10 Attachment(s)
Re: Andy Tobin Cedar Bouzouki Build Diary
Hi Everyone Here's the next instalment.....
The bouzouki is now just about ready for finishing, just a final rubdown with 320 and then 400 paper before getting it ready.
Attachment 157978
Attachment 157979
Finishing the instrument is something I like to do myself. Spraying is not that difficult, as long as you have reliable compressor powerful enough and a good clean spray gun. These instruments get a lot of hard use (or at least my ones do) so the finish needs to be able to take a bit of punishment without compromising the tone, so finding the right finish is important. There's little doubt that the thinner the better tonally, and a shellac or French polish would be ideal, but it just wouldn't stand up to the use these instruments are subjected to. So for the past 10 years or so I've been using a Morrells two pack AC lacquer. Very tough and resilient, easy and forgiving to spray and with enough build that I don't need to use a grain filler which can be very detrimental to the tone. I also like to use use a satin finish which is beautiful to look at and feels lovely and is FAR less labour intensive than a gloss finish.
So here's the instrument, sprayed up but not polished....
Attachment 157980
The next job after polishing is to finish off the frets. After the frets have been fitted, the ends will need filing and the surfaces dressed.
Attachment 157982
If necessary, adjust the truss rod so the neck is perfectly flat and then file the surface of the frets so that they are perfectly flat relative to the adjacent fret. I use a neat little tool for this....
Attachment 157981
The tool has 4 perfectly ground edges and sits over three frets, each one should be perfectly flat with no rocking. If there is carefully file the centre fret until the rocking disappears, then move on to the next fret and repeat. By the time you've finished you'll have perfectly adjusted frets. Then after re-crowning a good polish with 800 and 1200 paper and 0000 grade wire wool you'll have a perfect fretboard.
Attachment 157983
Now the fun really starts when it's time to put it all together. First the machine heads go on...
Attachment 157984
Then the tailpiece. I make this from 16 guage solid brass sheet which I cut and fold to shape. The string holes are drilled and filed smooth, the fixing holes are drilled and countersunk, and then the finished piece is polished. It's a very simple design but works really well providing a good solid fixing for the strings.
Attachment 157985
Next up is the bridge. This is made from ebony which along with the bone saddle makes for the most efficient way of transferring the vibration from the strings to the top. In this photo I'm routing the compensated slot for the saddle using a simple MDF jig and my trusty Bosch router.
Attachment 157986
Next is the bone saddle and nut...
Attachment 157987
And then finally the strings...
All the best
Andy
Re: Andy Tobin Cedar Bouzouki Build Diary
Great stuff Andy. I love the look of the cedar top. Might be a stupid question, but how do you polish the body?? do you use a buffing wheel and some sort of compound?? I've heard that some luthiers us a form of compound used to polish cars!!
Quick question re the bridge, do you think full contact between the bridge and the body (that you use) is better than the bridge types that have 2 or 3 points of contact. Hope that makes sense.!!
The owner of this bouzouki is going to love it!! I often wonder do great luthiers like yourself fully realise the joy and endless fun your creations bring to us demanding musicians!!!
All the best Andy, would be great to hear the instrument at some stage.
John
Re: Andy Tobin Cedar Bouzouki Build Diary
Quote:
Originally Posted by
Reinhardt
Great stuff Andy. I love the look of the cedar top. Might be a stupid question, but how do you polish the body?? do you use a buffing wheel and some sort of compound?? I've heard that some luthiers us a form of compound used to polish cars!!
Quick question re the bridge, do you think full contact between the bridge and the body (that you use) is better than the bridge types that have 2 or 3 points of contact. Hope that makes sense.!!
The owner of this bouzouki is going to love it!! I often wonder do great luthiers like yourself fully realise the joy and endless fun your creations bring to us demanding musicians!!!
All the best Andy, would be great to hear the instrument at some stage.
John
Hi John - Finishing / spraying / lacquering the instrument is probably the least enjoyable part of the whole process, so when I say I like to do it myself, I don't really, I'd just sooner do it myself rather than hand it over to a total stranger who might dent it, drop it, break it etc.... paranoid, probably !!
