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  1. Replies
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    Re: F4 Headstock veneers - ebony?

    I don't remember what year the instrument was made. I don't think I recorded the numbers.
    The veneer is approximately .020" sliced maple soaked in vinegar and steel wool. The color is through the...
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    Re: F4 Headstock veneers - ebony?

    Let's try these.
    194106194107

    The scroll had broken off and someone tried to "streamline" the shape. If you look closely at the first pic where I used the spindle sander to remove the binding and...
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    Re: F4 Headstock veneers - ebony?

    Somewhere, I have pictures of a bound F4 peghead with the single veneer overlay but I haven't found them. They did that too. If I can find the pics easily I'll post a couple (probably still on an SD...
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    Re: F4 Headstock veneers - ebony?

    The crackle pattern on surface is typical of rotary cut plywood. Sliced veneers are much less prone to such "knife checks" displaying from years of wood movement.
    Here is one example of the single...
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    Re: F4 Headstock veneers - ebony?

    Adrian, some old Gibsons have the plywood overlays painted black and some have a single veneer dyed black. The plywood ones I've worked on have been from the 30s while the single veneer ones are...
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    Re: Boomerang Banjo Mandolin

    I thought that might be the case with the name Boomerang for the instrument. It still looks a lot like an English banjo, but it could have been built anywhere (including Australia) by someone...
  7. Thread: Finish issues

    by sunburst
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    Re: Finish issues

    A couple of things I suspect:

    4 coats of lacquer in a session is a lot. Most of the lacquers that I have used recommend 2 coats in a session, but I usually cheat a little and spray 3. It is...
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    Re: Boomerang Banjo Mandolin

    It looks English, and from the spelling of your neighbor (neighbour), that may well be where it is, or at least nearby. Other than that, I can't tell you much.
    Perhaps there are ways to clean real...
  9. Thread: Finish issues

    by sunburst
    Replies
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    497

    Re: Finish issues

    Can you outline your procedure from sanding through buffing? How was the shellac applied and how soon after staining? How soon after final sanding was the dye applied? Was the color rubbed? Sprayed?...
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    Re: Chop vs ringing clarity

    All objects have modes and nodes. We are nearly all familiar with modes of vibration of strings. We can chime harmonics by touching the string at a node. Modes are portions that move while nodes are...
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    Re: F4 Headstock veneers - ebony?

    F4s on which I have done extensive peghead work had dyed-black (actually sort of greenish dark gray) mystery wood that was then painted black. I think it might vary by year with some of them not...
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    Re: Chop vs ringing clarity

    The interaction of air modes and sound hole position is involved in "chop" as well as total sound hole area. To my knowledge, no mandolin with a more-or-less traditionally placed oval/round hole can...
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    Re: Chop vs ringing clarity

    Dave Cohen's work has been most helpful for me. Conversations with Dave have probably helped even more because understanding scientific papers can be a challenge. Being able to ask questions and...
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    Re: Chop vs ringing clarity

    Study the scientific research done on guitars and mandolins. Especially more recent (last couple of decades) work done with holography. A rudimentary understanding of plate modes, air modes and...
  15. Re: how do you prevent and get rid of hand cramps

    Drink plenty of water, be sure to get enough calcium (dairy etc.) and potassium (bananas etc.).
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    Re: scraping celluloid bindings

    When I'm under time constraints I use CA for celluloid bindings instead of Duco for the simple reason of speeding things up. Otherwise, I've used Duco for over 30 years, I'm familiar with the process...
  17. Thread: Shop dust

    by sunburst
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    2,110

    Re: Shop dust

    I almost never use hand held power sanders.
    When I worked "at the factory" I seldom sanded by hand, except finishes, and even then I sanded first with an orbital sander. When I moved to my own shop...
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    Re: scraping celluloid bindings

    At least a week, prefer two weeks or more.
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    Just some wood

    Nothing really exciting, but a pleasant little surprise.
    The new dishwasher was packed in a box with a light duty crate made from two formed Styrofoam pieces connected by 4 wooden slats. ...
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    Re: Curly maple wow

    Far be it from me to dissuade you from this noble pursuit, but at some point we just need to remove wood without damaging the surface, and making the excess into dust can be the quickest, most...
  21. Thread: Shop dust

    by sunburst
    Replies
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    2,110

    Re: Shop dust

    I made one that works. It is simply a shallow plywood box with large dowels (broom handles) attached to and spanning across the top, spaced so that foam pipe insulation placed on the dowels leaves...
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    Re: Curly maple wow

    Some pieces of CM carve much more easily than others. Sometimes the curl is but a minor annoyance that makes us pay attention to direction of cut. Other times it makes us consider leaving our edge...
  23. Thread: Shop dust

    by sunburst
    Replies
    34
    Views
    2,110

    Re: Shop dust

    Having learned how, I actually find it rather easy to flatten and square lumber using hand tools. Not fast, but not difficult. Usually the difficulty beginners encounter is not the work of planing,...
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    Re: Flame maple board

    Yes



    Not usually that I know of, but sometimes the heartwood of eastern maples can be problematic in terms of strength, stability and overall soundness. Other times it is good wood.
  25. Re: Cleaning gunk off a nitrocellulose lacquer finish

    I've never experienced nor heard of naphtha damaging nitro finishes. I don't know what the builder's application technique was or if he did something different to the surface, so he might have a...
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