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Violin Q & A: Violin Varnish Recipe

Violin Q & A: Violin Varnish Recipe

by George Manno

Originally published in American Lutherie #10, 1987 and Big Red Book of American Lutherie Volume One, 2000

 

I have been experimenting with varnish making for the last four years. I have read just about every book published on the subject. I have written to makers in this country, as well as to makers all over the world, asking their advice and comments on my recipe, but not one of them has replied. I am enclosing my oil varnish recipe for you to see; it’s not very complicated. The color is a rich golden brown; the only problem is that it won’t dry.

pine gum resin
gum rosin (colophony), WW grade
linseed oil
turpentine spirits

Do you see anything wrong with this formula?

Not knowing how much of what you use to make this varnish makes little difference in what I see wrong with your recipe. First, the presence of rosin or colophony in your varnish will not allow the other ingredients to become palmitic, therefore it won’t dry. Another thing, the rich golden brown color that you have now will fade once exposed to any kind of ultraviolet light. Leaving out the gum rosin will give you the beginning of a good spirit varnish. As for a colorant, there are a number of dyes that can be mixed with your now-spirit varnish to complete it. Please contact Mr. Ed Campbell of the Chimney Violin Shop, 614 Lerew Road, Boiling Springs, PA 17007. He’d be more than happy to help you with your ongoing experiments.

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Violin Q & A: Cello Bridge Change for Projection

Violin Q & A: Cello Bridge Change for Projection

by George Manno

Originally published in American Lutherie #10, 1987 and Big Red Book of American Lutherie Volume One, 2000

 

I have a good French cello that I just can’t get the sound to project from. The tone has a very fine quality, but it all seems to be locked up inside of the instrument. I have cut a new bridge and soundpost, but still it’s not anywhere near what it should be. Do you have any suggestions?

Without seeing or hearing the instrument, I’m not sure what you mean when you say that the sound is “locked-up.” I’m only guessing, but it could be the strings, or the placement of the soundpost, or even the bridge. Did you spread the feet far enough when you fit it? I will tell you this, when I’m working on a cello that has a good strong tone but doesn’t project well, I’ll use a Belgian-style bridge. The higher arching of the feet always works for me. Try this and let me know.

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Review: So You Want to Make a Double Bass; To Make a Double Bass; Double Bass Making

Review: So You Want to Make a Double Bass; To Make a Double Bass; Double Bass Making

Reviewed by David Riggs

Originally published in American Lutherie #71, 2002 and Big Red Book of American Lutherie Volume Six, 2013



So You Want to Make a Double Bass
Peter Chandler
Peter Chandler, 2001
ISBN 9780968935309

To Make a Double Bass
Harry S. Wake
Harry S. Wake, 1995 (revised edition)
ISBN 978-0960704866

Double Bass Making
Bob Hitchings
Gwyllum Press, 1999
ISBN 9780953715602

Until recently, would-be bass makers have had only one main source from which to get specific information on making the string bass. Harry Wake has now been joined by two authors who present distinct approaches to the subject. For those who may have been intimidated by the prospect of taking on such a seemingly difficult project, there is now a good deal of help available in these volumes.

While it seems unlikely that one without any lutherie experience would tackle a bass as a first project, it is conceivable that one may be primarily interested in this instrument, and it is entirely possible to make a beginning, at least, with any of these books.

For sheer detail and volume of information, I would probably pick the Hitchings book over either of the other two, but more on that later. Peter Chandler’s book is the slickest production with 93 pages and 109 figures, more than 20 of which are color photos. At $60US it is also the most expensive of the three.

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Review: Guitar Finishing Step-by-Step by Dan Erlewine and Don MacRostie

Review: Guitar Finishing Step-by-Step by Dan Erlewine and Don MacRostie

Reviewed by John Calkin

Originally published in American Lutherie #61, 2000 and Big Red Book of American Lutherie Volume Six, 2013



Guitar Finishing Step-by-Step
Dan Erlewine and Don MacRostie
Stewart-MacDonald, 1998
ISBN 978-0964475236

The death of lacquer as an available finish was pronounced at least ten years ago. Because lacquer was so environmentally hazardous, the various levels of government were supposed to restrict its use to the point that manufacturers would find no profit in producing the stuff. Well, folks, it hasn’t happened, and lacquer remains the premier finish for most string instruments. If you’ve yet to have your first heady whiff of lacquer fumes, you should study Guitar Finishing Step-By-Step before you dive in. If your plans include the re-creation of the many factory guitar finishes, you should have this book regardless of your experience level.

The book has a strange flow to it, though. There are only three stages of finish work — wood prep, finish application, and rubout. However, the plethora of tools and materials available today leave too naïve an approach open to confusion and failure. To avoid this, Erlewine and MacRostie rely on detailed description, technical information, and a degree of repetition to cover all the bases thoroughly. For instance, a description of power sanders is followed twenty pages later by a description of power sanding. Both sections include important and overlapping information. Readers who skip about in order to get on with their finish work will find themselves handicapped.

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Review: Sunburst Finishing by Dan Erlewine and Don MacRostie

Review: Sunburst Finishing by Dan Erlewine and Don MacRostie

Reviewed by John Calkin

Originally published in American Lutherie #63, 2000 and Big Red Book of American Lutherie Volume Six, 2013



Video: Sunburst Finishing
Dan Erlewine and Don MacRostie
Stewart-MacDonald, 1999

Sunburst Finishing is sort of a strange video in that it’s intended to replace Stew-Mac’s out-of-date Color Finishing, yet it doesn’t cover nearly as much territory as the older film. So be it. It only costs half as much as the old tape, and the information included may be as much as you need.

The only guitar involved is an archtop Guild with a maple face. Some repair work has been done to the top before the tape begins, and the finish has also been removed. The job at hand is to match the sunburst on the top to that of the rest of the guitar. A yellow toner has to be mixed for the maple, then a brown candy is blended to match the color of the burst. The techniques of precision blending are the heart of the video, an operation at which MacRostie is a master. Chip sheets and blending boards are made which can be stashed away for future reference. The work is also referenced to the recipes in MacRostie and Erlewine’s new book, Guitar Finishing Step-By-Step (p. 530), which is a useful touch. There is no wood prep involved in the job (as far as the camera is concerned), as this video is intended to work in concert with Spray Finishing Basics, another video by the same dynamic duo. Touchups are necessary when the binding is scraped after the color coats, and the airbrush work is caught on tape. A close look at MacRostie’s scraping tools is a helpful segment.

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This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page.

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