:41 am

I just finished an end graft on a Concert Uke. I tried two mehods that didn't work, e.g., router and an edge guide affixed with double backed carpet tape and a jig that clamped to the bench. The carpet tape seemed a bit squiggly and the jig might have worked if I could have clamped the instrument down successfully. The other problem was that I couldn't see past the router base very well. This all made me nervous, so I chiseled out the edge graft recess. Clamping the instrument down was challenging, but I managed it. Still, getting a straight edge to hold still while I scored the sides just didn't work for me. I ended using a very sharp chisel and lightly tapped it to create the recess edges, then carved out the rest. Using a hammer on a stringed instrument is not a good idea, no matter how light you tap. I got it done, but there has to be an easier way.

Any advice?
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Re: End graft advice, please

Postby Rodger Knox » Fri Aug 16, 2013 11:54 am

If I understand you correctly, I've used a fretsaw to make those cuts.
I've also used a hobby knife, but that's more work than most people want to do.
A man hears what he wants to hear, and disreguards the rest. Paul Simon
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Re: End graft advice, please

Postby Pat Foster » Fri Aug 16, 2013 2:01 pm

I use a small Japanese saw, also much like a fret saw. It cuts on the pull stroke, which for me makes it easier to get accurate results. For a guide, I use a cork-backed ruler, with the saw on the INSIDE of the line so that any slips will only damage wood that is to be removed. Hope this helps.

Pat
I like to start slow, then taper off.
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Re: End graft advice, please

Postby Mario Proulx » Sat Aug 17, 2013 12:38 am

Razor saw or sharp knife, and sharp chisel. End of story.

Jigs are for when you intend to make multiple identical items. Or to overcome a lack of skills.
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Re: End graft advice, please

Postby Ron Daves » Sat Aug 17, 2013 12:28 pm

Okay, thanks. Razor knife and sharp chisel makes sense. I used sharp chisel and sharp chisel. Lots of work. I've used a router in the past, but that's scary.

Mario wrote: "Jigs are for when you intend to make multiple identical items. Or to overcome a lack of skills"

Clear and succinct...ouch
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Re: End graft advice, please

Postby Michael Lewis » Sun Aug 18, 2013 2:24 am

The way to make the job easier is to do it more often. Once you get used to using the tools and protecting the surrounding surfaces you will be more relaxed and efficient.
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Re: End graft advice, please

Postby Simon Magennis » Sun Aug 18, 2013 7:44 am

Michael Lewis wrote:The way to make the job easier is to do it more often. Once you get used to using the tools and protecting the surrounding surfaces you will be more relaxed and efficient.


Tobias Berg, a German classical guitar maker, mentions here http://www.rodgers-tuning-machines.co.u ... uitar.html that while he was working with Lakewood guitars he did work on about 4500 instruments over 6 years. I sure he has the hang of things by now. :D
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Re: End graft advice, please

Postby John Mueller » Mon Sep 09, 2013 5:59 pm

Mario Proulx wrote:Jigs are for when you intend to make multiple identical items. Or to overcome a lack of skills.


Lack of skill will make the jig fail as well.
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Re: End graft advice, please

Postby Tony Costa » Thu Sep 12, 2013 11:42 am

If you put some 120 or 220 grit sand paper on the back of the ruler, it will help prevent it from slipping while making your cuts. Cork is nice and wont damage the box, but the sand paper wont either unless you are sliding all over the place. Which you shouldn't because of the sand paper. Plus, this should be done before any finish prep has taken place.
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