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Heat Pressing

Heat Pressing

by Leo Bidne

Originally published as Guild of American Luthiers Data Sheet #43, 1977



Heat pressing is the art of forming wood to a new and permanent shape with heat and pressure. With practice, it is an effective method of action adjustment when extreme measures are necessary; when time or poor construction methods develop a problem, has a fair idea of what a “good” action is, and is familiar with such terms as “action”, “buzzing”, “truss rod”, and the numbering system of frets, etc. The term “buzzing” assumes that the string is plucked moderately hard. Applied to guitars, the art of heat pressing is to create the optimum neck shape for a fretted, plucked string. This means a buzz-free, even action over the entire length of the fretboard. Part One explains what that neck shape is, clears up some of the fallacies and old wives’ tales on the subject, and points out some common neck problems.


The Bow

Basically, a plucked string travels in a bow, like this:

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Meet the Maker: Michael Darnton

Meet the Maker: Michael Darnton

by Jonathon Peterson

Originally published in American Lutherie #27, 1991 and Big Red Book of American Lutherie Volume Three, 2004



How did your lutherie career get started?

I started playing cello when I was in 6th grade and immediately got more interested in the instrument than I was in the playing. When I was about twelve years old I got some money for Christmas from my grandmother. The very next day I ran out and bought Heron-Allen’s Violin Making, As It Was and Is, which I had spotted at a local bookstore. I talked to my mother a couple of weeks ago and she told me that she took one look at the book and thought, “This is a waste of money! He’s never going to do anything with it. It’s much too complex.” But she was wrong. I really surprised her.

It took awhile to get around to it, though. Five or six years later I bought a piece of wood and some tools. I started a violin, but I didn’t get very far. I just put the whole thing aside.

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Meet the Maker: Chuck Lee

Meet the Maker: Chuck Lee

by Steve Kinnaird

Originally published in American Lutherie #95, 2008



Chuck Lee, versatile fellow that he is, has worn a number of hats over the years. For more than three decades he has been in the plumbing trade, and for the last fifteen has held a Texas Master Plumber’s license. (And he has the dust collection system in his shop to prove his prowess with the pipes.) For seven years he worked with Wycliffe International, an organization engaged in translating the Bible into tribal languages. Currently he’s at the helm of Chuck Lee Banjo Company. Located just south of Dallas, this small firm turns out over eighty open-back banjos a year.

Recently, Chuck took an afternoon off from his busy schedule to talk about his work. It was a pleasure to visit with my friend, and learn more of his story. Plus, his tidy shop and efficient use of space are always an inspiration. About halfway through we were joined by his wife Tammy, and the conversation really got interesting.

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Not Only Cones Make It — and Cylinders Almost Do

Not Only Cones Make It — and Cylinders Almost Do

by F.A. Jaén

Originally published in American Lutherie #101, 2010



In the years since Tim Olsen’s article “Cylinders Don’t Make It” appeared in AL#8 (Winter 1986; also BRBAL1) the main ideas presented there have been accepted, developed, and finally, simplified and distorted. Many, including myself, remembered it more like “Only Cones Make It.”

The first indication that something in my ideas was wrong was when I made a CAD model of a fretboard some time ago. I wanted it to have a constant curvature radius of 300MM (around 12"). There are many customers that still want that, in spite of offering well-designed conical-shaped fingerboards. My first thought was to draw two circles, 12" diameter, one directly above the other, at the distance from nut to end. After that, I would trace two diverging straight lines connecting both circles and defining both the edges of the fretboard and the widths at its ends. The surface could then be generated by moving one of the edge lines towards the other, using the end circles as rail curves (what is known as a “sweep” command in many CAD packages).

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Pearly Shells and Nichols

Pearly Shells and Nichols

by David Nichols

from his 1984 GAL Convention lecture

Originally published in American Lutherie #1, 1985 and Big Red Book of American Lutherie, Volume One, 2000



My shop recently did two guitars for the Martin Company which are elaborate enough that they encompass basically all the different techniques used in pearl inlay. We inlaid the tortoise shell pickguards, the rosewood headstocks, ebony fingerboards, and all edgebinding. I photographed many steps in this process, and we can look at these as examples.

Here’s a picture of where I’m going to cut the pearl and do the inlay work (Photo 1). I have taken an extra liberty with our cutting board, drilling a series of holes in the back where I can stand all the little Dremel attachments that I’m going to need. When we cut pearl, it is either filed, or ground with the Dremel to an exacting contour after we saw it. It gives you a much better looking job if you touch up the sawn edges of the pieces before you put them in.

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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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