francis
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My main instrument is: Whatever I'm building...
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Post by francis on May 21, 2016 9:04:13 GMT
That looks like a success all round
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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 May 23, 2016 21:51:34 GMT
What you're about to see may be a shock to the system. My work is appallingly scruffy compared to the impeccable stuff you will have been looking at on any number of other builds which surround me - or maybe they take their pictures from further away or photoshop them or something. Suffice it to say I'm more than a little embarrassed but I can't retire gracefully so far into the build. Not much progress, I'm afraid. Just drilled some holes, sanded some bits of laburnum into toothpick-sized pieces and glued them through the bridge. The glue is Cascamite (wash your mouth out with soap and water) tinted with a little raw umber, a little yellow ochre, a little chrome yellow and a little chrome orange. These went in one side and came out the other. They are only thin but there are lots of them. I can't see this bridge launching itself across the room. The strange blocks occupying the saddle slots are very overheight "sub-saddles". They are a good fit but are easily pulled out. When cut to height they will be slotted accurately on their tops to take bits of fret-wire which will be the final departure points for the strings. ps You may have noticed that one little dowel came up where it shouldn't have. I'll sort it out later...
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davewhite
Luthier / Guitar Maker
Luthier
Aemulor et ambitiosior
Posts: 3,548
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Post by davewhite on May 24, 2016 7:30:00 GMT
My work is appallingly scruffy compared to the impeccable stuff you will have been looking at on any number of other builds which surround me - or maybe they take their pictures from further away or photoshop them or something. Suffice it to say I'm more than a little embarrassed but I can't retire gracefully so far into the build. Rob, Neatness is over rated and can mark the onset of OCD The magic you need in your hands is the ability to make instruments that people want to play not just to look at and admire. The neatness thing you can work on as you make more instruments if the fancy takes you. Keep showing your work with pride - it's appreciated.
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francis
C.O.G.
Posts: 2,483
My main instrument is: Whatever I'm building...
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Post by francis on May 24, 2016 7:41:20 GMT
Nothing wrong at all Rob - echo Dave's words entirely. Just enjoy what you're doing and keep posting the piccies...
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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 May 24, 2016 8:19:09 GMT
Thanks for the support, chaps. It does read like a transcript from LA (Luthiers Anonymous), doesn't it? Still, as you say, I'll be all right if I just "keep posting the piccies"!
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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 May 24, 2016 22:01:45 GMT
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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 May 27, 2016 22:24:38 GMT
Got on with making a fretboard. It's laburnum, like the bridge, but this time I'm going to leave it unstained; I'll have to oil it to keep the dirt out. I started by thicknessing the blank to 6mm (with a plane) and then made sure the sides were square before inserting it into my jig to cut the frets. Here's a picture of the jig in use a couple of guitars ago with a Rocklite fretboard: Now last time I used it I noticed it had cut all the frets slightly off square and I only managed to save the day because the blank was wide enough to cut the final shape out at a slight angle. I was ready for it this time so just marked each fret in the jig and then used a square to finalise their positions before cutting. A bit laborious and I need to sort out the problem but at least I now have fret-slots at right-angles to the side of the blank: Next I planed a 16" radius across the board (approximately at this stage) and then cut it to shape. (No photos at the moment but tomorrow's another day). Then something rather odd happened. I was trying to measure the precise point on the neck to locate the zero-fret of the fretboard but kept coming up with slightly different positions depending upon how I measured it. When it comes down to critical measurements like this, I always turn to my "made in W Germany" steel rule which I've had for about 25 years. It's only 500mm long, unfortunately, so not really up to this job but I decided to check my other measures against it. Here are two of a number of results: (The rule in question is the one without pigment in the engraved figures). It turned out that everything I measured it against said it was coming up about 0.4mm short over a distance of 500mm. That normally wouldn't matter (when you're mending furniture and so on) but, with something critical like placing frets and measuring out the nut-to-saddle distance, it can mess things up quite seriously. Now I know that the jig for marking fret positions was made using this rule so I'll have to stick with it for the time being to position the zero fret and so on. Isn't it a bit odd, though, that a fairly expensive rule which, incidentally, came from Lord's in High Wycombe, should be so inaccurate? I'm amazed and keep thinking I must be at fault somehow but I can't see how. Well, that was exciting, wasn't it? More excitement coming soon (I hope).