But to answer your question, some years back when I finished my instruments with a high gloss lacquer I did use a polishing compound and buffing wheel. These are helpful to produce a high gloss finish, but the whole process is incredibly labour intensive and therefore costs much more. Grain fillers, many more sprayed coats, lots of cutting back, more spraying, more cutting back, more spraying, leaving it for days to harden, then polishing. Also a high gloss finish needs to be perfect as any flaws stand out like a sore thumb !
The process I use today is still labour intensive, there's no getting around that, but the Morrells lacquer makes life much easier. It's a fairly high build finish so you don't need that many coats, which is a big advantage tonally, it's also fast drying, so you can spray and cut back within a few hours and spray again, and so on until there's enough finish. Cutting back between coats can be done with 320 paper, then after the top coat, 400, 600, 800 grades and finally 0000 wire wool with the grain will give you a beautiful flat satin finish, tough as boots.
Re. the bridge, I've always made them so the entire surface sits on the top. I did experiment a number of years ago with a Mandolin / Jazz guitar style adjustable bridge, but I didn't think it sounded as good.
Yeah, still working on the video. The bouzouki will be with me for a while yet as the new owner is coming over to collect it in a couple of months. I'll get some good shots of it strung up in the next few days.
All the best
Andy
Re: Andy Tobin Cedar Bouzouki Build Diary
I agree about the full contact bridge. Spreads the load across the top and and thus assists the sound.
Re: Andy Tobin Cedar Bouzouki Build Diary
Andy,
I have thoroughly enjoyed reading this thread. I have just started to build a bouzouki to see if I can improve on the sound of my current TC bouzouki. It is refreshing to see that people like yourself are so willing to share the expertise they have developed over the years. I really appreciate it and have learned a lot from reading this.
Thanks for sharing
Bob Schmidt
Re: Andy Tobin Cedar Bouzouki Build Diary
Quote:
Originally Posted by
irishmando
Andy,
I have thoroughly enjoyed reading this thread. I have just started to build a bouzouki to see if I can improve on the sound of my current TC bouzouki. It is refreshing to see that people like yourself are so willing to share the expertise they have developed over the years. I really appreciate it and have learned a lot from reading this.
Thanks for sharing
Bob Schmidt
Hi Bob - That's great, I'm really glad that you've enjoyed the posts and have found them helpful. I'll take some shots of the finished instrument and put them up soon.
All the best
Andy
Re: Andy Tobin Cedar Bouzouki Build Diary
Hi Andy, wheres the photos of the finished instrument!! Get snapping. As you all might have guessed I'm a great fan of Andys work. Here's a great example of one of his bouzoukis being played by Benji Kirkpatrick.. enjoy..
John
https://youtu.be/eh3nI49tWaM
10 Attachment(s)
Re: Andy Tobin Cedar Bouzouki Build Diary
Re: Andy Tobin Cedar Bouzouki Build Diary
Absolutely superb photos Andy!
Re: Andy Tobin Cedar Bouzouki Build Diary
Fantastic Andy, good honest work & a great thread for this forum.
1 Attachment(s)
Re: Andy Tobin Cedar Bouzouki Build Diary
“ hey you guys and gals, have a look at this. A pal of mine Seanie McGrath from Clare in Ireland recently commissioned a bouzouki from Andy and look how its shaping up. Andy is incorporating some different woods than normal such as bog oak and sycamore veneers which came from the homestead of my buddy. Looks pretty cool don’t ya think!!” Love the use of the veneers on the headstock. Seanie is counting the days in anticipation of his new baby!!! Attachment 164647
1 Attachment(s)
Re: Andy Tobin Cedar Bouzouki Build Diary
Seanie's bouzouki coming on nicely, nearly there!!! Bog oak rosette, Flamed Maple binding and sycamore on headstock. Looks gorgeous. Nice job Andy!!
Attachment 165037
Re: Andy Tobin Cedar Bouzouki Build Diary
Quote:
Originally Posted by
Andy Tobin
Hi Everyone
I've recently started building a Rosewood and Cedar bouzouki for a list member. So here's a photo diary detailing each stage of it's construction. I hope that you find it interesting.
