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Making a Truly Flat Sanding Bar

Making a Truly Flat Sanding Bar

by Mark French

Originally published in American Lutherie #113, 2013



As any luthier knows, a flat sanding bar is an indispensable tool. Buying one can be expensive, but making one isn’t as hard as you might think. It is not difficult to use strips of sandpaper to sand rectangular aluminum tube or bar stock to an extremely flat condition.

To start, I should be clear that I like using 3˝ sanding bars, which are wider than many of those commercially available. They are handy for a number of tasks, especially ensuring that necks and fretboards are flat before gluing them together. They are a nice alternative to a heavy granite surface plate and are much easier to tuck away when not needed. Certainly, narrower ones can be more useful for leveling frets, and they can also be made using the process described here.

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Restoring Tárrega’s 1888 Torres

Restoring Tárrega’s 1888 Torres

by Jeffrey R. Elliott

from his 2004 GAL Convention lecture

Originally published in American Lutherie #83, 2005 and Big Red Book of American Lutherie Volume Seven, 2015



It was a privilege and an honor to restore this 1888 Antonio de Torres classical guitar, which is the centerpiece of a wonderful collection owned by Sheldon Urlik of Los Angeles, California. Identified as SE 114 in Antonio de Torres Guitar Maker — His Life and Work by José Romanillos, this guitar has great historical significance, not only because it was made by Antonio de Torres, but because it was owned by the great guitarist, composer, and pedagogue Francisco Tárrega.

Before I began any work, I consulted with luthier and historian José L. Romanillos of Guijosa, Spain, for his expertise on Torres guitars and also reread his comprehensive book, which is the primary source of the historical information that follows. In addition, I consulted with luthier John F. Mello of Berkeley, California, for his restoration experience on Torres guitars and both previous owner Elias Barreiro of New Orleans, Louisiana, and the present owner Sheldon Urlik for their knowledge of the history of this guitar.

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Length of Newt’s Tail by Width of Dragon’s Hair

Length of Newt’s Tail by Width of Dragon’s Hair

by Ken Sribnick

Originally published in American Lutherie #55, 1998



Don’t hurt me. I’m going to tell you an old joke. How many luthiers does it take to split a dragon’s hair? One to split the hair, and the rest to say, “Oh, that’s how you do it.” At our 1995 convention, I heard a number of luthiers ask about measurement and precision: How do you check this? When is that flat enough? In the spirit of the little joke, I thought it might be interesting to tell you my approach. These surely aren’t the only, or necessarily the best, methods — only how one man splits dragon hair and newt’s tail in our little shop.

My early lutherie and repair went slowly until an experienced luthier, a repairman in New York’s music district, helped me along. His “luthier’s gold” included explaining which measuring tools to have, and how to use them. Consistency is essential. You must strive to reduce error and deviation. To this end I have “master” reference tools in the shop: one ruler, one caliper, one flat surface, and my drawings. It doesn't matter if you use metric measurements or inches. Just pick the system you’re comfortable with, have good master references, and, stick with them. You’ll be successful. I’m metric because I tune Toyotas as well as 12-strings.

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Measuring Archtop Musical Instruments

Measuring Archtop Musical Instruments

by Chris Burt

Originally published in American Lutherie #83, 2005

See also,
Arched Plate Carving, Part One by Chris Burt
Arched Plate Carving, Part Two by Chris Burt
Arched Plate Carving, Part Three by Chris Burt


This is the first of three articles that take you from the basics of creating your own database of musical instrument measurements to applying what you have learned from those measured instruments while you carve top and back plates. In this article, you will learn to safely measure fine instruments. Article Two will describe plate carving, and article Three will describe plate graduating.

This article is dedicated to Bob Lundberg, from whom I first learned the basics of measuring instruments. He showed us how to set the bar high. — Chris Burt

Before you can build an archtop instrument based on an existing model, you need templates — at a minimum: a body-shape template, neck cross-section templates, and plate arching templates. You can’t carve something if you don’t understand it. If you are going to spend the considerable time that’s required to understand an instrument model, seek out the best. Measure several and keep detailed notes. If you take the time to compile a set of measuring tools and learn to use them respectfully and gently, you’ll be surprised to find how many people will allow you access to their fine instruments.

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It Worked for Me: Radiused Dishes

It Worked for Me: Radiused Dishes

by John Calkin

Originally published in American Lutherie #113, 2013

 

Sometimes the simplest changes in the shop make a big difference in the pleasure of working. For the moment, I’ve switched to instruments somewhat smaller than guitars. The first step was to cut down my radiused dishes from 24˝ diameter to 14˝. This was done in order to reach the interior of the dishes, which I use as workboards, with cam clamps. This requires raising the dish enough to get the clamps under it, and for this I used to grab whatever wooden blocks were lying around. Said blocks always got in the way of the clamps. Most luthiers never go through this because they use a go-bar deck. I’ve built three different go-bar decks and quickly tore them down — I just don’t enjoy using them.

At this point readers are probably thinking, “Why not put little legs under the dish?” D’oh! It took me years to come up with that thought. T-nuts were sunk into the bottom of the dish, legs were cut from a hefty dowel, and all-thread rod was cut into short lengths and glued into holes drilled in the ends of the dowels. The legs provide enough room for the clamp jaws, plus a skosh.

Photo by John Calkin.

Life is better now. The legs can still get in the way of the clamps, but life was never meant to be perfect, and it may be some time before I learn how to levitate work off my bench. It only takes seconds to remove the legs when I want to spin the dish as a sanding board. ◆