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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 May 29, 2016 16:33:19 GMT
As promised above, I have taken a snap of the fingerboard shaped to near final outline: It's not actually attached to the neck yet mainly because I'm having a few issues with the width of the neck where it meets the body and beyond: i.e. the bottom bit of the photo above. You can possibly see that I've had to glue a bit of extra mahogany from about fret 7 to fret 13 because I appear to have gone a bit narrow hereabouts - very professional, I hear you cry. Anyway, I'm sure I'll get away with it; I've done worse - much worse... I think the problem stems from my habit of redesigning bits of guitar - or, at least, slightly re-dimensioning - on my computer drawing and then never really making it clear to myself which version I have settled on. Thus I have a huge page of drawings which I can zoom in on to see details of design or measurement but I tend to forget that the bit I'm looking at might not be the final version. Why don't I show you the whole page to give you the idea? Here it is: Now God knows how many necks, for example, there are on there so how am I supposed to know which is the one I'm building? This is further complicated by the fact that one of the drawings is of the neck and bridge position as they actually turned out on this particular guitar; some of you may remember I decided to follow Somogyi's advice on attaching the neck at a slight angle and that I went a bit far. So I've got drawings of a straight neck, a slightly off-centre neck, and a slightly more off-centre neck and they're all on the same page of drawings. You have to keep your wits about you with my drawings I can promise you! Anyway, I decided to attach the fret-markers to the fretboard before gluing it down because the process would involve cutting right through the fretboard, which is more easily done when it's in a vice rather than fixed to a guitar. Of course, my mind immediately went to RosieTGC 's build and her exceptionally striking markers - not forgetting her interesting layout: frets 3, 5, 7 and 12. Could I challenge her skill and originality? No, I couldn't. I did get as far as making up a strip of licorice-allsort-inspired mahogany/maple inlay but decided it wasn't very impressive and you would probably not be able to see it in a dimly lit room - the only place you would want to play one of my guitars. Anyway, here's the bit I didn't use: It's only 4.2mm thick in reality so you'll have to excuse the bear's-arseness of it in this photo. In the end I decided that, if I was going to go minimalist with my layout, I should also go minimalist with the markers - especially since this is the way to avoid unflattering comparisons with Rosie's work. I went for camel bone, of which I have a stock (and which needs to be kept well away from Jack the Jack Russel who feels that any bits of bone lying around the place are clearly there to supplement his diet). The first guitar I made had markers copied from a British-made Westone Cutlass guitar and were quite nice if somewhat invisible: So I reached for a little round file and made some little rounded slots to receive bits of rounded camel bone in the appropriate places: I was wondering what to do about marking the frets beyond the 12th and noticed my wife doing a bit of gardening just outside the workshop, it being Sunday. She knows nothing about guitars and has even less interest in what I have to say about them but I held her attention for long enough for her to say, "Don't bother" after I had explained the choices. So anyone with the temerity to play way up there is on their own, I'm afraid. Besides, the markers would clash with the chevrons which run alongside the fretboard here. I've also been contemplating a slightly radical - can you have "slightly radical"? - modification of the soundboard bracing. Here's a reminder of how things stand (and, incidentally, this is just a tiny bit of the big drawing up above; we could have a little competition to see if you can find it! but we won't): The plan could be to stop the two braces which run up from the bridge to the waist short of the cross-over point with the /\ braces. I somehow feel that this whole area is rather over-engineered. I've taken the ends of all the braces around the periphery down to nothing before they reach the sides in order to free up the soundboard as much as possible and it's only these two braces which still seem to pin it down. I was further tempted to thin down the /\ braces to open up even more of the soundboard, which is why I was contemplating davewhite 's flying buttresses on his thread. (He might even like the idea if I promise to include his UTBs, which (you may have noted) I have forgotten to attach so far....) Oh the thrill of it all!.
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francis
C.O.G.
Posts: 2,483
My main instrument is: Whatever I'm building...
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Post by francis on May 29, 2016 19:36:33 GMT
I keep 1 600mm steel rule for fret and position measurements - never checked it against anything else. So all my stuff is consistent(ly out)
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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 May 30, 2016 18:08:09 GMT
More work on the neck and environs today. There is a bare patch of soundboard between the sound-hole and the neck which remains untainted by polish in readiness to receive the upper end of the fretboard. This would appear to offer a simple process of gluing up and sticking down but things are never quite that simple. In this case there are two little things to do before the sticking can go ahead: to remove a sliver of softwood at the side of the patch and replace it with mahogany since this edge will show on the side of the neck of the finished guitar; to glue a shallow wedge to the patch which can be sanded flush with the back-angle of the neck so as to provide a truly flat surface to support the upper portions of the fretboard. I started by removing the piece from the edge of the patch and gluing in a small piece of mahogany: I then cut a piece of constructional veneer sapele (about 1.5mm thick) to fit the patch; this should, I suppose, be mahogany again but I don't think anyone will notice the difference from the tiny wedge appearing between the fingerboard and the soundboard since they're both reddish: (Could you please fail to notice the ugly gap I seem to have between the neck and the soundboard adjacent to this patch; it'll disappear once the fingerboard in applied and won't cause any structural problems.) I searched the floor of the workshop for a piece of wood the right shape and size to spread the force of the cramp over the surface of this piece but to no avail; the floor is far too tidy. (Irony). But I