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Build project - resonator guitar from recycled bits

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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Jun 01, 2018 4:10 pm

blinddrew wrote:Very impressive. All I've been doing on mine for the last few weeks is sticking layers of oil on, so it looks pretty much exactly like it did a month ago.

I'm looking forward to getting to that stage!
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Jun 01, 2018 4:11 pm

Next I planed the bindings down flush with the body..

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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Jun 01, 2018 5:33 pm

Planing only gets you so far, to finish off the bindings I have to then take a cabinet scraper and try to get them really flat. Although this is quite a satisfying job it is murder on my poor old arthritic thumbs. It's also quite annoying that I cannot get the knack of sharpening the scraper and have to ask Col to do it..

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Lots more scraping and sanding ahead but the body now feels like it's a guitar...
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Jun 01, 2018 5:49 pm

It's great how a bit of scraping and sanding starts to make problem areas less of a problem.

Here's a bit where I was careless with the router and then got some veneer stuck in it. Had to scrape a good three quarter of a mil off but looks fine now..

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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Jun 01, 2018 5:51 pm

And here's the binding I split while trying to bend it, before and after. You can see where it has been glued but it's enough like a grain line not to worry about it..

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Re: Build project - resonator guitar from recycled bits

Postby blinddrew » Fri Jun 01, 2018 6:20 pm

Shaping up very nicely! Couple of good saves there as well. :)
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Re: Build project - resonator guitar from recycled bits

Postby Wonks » Fri Jun 01, 2018 6:57 pm

adrian_k wrote:And here's the binding I split while trying to bend it, before and after. You can see where it has been glued but it's enough like a grain line not to worry about it..
But you'll know it's there.... ;)
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Jun 01, 2018 7:36 pm

Wonks wrote:
adrian_k wrote:And here's the binding I split while trying to bend it, before and after. You can see where it has been glued but it's enough like a grain line not to worry about it..
But you'll know it's there.... ;)

:bouncy: Yep and all the others I haven’t mentioned!

Also did some work on the neck but am bored waiting for pics to upload..
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Re: Build project - resonator guitar from recycled bits

Postby zenguitar » Fri Jun 01, 2018 8:13 pm

Ah... the thumbs. Feel the burn ;)

I was taught how to sharpen a cabinet scraper by one of my fellow students at the Totnes School of Guitarmaking many years ago. I use one of my bevel edged chisels as a burnisher so I don't want any distractions.

Very nice work, well done :)

Andy :beamup:
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Jun 01, 2018 8:52 pm

Thank you Andy, much appreciated. :)

Maybe you could do a post on how to keep a scraper sharp? Mind you I don’t fancy trying it with a chisel :o
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Re: Build project - resonator guitar from recycled bits

Postby zenguitar » Fri Jun 01, 2018 9:43 pm

Not sure I can explain clearly in a forum thread. It's not complex, but the details matter.

Essentially, before raising a new burr you need to remove the old one. You lay the scraper flat on a fine sharpening stone and stone the burr off sideways. Once the burrs are removed on both sides of each edge you then hold the scraper vertically and stone the edges flat and square.

With the scraper flat on the bench you use the burnisher on both sides of each edge hard, about 20 strokes for each edge. If you were to view the scraper close up from the side you would see that the burnishing has changed the edge from flat to slightly concave.

Then you can raise the burr. Put the scraper in a bench vice with one of the concave long edges vertical. With the burnisher horizontal you need to draw it along the concave edge to flatten it out which raises the burr. Then you need to turn the burr which is one stroke with the burnisher at about 30 degrees from horizontal, one on each side. Then flip the scraper over in the vice to raise the burrs on the other edge. When raising and turning the burrs you can start at one end, but I developed the habit of starting from the middle and working out with two half strokes.

Hope that makes some sense :thumbup:

Andy :beamup:
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Re: Build project - resonator guitar from recycled bits

Postby Wonks » Fri Jun 01, 2018 10:24 pm

So basically the opposite to 'wax on, wax off' in The Karate Kid. Here it's 'burr off, burr on'.
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Re: Build project - resonator guitar from recycled bits

Postby zenguitar » Sat Jun 02, 2018 12:38 am

Yep, you got it mate :)

Andy :beamup:
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Sat Jun 02, 2018 9:04 am

Thanks Andy :thumbup:

Hmmm... I think it’s my burnishing that’s letting me down. Next time I’m in the workshop I’ll get up early and get some practice in..
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Sat Jun 02, 2018 6:34 pm

While I was waiting for glue to dry I had a look at the old Hofner neck. There's a block behind the heel and that will have to come off, and the heel is too small to be useful.

First the block - I wasn't sure what was inside so took it easy and sure enough the truss rod comes all the way to the end. Bit of a bugger as it means I can't remove the whole thing so will need to cut into the guitar top to fit it. Sawed what I could away then used a 'saw rasp' to take it down flat as far as I could. That's a great tool...

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Also squared off the remaining block with a chisel.
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