Posted on June 6, 2024May 23, 2025 by Dale Phillips Questions: Ossification of Guitar Soundboards Questions: Ossification of Guitar Soundboards by Benz Tschannen Originally published in American Lutherie #93, 2008 see also, Questions: Ossifying Wood by Rick Rubin Benz Tschannen from the Internet asks: Reading the “Secrets of Stradivari” by Sacconi, I wonder if anyone has experimented with using the “ossification” process described in the varnish chapter on a guitar top and with what results. Benz Tschannen from Fallon, NV provides an update to a question he asked in AL#89 about “ossification” of guitar soundboards: I did some experimenting: Two pieces of spruce and two pieces of cedar, ≈2"×4"×.10", washed one each with a solution of sodium silicate, the other with water. Let dry, then coated with two coats of shellac each. After a year the result is inconclusive. Sometimes the silicate pieces seem higher pitched, sometimes the water washed ones do. The big change is in color: the silicate turns the spruce yellow and the cedar a darker brown. I don’t want to find out what it does to the colors of the rosette, so I am abandoning this quest for now. ◆
Posted on June 6, 2024May 23, 2025 by Dale Phillips Questions: Kauri Wood Questions: Kauri Wood by Laurie Williams Originally published in American Lutherie #95, 2008 Chris Powck asks: Where can I purchase planks or billets of kauri wood? I want to use this wood for instruments other than flattop guitars. Laurie Williams from New Zealand responds: Kauri is the local name of Agathis australis which is endemic to New Zealand. Similar species throughout Australia, the Pacific islands, and Indonesia are sold as Queensland kauri, Island kauri, or Fijian kauri. I will restrict my comments to New Zealand kauri, which is the one you would have heard of in musical instrument circles in the last decade. Aside from the trees growing today, there are also ancient kauri logs that have been preserved in peat swamps in the north of New Zealand. These logs are from 3,000 to 45,000 years old. Become A Member to Continue Reading This Article 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. If you are already a member, login for access or contact us to setup your account.
Posted on June 6, 2024May 23, 2025 by Dale Phillips Questions: Ossifying Wood Questions: Ossifying Wood by Rick Rubin Originally published in American Lutherie #95, 2008 see also, Questions: Ossification of Guitar Soundboards by Benz Tschannen Rick Rubin from Spokane, Washington responds to Benz Tschannen’s question in AL #89 and AL #93 on the use of sodium silicate, aka water glass, for ossifying wood: I’d refer you to the article I wrote in 1990 (Big Red Book of American Lutherie Volume Two, p. 362). Save yourself the grief: sodium silicate is very destructive to your tops. I was glad to hear that you’d just been experimenting on samples and not on an instrument yet.
Posted on May 1, 2023March 23, 2026 by Dale Phillips Fall Collection 2024 Articles Online Fall Collection 2024 GAL Members – Login first before clicking on article titles to read the full articles. Not a member? You can join or renew here. Radiation from Lower Guitar Modes by Graham Caldersmith (1985) Caldersmith discusses the efficiency and pattern of sound radiation in the classic guitar produced by the four lower resonance modes, which he calls monopole, cross dipole, long dipole, and tripole. Inside Pacific Rim Tonewoods by Steve McMinn (1993) McMinn’s lutherie wood business has turned out to be a pretty big deal. Here we gain perspective by seeing it at the very beginning. The Great White Sitka by Jeffrey R. Elliott (1993) Holy Moby Spruce! How does one hack a log that’s eleven feet wide into 4000 guitar tops? Very carefully! By the way, this is a log that Steve McMinn rescued from the pulp mill. Meet the Maker: Bernard Millant by Jonathon Peterson (2006) Millant is a violin maker, a bow maker, an appraiser, an author, and a man of high repute within the violin world. The depth of training behind many old-school fiddle people will astonish most guitar makers, and it makes for entrancing reading. Meet the Maker: Dmitry Zhevlakov by Federico Sheppard (2007) This is not only the story of a Russian luthier who also makes beautiful rosettes for other builders, but is another example of how the Internet has changed the world — in this case for better. Aluminum Sonatas: A Brief History of Aluminum Stringed Instruments in the Last 120 Years by James Condino (2007) Every luthier knows how fickle and finicky the market is, so it’s no wonder that musical instruments made of aluminum didn’t catch on. Examined here are a violin, a mandolin, and a pair of bass viols. Fun stuff! Mechanical Compliance for Soundboard Optimization by David Hurd (2007) Hurd believes that the fastest way to great instruments is science, and it’s hard to argue with such a rational man. His jigs measure the deflection of top plates while under tension, and once he carves the top and braces to the numbers he wants, he’s done. This could be math heavy, but he offers an Internet spread sheet to ease the pain. Construction of the Colombian Tiple by Anamaria Paredes Garcia and R.M. Mottola (2007) Cross a 12-string flattop with a classical guitar and you get the Colombian tiple. The tiple has four courses of three steel strings, but on the inside, it’s a classical. Follow Alberto Paredes as he builds the instrument in this photo tour. See GAL Plan #51. Meet the Maker: Mervyn Davis by Rodney Stedall (2007) Davis’ South African upbringing inspires a wonderful decorative sense in his instruments. He’s built a ton of different stuff but may end up best known for his wildly unique modular guitars called Smooth Talkers. Cricket: A Reclaimed Salvage Recovery by James Condino (2007) Condino’s mandolin is made from recycled materials, mostly Douglas fir and katalox. It is unique and beautiful, and the story behind it is pretty cool, too. Grading on the Curves: Fitting Bars and Bridges on Archtop Guitars by Steve Andersen (2007) This is a very detailed look at how a notable