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About jezzupe

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    Grand Poobah

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    bela marina
  • Interests
    I used to do other stuff, now I just make violins

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  1. Messiah wood (again....)

    Peter thank you very much for taking the time to make this presentation. I think it will be helpful explaining the basis for the findings, which statistically seem quite air tight. What you need to do now is market a "violin dendro dna kit" that can be sold online. That way people can dendro their own violins then send you the data in the hopes of finding something that may be attributed to a great maker or wood supplier to a great maker and at the same time increases the data base for violins specifically.
  2. 100 Year Old Violin Pegs ??? maybe, click pegs....maybe you'll see something else you like?
  3. beyond economic repair ?

    Look for tight polyester plaid pants and bulges
  4. Look at those lawyer hands in action! looking good!
  5. Gasparo 'da Salò' violas

    I came for the music, I left because of the conformist hipster beard.
  6. My advice may be colored by my locality. It will be different everywhere depending on where you live, but in my area there are several "music shops" that have excellent reputations and qualified people. From student level stuff available at "The magic flute" to about 40min away at Ifshin where professional level instruments may be had. There are a few more as well in the SF bay area, so I guess we're just spoiled out here with selection. So I would say my experience is very different from yours based on my location. I do not think I would recommend going to the guitar center however.
  7. Take your son to a local music store, ask the sales people to group together instruments in your price range, have your son play the instruments and choose the one he likes best. End of story, I shall refrain from further comments in the form of opinions.
  8. beyond economic repair ?

    I would'nt hesitate to spend 300 mIOTA on it.
  9. beyond economic repair ?

    I'm not sure how far he is from the sf bay area,but I know Bruce Sexauer and Tony Lane work together often , basically a top guitar guy and violin guy.
  10. Not wanting to speak for the great Davide Sora, but my take is that a very razor sharp scraper used as the final pass "cuts" the wood and therefore does not fall into the softer grain as sand paper does, this reducing grain mottle or micro accentuation of grain features, the scraper sharpness makes it so the material acts more homogeneous. Fine grit papers heat up very quickly, this "burnishes" the material also aiding in it jumping out more. The angle that you hold the scraper also effects the final look, this is dependent on the burnish angle that you put on your scraper, I like it at a 90' angle, then tilt it some. The wood itself will also have a direction that "smooths/cuts" better one way or another, a nicer finish may be had going for the bottom to the top with the grain, or the other way around depending on the "dog fur with grain lay up" of the fibers
  11. beyond economic repair ?

    This post is an example of why I build my guitars like violins with an overhang lip, as this makes pulling the top very easy as compared to a "bound" or binded edge as seen here andas is standard on guitars.... This looks like a Chanot and is well worth restoring IMO, if it is, however based on it's guitar like construction I would think a topnotch guitar repair person would be a better choice,simply based on the fact that the ones who are good have the ability to deal with binding removal and such.They do it more and see it more as most violins are not built as such. Edit not a Chanot? if a copy I'd rethink my advice...
  12. Violin geometry references

    Froggy went a courtin' he did ride.... keep the ratios, then you can scale it anyway you want uh;huh uh,huh
  13. to explain this some more in order to aid understanding of what we are seeing,,,,we will refer to this as an "artifact" ie. something left behind from a process that gives one clues as to what that process was. First I would say what is more "proper"for violins or what would be more expected and perhaps more desired,particularly if being judged, if I'm not mistaken would be a scraped finish on the raw wood, This will make it so the "reeding" or corduroy grain pattern will be more pronunced and this underlying "cross grain dog fur medulary ray effect" while still there as it is inherent, it will not stand out or be seen nearly as much if the raw wood surface was prepared using fine grit paper, the finer the grit the more this will stand out. even though vertical grain woods by in large demonstrate a "vertical grain" look within the entity of the cut, the cross grain flinches that exist in the cut related to its thickness, reside in wood as if in layers of flitches, like layers of plywood may be a good way to visualize it... So as the arch falls from the top to the edge , if the spruce were in fact ply wood we would see the different layers exposed as we get deeper and deeper into the wood., this can be seen in certain knife handles that use laminated colored ply layers. So what you are seeing a similar effect that is not showing as layers of plywoodfalling away form the top peak of the arch, but because it is solid wood, we see the flitches jump out when polished,making them shine, or stand out when varnish hits them, and then as these are telegraphed through the varnish falling away from the top peak of the arch to the edge,this pattern is left behind, jumping out in certain light and disappearing in others, like "mini chatanoyance"... As this visual artifact pretty much only presents itself when fine sandpaper is used, it is a "tell' as pointed out by Bruce of how the instrument was created. In guitars, as it is "ok" and common to sand for final surface prep, this visual artifact is somewhat desired and or expected. owever because most guitars are not arched, the effect does not show so much as it would if it is an arched top, the "falling away" layers thing does not show as dramatically as see in these pics, but the flitch effect will be seen
  14. Violin geometry references

    nope, never have never will...the only thing that dictates anything is the mold itself, which is drawn freehand....the only devices used for measure are a compass, straight edge, scribe ....after that everything is done by eye or feel.