Attachment 155630
Here the neck mahogany has been squared and marked up, truss rod inserted and the headstock inlay fitted.....
Attachment 155631
Attachment 155632
After bandsawing the excess, carving can start. The offcuts fro the neck can be used for the top block and also the kerfed linings....
Attachment 155633
A Stanley knife and a good sharp spoke shave are the best tools for this job.
Attachment 155634
Here most of the shaping has been finished. Final profiling will done when the instrument is fully assembled. Now the angle of the neck block will be cut very precisely before fitting into the building jig.
This is probably one of the most important stages as the geometry and positioning of the neck in the jig will setup the playing angle and the height of the strings at the jig.
Attachment 155635
Attachment 155636
More to follow....
All the best
Andy
PS - any ideas how to make the photos a wee bit bigger ??
Hi Andy, coming a bit late to this really great thread, just wondering if the heel block is a separate piece glued on and how do you shape it, thanks for the very informative posts
Colm
Re: Andy Tobin Cedar Bouzouki Build Diary
Hi all, just back from a bouzouki gathering in County Cork, Ireland. 6 members (bouzouki nerds)of the Irish Bouzouki Forum gathered together in a beautiful rural setting to compare each others bouzoukis. There were tons of them!! All were brilliant and each one had its own different sound and personality. I had my large Body Tobin with me and it was greatly admired by all who were there. Andy makes fantastic instruments and is a true gentleman to boot. Highly recommended. Just ask Manus Lunny!!!!
John
Re: Andy Tobin Cedar Bouzouki Build Diary
Hi Colm, Well done for finding this one in the archives!!! Yes, the heel block and neck are all one piece. The heel is marked up using a template and offset the thickness of the sides. I then cut it out carefully on a bandsaw. When the neck and sides are fitted into the jig the sides will fit into the rebate if that makes sense.
Hope that helps.
All best
Andy
Re: Andy Tobin Cedar Bouzouki Build Diary
Andy. Thank you for sharing this build. I’m about to start my own build. I would like it to have a fixed bridge with pins. In your opinion am I sacrificing anything by using that over a floating bridge?
Re: Andy Tobin Cedar Bouzouki Build Diary
Quote:
Originally Posted by
Wayne C
Andy. Thank you for sharing this build. I’m about to start my own build. I would like it to have a fixed bridge with pins. In your opinion am I sacrificing anything by using that over a floating bridge?
Hi Wayne
To be honest I've never been a fan of bouzoukis with pin bridges. To me they just don't sound like a bouzouki should. Much of the characteristic voice of a bouzouki comes from the floating bridge and the pressure of the strings pushing down on the top. The forces on the top are completely different - compression as opposed to shear (guitar bridge). The floating bridge and the compression on the top gives that crisp attack and resonance. Now, don't get me wrong there are some great instruments out there with pin bridges, but if you are after that characteristic punchy bouzouki voice, I'd definitely stick to a floating bridge. The same goes for guitar bouzoukis - to me they all sound like guitars with 8 strings. This is mainly down to the body size and the bridge arrangement.
Your choice of bridge will also affect the bracing pattern that you use for the top. Go with a pattern that best supports the compression of the strings. This isn't necessarily an X bracing pattern. This pattern was developed for guitars and a shear force bridge and isn't really designed to support a downward compression force.
But whatever system you decide to go with, good luck and I hope it turns out well.
All best
Andy
Re: Andy Tobin Cedar Bouzouki Build Diary
Quote:
Originally Posted by
Reinhardt
Hi Andy, wheres the photos of the finished instrument!! Get snapping. As you all might have guessed I'm a great fan of Andys work. Here's a great example of one of his bouzoukis being played by Benji Kirkpatrick.. enjoy..
John
https://youtu.be/eh3nI49tWaM
Unfair Reinhardt!
You hear this song, and then it really doesn't matter what the maid looks like.
Though of course, a beautiful instrument too.
Really nice work, Andy.