colins
Luthier / Guitar Maker
Posts: 2,397
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Post by colins on Jun 12, 2016 19:17:08 GMT
Bit of a hiatus in the build as I'm waiting for some tuners and other hard wear to come from the US, They were sent some time ago but 'disappeared' on route, so sorting out who was going to pay the $600 replacement cost took some time, but I'm assured that some replacements are on their way. I guess that somewhere a cheap Chinese classical is now sporting a set of Sloan tuners! Anyway, just got the cedrela neck started, scarf joint cut on the bandsaw stacked and planed, then glued up. I also cut the slots on the Maccassar finger board while waiting. Now for many players I could have stopped at the fifth fret, as any frets above this are just for ornament, but for James I thought I ought to cut put the lot in. Well I hope to make faster progress when my goody bag arrives! Colin
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colins
Luthier / Guitar Maker
Posts: 2,397
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Post by colins on Jul 5, 2016 12:07:59 GMT
Customs finally got their act together and delivered my tuners and hardwear after a two month wait. The neck stack heel was assembled and glued in place. The headplate was cut to the correct angle for the nut, to do this I use a file with the safe edge running on the fingerboard plane, I use an old scraper to protect the neck. This gived me a perfect fit for the nut against the headplate. The head is cut to the traditional Torres shape. The slots are cut using my jig, first the tuner holes are drilled then the slots routed out in stages. Next the tuners trial fitted the Torres square ramps are cut, these are Sloan. The head/neck transition is shaped, then the neck and heel are sanded to a near finished shape on the spindle sander Colin
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francis
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Posts: 2,482
My main instrument is: Whatever I'm building...
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Post by francis on Jul 5, 2016 13:48:01 GMT
Superb - and that is definitely a 'jig' wow
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Post by RosieTGC on Jul 5, 2016 15:21:56 GMT
Looks like a lovely job done on those slots and wonderful tuners to compliment. Worth the wait!
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Post by earthbalm on Jul 5, 2016 18:00:40 GMT
Gorgeous work. And Francis is correct, that's a well engineered jig.
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colins
Luthier / Guitar Maker
Posts: 2,397
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Post by colins on Jul 27, 2016 10:17:32 GMT
The neck and body are finished, so time to combine the two into a GLO. The mortice in the body is cut for the neck extension. A first for me on a classical as of course I usually use a Spanish heel, must admit I like this new way! When the mortice is cut I put a couple of transfer spikes into bolt holes and press the neck into place to mark the insert positions. Then the neck heel is drilled and the inserts screwed and glued into place. The fit of the neck is checked and the heel flossed. The fingerboard then has three small holes drilled through the first and 11th frets for small brad nails and after careful placement the brads are tapped into the neck to provide registration keys for gluing. The fingerboard is then glued on with fish glue (no the water in the glue does not distort the neck, when the clamps are applied the amount of glue and water left in the joint is so small that the liquid content is minimal, do the maths!) The guitar with FB in place and the final neck shaping and the final fit of the heel to the body is flossed. Next job is to install the frets, I'm using Evo on this. So the FB is checked for evenness and a small relief is sanded into the bass side from the 5th fret. All the frets are in and the ends shaped. Colin
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colins
Luthier / Guitar Maker
Posts: 2,397
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Post by colins on Jul 27, 2016 10:21:30 GMT
Oh just a quick look at the start of the finish process, the guitar is sanded to within an inch of its life, and the pores filled with egg white and sanding dust slurry, then a couple of wash coats of shellac applied before the first of the many coats of Liberon Oil Finish is wiped on. Colin
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colins
Luthier / Guitar Maker
Posts: 2,397
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Post by colins on Aug 18, 2016 11:49:58 GMT
The finish has been applied and rubbed out with micromesh. An interesting aside, with mahogany and cedrela I always use a slightly lighter coloured piece of wood to make the stacked heel as this will be mainly end grain when carved and will darken more with the finish, hopefully if I get it right they neck and stacked heel should end up the same colour. The bridge is old Rio Rosewood from some Victorian furniture, so well seasoned! First job is to drill the blank for the strings, I use a bone plate on the back of my bridges, which use the 18 hole system, the bone plate is drilled first by hand and then double taped to the back of the bridge to act as a template. The 2mm holes are drilled 14mm deep. Here I have cut the bridge and the string trench on the router table, and cut down for the wings. Next the wings are cut on the bandsaw, I always use a feather board for this type of cut. The string ramp is shaped and the wings ramped and sanded to profile. This one came in at 22gm, right in the middle of my preferred weight, so job's a goodun. Colin
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colins
Luthier / Guitar Maker
Posts: 2,397
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Post by colins on Aug 23, 2016 9:48:42 GMT
The bridge is shaped to the top and the finish removed in the (hopefully) correct position. As there are no pin holes to fix the position I use four layers of masking tape to ensure that the bridge is located correctly when gluing. While the HHG is warming up I put the bridge to warm on an old plate warmer. Job done. Colin
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jwdaubney
Strummer
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My main instrument is: Acoustic Guitar
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Post by jwdaubney on Aug 23, 2016 10:09:33 GMT
An amazing job Colin!
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R the F
Luthier / Guitar Maker
Posts: 1,135
My main instrument is: bandsaw
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Post by R the F on Aug 25, 2016 17:00:02 GMT
Doesn't the bridge warp on the plate-warmer - or (a repulsive suggestion), do you just persuade it down with your cramps?
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colins
Luthier / Guitar Maker
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Post by colins on Aug 25, 2016 19:41:23 GMT
No, of course it doesn't warp at all just gently warms. I think I've said many times here about the need for the bridge to be a perfect fit to the top, so of course I don't just clamp it down what a ridiculous suggestion! The bridge is made to fit perfectly, I'm kind of insulted that you should even think I just clamp it to fit! On my tornavoz fitted guitars, with no access through the soundhole, I just use a rubbed joint. with no clamping at all.
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R the F
Luthier / Guitar Maker
Posts: 1,135
My main instrument is: bandsaw
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Post by R the F on Aug 25, 2016 20:55:31 GMT
I see.
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colins
Luthier / Guitar Maker
Posts: 2,397
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Post by colins on Aug 30, 2016 15:47:49 GMT
Well it's finished, a few rough pictures:
Top: European Spruce B&S/headplates: Madagascan Rosewood Neck: Cedrella Bindings: Cherry FB: Maccassar ebony Bridge: Brazilian Rosewood Tuners: Sloan Fitted with K&K classical pickup
And finally the guitar with its new owner up at Dave's.
Colin
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francis
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My main instrument is: Whatever I'm building...
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Post by francis on Aug 30, 2016 16:34:10 GMT
Hats off to you Colin - that is one beautiful instrument
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