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JoeDeF

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  1. It’d be really hard to choose, but the one thing I’m pretty certain of is that the the older I get, the higher up the list go the magnifiers, light sources, and other visual aids.
  2. I’m no expert, but the rough quality of the woodworking is not a good sign.
  3. I guess you could plane it. It's pretty hard on tool edges, but sharpening should take care of that. As for letting it cure upside down, I'd think that most of the System Three stuff would run off; it's that thin. Not sure about the West System. It's an intriguing idea though. EDIT- mounting it horizontally on a rotisserie would probably give you the most even costing. If you already have one for a UV curing cabinet, it might be worth a try.
  4. In terms of System Three, I have used Clear Coat, but Mirror Coat is the most commonly used among electric bass luthiers I know. They both self-level, which might be a problem in a violin-family fingerboard, which has a much tighter radius than an electric bass fingerboard. You might have to put on either a bunch of thin coats or pour one very thick coat and sand forever (and I hate sanding epoxy excessively--the dust is bad for your lungs so use breathing protection). Here are a few threads about Mirror Coat: https://www.talkbass.com/threads/system-3-mirror-coat-epoxy-on-fretless-neck.882223/ https://www.talkbass.com/threads/epoxy-on-a-fretless-warmoth-neck-by-lewis-bass-and-guitar.710064/ I haven't done any measurements, but the West System seems more viscous, and thus might be better for a violin-family fingerboard, as it probably won't run to the edges as much as the System Three stuff would. You'd probably get a surface shape closer to your desired profile, rather than a flattish one that you'd have to sand forever. With West System, I use 105 resin with, more often than not, 206 hardener, to give a bit more working time. But 205 will work fine. With 205, you can give yourself more working time by applying it in a cooler space, or mix it in a flat plastic pan (take-out food container, etc), and place that on one of those thin flexible cooler gel packs; the cooler and more spread-out the epoxy, the longer the curing reaction will take. Even newly opened West System 105 with 205 or 206 will have a slight amber tint. Older hardener will have a stronger yellow tint. I still use it, and have had no problems with it. I don't tend to keep it for years and years though; I go through a fair amount of it. I'm not sure how much you'd notice the tint over ebony. They make a special clear hardener, 207, which I haven't used, but you could try that: https://www.westsystem.com/207-special-clear-hardener/ With either epoxy system, you could probably do several thin coats as long as you don't wait too long between coats; while the epoxy is not yet quite cured, I would think that the new coat and the old coat underneath should still cross-link, making one thicker coat. Neither system has exhibited amine blush in my usage; if you do get an amine blush with an epoxy, you'd have to remove the blush before the next coat, and the various coats might exhibit "witness lines" if you sand through them while attaining your final surface.
  5. In the fretless electric bass world, it is common to use either epoxy or water-thin CA glue to coat many of the wide variety of fingerboard woods that are used. I have coated bass fingerboards with System Three Mirror Coat epoxy, and also West System epoxy. Both worked well. After coating you sand down to a final surface using a radius block. With a thick enough finish, even a softer fingerboard wood should last pretty well. Keep in mind that electric bass strings, especially roundwounds, are much more abrasive than any violin, viola, or cello strings I have used, and are very heavy. So, I'd expect an epoxy coating on a violin family fingerboard to hold up pretty well. And if it does wear away after a time, you could easily recoat. I have used CA glue as a finish before, but never on a fingerboard, so I can't comment other than that the fumes are intense. When I use it in large quantities for other jobs, I wear an organic-rated respirator and swim goggles to keep it out of my nervous system, and I use ventilation. On a fretless bass, a low angle of departure for the stopped string is desirable; this causes a sitar-like interference between the string and the fingerboard called "mwah" that many fretless players like and indeed chase after. Think Jaco Pastorius. In my experience, an epoxy coated fingerboard will have more "mwah" than it did before coating. I mention this because it is possible that a very hard (harder than ebony) fingerboard could have an effect on tone, though I'd expect that effect to be less because of the greater angle of string departure from the fingerboard.
  6. There are two general ways to color nitrocellulose: pigments and dyes. Pigments are relatively large particles that, when used in large quantities, tend to obscure the underlying wood grain. A huge amount of pigment (as used in "toners") can practically turn into paint if you lay enough coats on. But pigments tend to be color-fast (they don't fade as much when exposed to light over time). Dyes are much smaller particles that are much more transparent, allowing the grain to show through. But they often fade over time with light exposure. Some newer dyes resist fading better over a period of decades, but I don't think any are as fade-resistant as many pigments. It's a trade-off. But if you only use a bit of pigment to tint your lacquer a bit, the grain will still show through pretty well. As always, try things on lots of scraps. Cover the half of the "finished" scraps with something light-fast, and leave them in direct sunlight for a few weeks or months. That's no substitute for decades, but it'll at least show you what combinations fade pretty quickly (assuming that longevity of appearance is important to you).
  7. I don't know anything about the tailpieces, but bakelite is pretty heavy….
  8. Just a guess at someone's thinking: As the pegbox wears and the peg holes enlarge, the string hole will move in progressively toward the far pegbox wall. Someone might have placed the holes that way so that the pegs could be used for as long as possible, and so that the pegbox could get by as long as possible before rebushing. Note--I'm not advocating for this practice….
  9. If you do use the wood, keep in mind that, in the tear-out section about two-fifths of the way down the left edge (2nd picture), the grain runout is not just left-right, it is "up-down" (from the front of the billet to the back), then "down-up." You'll have to be careful with the direction of your cuts in that area.
  10. Looks like its two-thousandths (half of a thousandth) of an inch on the imperial side.
  11. "True Confessions" time here: I used liquid hide glue on a fingerboard only once, for an electric cello. I guess since it was a non-traditional instrument and I used titebond for other parts of it, I figured that it was an OK time to experiment with the liquid hide glue. The fingerboard end was hollowed out but, unlike a traditional cello, was glued flat to the body, so there was a "cave" at the end. Before gluing, I routed a small "v" channel on the underside of the fingerboard, so that I'd have an easier time removing it if necessary. And it was. I left the clamps on for several days, at which point the squeeze-out at the nut end and by the opposite end "cave" was still soft. So. I left it a few more days. At which point, I could feel a slightly rubbery squeeze-out along the neck/fingerboard joint. I scraped that flush, and maybe a week later, still clamped up, I felt a tiny bit more squeeze-out. Scraped flush, and a week or more later later, the same thing. I concluded that it wasn't likely to dry really hard or be reliable, so I removed it, cleaned it, and reglued it with hot hide glue as normal. No problems. In retrospect, it is possible that the "v" channel and meniscus in the "cave" gave the liquid hide glue a place to hang out and for its moisture to continue to work its way through the glue joint, inhibiting its drying. Maybe without those features, it would have worked better. But I won't do that again, so I won't find out.
  12. I'm not an expert on it, but fish glue releases way more easily than hide glue, IME. That's a very bad thing for repairs. I use it only for a few tasks where I want that easy reversibility (i.e. - an intentionally temporary glue joint like a positioning block on a jig, a pillar, etc). For those uses, I like it.
  13. I am not a bowmaker. But I have a question for the bowmakers here: is the runout in this blank is acceptable, or is it going to be problematic for the longevity of the stick or for the making process? To Ranala: It's great that you're making a bow, and I look forward to seeing your project progress.
  14. Your cello quartet played da spalla? Did you take pictures? I hope no one's neck got impaled!
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