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    Re: Better machines give better sustain?

    You left out this part of the quote:



    If I'm not mistaken, that means it doesn't matter how hard you pluck the string.
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    Re: Intonation Mystery

    When done correctly it works fine (until it wears down), especially with a small amount of relief in the fingerboard. It is essentially the same as using a capo.
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    Re: Intonation Mystery

    I don't really know, I normally don't work with 0-fret instruments. There's not much to be done to adjust zero fret, but I suppose crowning it off-center is a possibility if it starts out big enough.
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    Re: Intonation Mystery

    The cause is string stiffness. When deflected from straight, the stiffer the string the more is stretches and thus pulls sharp. That is why heavier gauge strings need more "compensation" to play in...
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    Re: Better machines give better sustain?

    If they do they probably don't publicize it much. Unlike Stradivari and other "old Italians", Gibson has trade marks, patents and a fleet of corporate lawyers. I don't think things are as bad as they...
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    Re: Better machines give better sustain?

    ...and for good measure, there's this one...
    https://newt.phys.unsw.edu.au/jw/powerhousetwins.html
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    Re: Better machines give better sustain?

    https://www.pnas.org/content/114/21/5395
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    Re: semi hemispherical fretting

    That's how I ended up with frets that didn't match in height. When you use those leftovers be sure they match your new wire (if it's not the same batch).
    Also, I usually cut off a length of fret...
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    Re: semi hemispherical fretting

    That's why I always start at the wide end of the fingerboard. Cut a fret too short? No problem, it's still long enough for one of the next slots.

    That is, BTW one of the reasons I don't finish...
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    Re: Better machines give better sustain?

    I used to read those types of articles back in the day and assume they must be correct. As I've grown in lutherie I look back on them and see what poor science many of them were, how poorly...
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    Re: semi hemispherical fretting

    About .005" height difference.
    I ordered by the pound and, as always, kept any left over ends long enough to use. Ran out, ordered another pound and found out the hard way that there was a...
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    Re: semi hemispherical fretting

    Strange as it may seem for something that is seen on mostly high end hand made instruments, pre-shaped 'semi hemispherical' fret ends would be relatively well suited to CNC or other digital (or even...
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    Re: Better machines give better sustain?

    There's not much to that. Added mass mostly affects the main "bar bending mode" of an instrument by lowering it's frequency. The frequency of the bar bending mode in mandolins is already lower than...
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    Re: Better machines give better sustain?

    There is no reason for different tuning machines to make any difference in sustain.
    When folks take things apart and put things back together to swap out a part, then set the mandolin back up with...
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    Re: semi hemispherical fretting

    Don't count on it. If it's the same batch they're pretty close. make the mistake that I did of using frets from two different batches and be ready to spend a couple of hours leveling and crowning, or...
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    Re: Fret sprout question

    I still have (and use) an erasing shield as well as many of the other tools mentioned here, but none are needed for filing the fret ends level with the edge of the fingerboard. Perhaps the erasing...
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    Re: Intonation Mystery

    Many people don't play those notes regularly, and I have suggested to them to place the bridge for better intonation on the frets where they do play regularly.

    BTW, I shorten the distance from the...
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    Re: Intonation Mystery

    If it's other frets also, I'd check the string height at the nut first.
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    Re: Intonation Mystery

    Only 5 and 7 are sharp? If it is two frets only, and all strings are sharp at those frets, that is inaccurate frets. If other frets are also sharp, it could be the string nut; either string notches...
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    Re: Fret sprout question

    When frets are extending at the edges of the 'board, I file them down. If there's no binding and the tangs are also extending I file them down. yes, the finish gets some damage but it can normally be...
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    Re: Is this damage serious or cosmetic?

    Not enough info.
    I can't tell from the picture where the damage is, what kind of construction is involved, how big the damaged area is etc., so I can't tell if it is serious or strictly cosmetic.
  22. Thread: Bench Heights

    by sunburst
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    Re: Bench Heights

    I mix it up. Too much standing is hard on feet and legs, too much sitting is hard on other things. I like at least one stool of a height that makes me about the same height sitting or standing.
  23. Thread: Bench Heights

    by sunburst
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    Re: Bench Heights

    I'm a little over 6' tall and I like my benches a little higher than average. 39" to 40" works for most things.
    When I worked at a cabinet shop a couple hundred years ago we had some low benches for...
  24. Re: Luthier special: Sheraton brown Gibson A2 in need of help

    If the top were realigned and re-glued expertly it would most likely sound very much like it did before the damage. As rcc56 said, we don't know what it sounded like before so we don't know what it...
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    Re: Is my truss rod broken?

    Unless the neck is made from seriously curly maple string tension should pull some relief into the neck eventually with minimal tension on the rod. You should be able to play it with the straight...
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