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Build project - resonator guitar from recycled bits

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Re: Build project - resonator guitar from recycled bits

Postby Wonks » Sat Feb 09, 2019 1:14 pm

You could simply cut the body in half from side to side, then add a 4-5mm section to make the body longer. :D
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Sat Feb 09, 2019 5:01 pm

Yeah simple ;)

Of course since the neck is not glued to the body I could pack out the tail end of the perch pole which will push the fingerboard away from the bridge. I’ll need to make up the resulting gap between the body and heel, but I guess in the worst case it’s an option...
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Re: Build project - resonator guitar from recycled bits

Postby blinddrew » Sat Feb 09, 2019 5:20 pm

It's a blues guitar, it's not supposed to be in tune... ;)
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Re: Build project - resonator guitar from recycled bits

Postby Wonks » Sat Feb 09, 2019 5:22 pm

Are you able to rig up a tail piece, put a saddle in, fit the two E tuners, put some strings on and check the intonation? Whilst measurement is OK, there's nothing like the empirical test method.
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Sat Feb 09, 2019 8:12 pm

blinddrew wrote:It's a blues guitar, it's not supposed to be in tune... ;)
And with my slide technique it’s irrelevant anyway! :tongue:

@wonks yes I agree, I’ll only really find out when I rig up a temporary saddle
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Sep 06, 2019 9:12 pm

Well doesn't time fly. Pretty shocked to realise that I last updated this in February...

There are a couple of reasons - other stuff going on meant I had to cancel or shorten some visits to the workshop, and I also kind of hit a bit of a mental blockage with the project. Having got to the point where I thought I had a reasonable fit on the neck, after some close inspection Col said he thought I could get it a bit better, to him it didn't feel quite right. And for him it has to be right, or as least as good as it can be. But I felt that things were now getting beyond my skill level. I had found the neck fit difficult and a bit nerve racking, it's like snakes and ladders, take too much off in the wrong place and you lose alignment etc and you can be back at square one. At least I could. It was also complicated by the fact that the neck was never designed for that body and the body itself wasn't true. I found it difficult to visualise which of the many touching surfaces within the joint was not quite right.

However I didn't stop completely, I just did a few easy bits and pieces and avoided thinking about the neck joint.

For example I cut a heel cap from an old bit of walnut, shaped the heel and glued it on ..

Image

I also finished carving the heel, smoothing out the transition from the original neck to the new heel. Had to take a fair bit off the neck to do it, changing the neck profile in the process.

Image

And then used a pillar drill with a Forstner bit to drill the body for the grills. I then enlarged the holes using an abrasive bit in an electric drill. The grills will be finally glued in later:

Image
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Re: Build project - resonator guitar from recycled bits

Postby Folderol » Fri Sep 06, 2019 9:19 pm

Nice to see you back on here again :thumbup:
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Sep 06, 2019 9:20 pm

Thank you! :thumbup:
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Re: Build project - resonator guitar from recycled bits

Postby Wonks » Fri Sep 06, 2019 9:23 pm

Have you checked the intonation/scale length yet? And if so, is this the reason for more neck work?
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Sep 06, 2019 9:35 pm

The few bits in the last post was all the progress since February. Then last week Col gave me a stern talking to. Apart from anything else my crap is taking up space in his workshop.

So I set to on the neck joint again. After a couple of hours of work Col was finally happy. It doesn't look much different but I admit is no longer feels like it's fighting itself. I could now finally make the tapered shim to go between the fingerboard and body, put another couple of screws in and tighten everything up:

Image

Doesn't look much but that was a major step forward.
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Sep 06, 2019 9:45 pm

Wonks wrote:Have you checked the intonation/scale length yet? And if so, is this the reason for more neck work?

Not yet. Can't really check actual intonation until I get frets and a nut in. But I might need to shift the cone back a little. Stay tuned......

No the neck work was all to do with the joint not being quite right. When screwed in position it looked OK, but as you slid the neck in it felt like it wanted to twist. Basically Col said 'sorry not good enough'. I think it's a feel thing which I don't have. Well it is my first build!
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Re: Build project - resonator guitar from recycled bits

Postby blinddrew » Fri Sep 06, 2019 9:46 pm

Looks like a lot to me. It's not at the same level, but gluing the neck on my last guitar was definitely the most nerve wracking bit.
And i didn't quite get it right. :(
Fortunately you have Col on hand. :thumbup:
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Re: Build project - resonator guitar from recycled bits

Postby Wonks » Fri Sep 06, 2019 9:51 pm

Just keep going, Adrian. You'll get there.

You can tell your Bro to bugger off though if you want to. It is your build!
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Sep 06, 2019 9:56 pm

Nearly 40 years of planing, sanding and chiselling have given him some pretty big muscles so I tend to do what he says...
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Re: Build project - resonator guitar from recycled bits

Postby blinddrew » Fri Sep 06, 2019 10:02 pm

Plus you'd have to put up with years of 'I told you so'. :)
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Sep 06, 2019 10:43 pm

blinddrew wrote:Plus you'd have to put up with years of 'I told you so'. :)

Too right..
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Re: Build project - resonator guitar from recycled bits

Postby adrian_k » Fri Sep 06, 2019 10:50 pm

Having got over the hump, so to speak, I decided to rattle on and do something I'm a lot more comfortable with - fretting. Although just to make it more interesting, and in keeping with the reuse/recycle theme, I decided to sort through Col's tray of used frets to see if I could find enough of them to fret the Dobro. Here's the pile:

Image

There was almost a complete set of frets that had been fitted to a restoration but due to some problem had been removed before they were stoned and finished. They had been cut for use with a bound fingerboard so there was a bit of the tang (thing that goes into the fret slot) missing at each end, but superglue would fix that. I completed the set with some offcut fret wire of the same size (2.4mm x 1.4mm approx), although judging by the colour slightly different material. Hey ho.

To fit the frets, I checked the depth of the fret slots then widened out the tops of the slots with a hacksaw, taking care to only go down the smallest possible amount, less than the depth of the saw teeth. Some people say you don't need to do this but it helps avoid problems getting the fret all the way down. Then push the fret in and give it few firm taps with a hammer.

Image

Once all the frets are in the ends are glued down with superglue. Again, not everyone does this but it avoids problems later. Just run some glue under the ends of the fret and clamp it down for a few minutes using a fret clamp with a caul of the right radius.

Image

Where the fingerboard is over the body you can use sliding clamps:

Image

Then I chamfered off the fret ends using a file set at an angle along the edge of a block:

Image

Stoning and crowning be done later. And that's it for another few weeks!
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Re: Build project - resonator guitar from recycled bits

Postby Wonks » Fri Sep 06, 2019 10:54 pm

:thumbup: :clap:
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Re: Build project - resonator guitar from recycled bits

Postby Folderol » Sat Sep 07, 2019 7:41 am

Good to see you're over the hump :)
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Re: Build project - resonator guitar from recycled bits

Postby Wonks » Sat Sep 07, 2019 8:17 am

I'd have thought you are at a stage where you could clamp the neck to the body and fit a top and bottom E string to test the intonation out. If you need another 3-4mm of length, it's probably easier to add some wood to the back of the heel (as you are still working on it) and move the neck forwards, than to move the whole spider/resonator plate back by that amount.
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