did have a piece of wood the right shape and size to do the job so I used that (with hot hide glue, I hardly need say): Once the glue had gone off enough to support the piece while I worked on it, I planed and sanded it flush with the face of the neck as you can see in the picture below: At this point I should have been able to glue the fingerboard down to the neck but one or two other little matters needed to be cleared up first: I had decided it would be better to insert the fret-markers before attaching the fretboard to the neck and, as usual, I had become disenchanted with the way in which I had finished the face of the machine head much earlier in the build. I took my carefully prepared pieces of bone and glued them into the slots (hot hide) and then sanded them flush to the surface: (Bear in mind that this isn't as rough as it looks; the slots are only 0.6mm wide). I then took a hottish iron to the sapele veneer on the head and levered it off when it was warm enough. I replaced it with a layer of maple followed by a thin veneer of something that looks a bit like sapele but is a bit more interesting and came in a selection of veneer off-cuts I bought a long time ago: True, you can't see it anyway in this photo so I'll try to feature it in my next post. True to the spirit of my attempt to voice the soundboard in what is effectively a finished guitar, I have begun to wonder if I could string it up without a back on it. Oh, I know I will have shocked some amongst you with such idiocy but I have a cunning plan: There are quite a lot of 6mm plywood panels (taken from my 1930s doors) lying around in my wood-store - don't start imagining anything with racks and such-like; it's just a few piles of wood and mdf and things. I am wondering if I could cut fairly precisely dimensioned slots into the side of a piece of this ply so that it would fit tightly and supportively over the side of the guitar (which is, you will remember, very sturdy) at the side of the neck join and then again at the far end alongside the tail-block. If I added another at the other side of the neck join and then, perhaps, linked in a similar piece going across the waist and another across the lower bout, I would probably have something which would replicate the structural performance of the back but would still allow access to the back of the soundboard for shaving and sanding - voicing - with the strings on. This is quite possibly a daft idea but it's not the first I've had. I'll ponder it while I get on with gluing on the fingerboard tomorrow.
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ocarolan
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Post by ocarolan on May 30, 2016 18:25:42 GMT
Happy pondering - fascinated to see how this back door to the soundboard might turn out! Keith
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francis
C.O.G.
Posts: 2,483
My main instrument is: Whatever I'm building...
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Post by francis on May 30, 2016 19:45:11 GMT
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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 May 30, 2016 20:18:43 GMT
You're emoticating again, Francis.
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francis
C.O.G.
Posts: 2,483
My main instrument is: Whatever I'm building...
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Post by francis on May 30, 2016 21:16:33 GMT
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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 May 31, 2016 18:40:45 GMT
Spurred into further action by someone threatening to bring in some oak dining-chairs for reframing, I got on with what I had started yesterday. To begin with, here is a picture of the newly veneered head: I admit to being slightly worried because the top layer is only 0.6mm thick veneer and I know from experience how easily this can be damaged around the edges; I've even started the damage myself in trimming it down to size! Still that will be relatively easily repairable for me or someone else. I'll also chamfer the corner to take the thin stuff away from the edge whilst revealing a nice white line of maple below. I cut holes through it as you can see in some of the photos below to finish off the job. I also cut the neck end of the veneer back to within 4mm of the projected end of the fretboard to leave space for a nut and then set about installing the fretboard - with, of course, plenty of cramps and oodles of hot hide glue: I was almost thwarted here when I swiped my battered old electric iron on to the concrete floor - accidentally but dramatically - and completely disabled it. It's in the bin. The plan had been to warm up the neck and fretboard with a few sweeps of a nice warm iron but now I will have to buy a new one. (Would you believe that you can buy a "steam iron" from Argos for £4? I'll get on to it tomorrow.) I ended up carefully shielding the polished soundboard - you see, I do learn from experience - and then sweeping up and down a few dozen times with my hot-air gun set to medium heat. With so many cramps and and so little time and such a racing heart I made sure I had three pins strategically placed to locate the board quickly and precisely: And, would you believe, nothing seemed to go wrong! I gave it all time to settle down and then removed the cramps and applied a straight edge to see how near the predicted mark my fingerboard was shooting. It just skims the top of the bridge, which (miraculously) is within about 0.2mm of where it was supposed to be. That's two things right in a row. I was even inspired to trim down my oversized sub-saddles to nearer their final dimensions and roughly shape the tops of them to match the radius of the fingerboard: Now. even if I do say so myself, I was struck by the rather pleasant colour of the bridge on the soundboard and, when she arrived home from earning money for me, my wife commented that the fingerboard looked almost metallically golden. A trick of the light, no doubt, but I'd go along with that (since I didn't actually have a hand in producing the wood myself; I leave that sort of thing to God or evolution or particle physics or whatever): It's bare at the moment and it will be interesting to see what happens when it's oiled. (Just had a smutty thought which I'll omit). To get back to yesterday's musings, I took a few moments to slot a piece of ply and to slide it on to the back of the guitar at the end of the day. With two like that and one or two going across (if I can manage to interlock them), I reckon I just might be on to something. The main danger that I see is that it could put some nasty depressions in the sides of the guitar so I'll have to put some kind of padding in between the ply and the sapele. A shame I can't end on a nicer image but end I must.
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