builder of archtop guitars fits tone bars and bridges to his instruments. The Venezuelan Cuatro by Aquiles Torres (2008) Traditionally, this instrument is a small 4-string guitar with 14 frets clear, no frets over the body, a flush fretboard, and a large veneer tap plate. Note that the cuatro built for the article has 17 frets clear of the body. See GAL Plan #58. The MacRostie Mandolin Deflection Jig by Don MacRostie (2008) MacRostie’s clever jig measures the top deflection of a carved mandolin under string load at any stage of its construction. It is a valuable tool within the reach of any luthier. The “Corker” Guitar: A Sideport Experiment by Alan Carruth (2008) Carruth built a classical guitar with many small ports drilled in the side. By plugging the ports in various combinations he investigated the usefulness and physics behind them. Though this guitar did not make a believer out of him, he admits that his results are somewhat inconclusive. Electric Guitar Setup by Erick Coleman and Elliot John-Conry (2009) Two disciples of Dan Erlewine explain the latest techniques of setting up the electric guitar. All the details and specs are there, as well as a bit of philosophy. Dulcimer 101 by John Calkin (2009) Dulcimers are needlessly maligned and in need of advocates, and the author is a strong one. Tools and jiggery are kept to a minimum to make construction of this entry level instrument as accessible as possible. The Guitar as a Structure and Some Practical Information on Bracing by James Blilie (2009) A structural engineer and guitar builder sees the guitar as a thing buffeted by forces and stresses. Total Flame Out: Retopping a Harp Guitar by Harry Fleishman (2009) Harry replaces the failed soundboard on a complicated instrument with as little refinishing and other stress as possible. Strings: The (Often) Forgotten Accessory by Fan Tao (2010) D’Addario's resident scientist Fan Tao helps us understand string issues in relation to custom instruments and customized tuning. Practical Acoustics by Michael Cone (2010) Cone describes his advanced apparatus and method for acoustically testing classical guitars. Meet the Maker: James Ham by Roger Alan Skipper (2010) Ham operates from a shop in Victoria, B.C. where he repairs and restores violin family instruments and constructs world class double basses. It’s All About the Core or How to Estimate Compensation by Sjaak Elmendorp (2010) Mathematics and parameters used to address the problem of string compensation estimation. Articles Online Fall Collection 2024 Radiation from Lower Guitar Modes by Graham Caldersmith (1985) Caldersmith discusses the efficiency and pattern of sound radiation in the classic guitar produced by the four lower resonance modes, which he calls monopole, cross dipole, long dipole, and tripole. Inside Pacific Rim Tonewoods by Steve McMinn (1993) McMinn's lutherie wood business has turned out to be a pretty big deal. Here we gain perspective by seeing it at the very beginning. The Great White Sitka by Jeffrey R. Elliott (1993) Holy Moby Spruce! How does one hack a log that’s eleven feet wide into 4000 guitar tops? Very carefully! By the way, this is a log that Steve McMinn rescued from the pulp mill. Meet the Maker: Bernard Millant by Jonathon Peterson (2006) Millant is a violin maker, a bow maker, an appraiser, an author, and a man of high repute within the violin world. The depth of training behind many old-school fiddle people will astonish most guitar makers, and it makes for entrancing reading. Meet the Maker: Dmitry Zhevlakov by Federico Sheppard (2007) This is not only the story of a Russian luthier who also makes beautiful rosettes for other builders, but is another example of how the Internet has changed the world — in this case for better. Aluminum Sonatas: A Brief History of Aluminum Stringed Instruments in the Last 120 Years by James Condino (2007) Every luthier knows how fickle and finicky the market is, so it’s no wonder that musical instruments made of aluminum didn’t catch on. Examined here are a violin, a mandolin, and a pair of bass viols. Fun stuff! Mechanical Compliance for Soundboard Optimization by David Hurd (2007) Hurd believes that the fastest way to great instruments is science, and it’s hard to argue with such a rational man. His jigs measure the deflection of top plates while under tension, and once he carves the top and braces to the numbers he wants, he’s done. This could be math heavy, but he offers an Internet spread sheet to ease the pain. Construction of the Colombian Tiple by Anamaria Paredes Garcia and R.M. Mottola (2007) Cross a 12-string flattop with a classical guitar and you get the Colombian tiple. The tiple has four courses of three steel strings, but on the inside, it’s a classical. Follow Alberto Paredes as he builds the instrument in this photo tour. See GAL Plan #51. Meet the Maker: Mervyn Davis by Rodney Stedall (2007) Davis’ South African upbringing inspires a wonderful decorative sense in his instruments. He’s built a ton of different stuff but may end up best known for his wildly unique modular guitars called Smooth Talkers. Cricket: A Reclaimed Salvage Recovery by James Condino (2007) Condino’s mandolin is made from recycled materials, mostly Douglas fir and katalox. It is unique and beautiful, and the story behind it is pretty cool, too. Grading on the Curves: Fitting Bars and Bridges on Archtop Guitars by Steve Andersen (2007) This is a very detailed look at how a notable builder of archtop guitars fits tone bars and bridges to his instruments. The Venezuelan Cuatro by Aquiles Torres (2008) Traditionally, this instrument is a small 4-string guitar with 14 frets clear, no frets over the body, a flush fretboard, and a large veneer tap plate. Note that the cuatro built for the article has 17 frets clear of the body. See GAL Plan #58. The MacRostie Mandolin Deflection Jig by Don MacRostie (2008) MacRostie’s clever jig measures the top deflection of a carved mandolin under string load at any stage of its construction. It is a valuable tool within the reach of any luthier. The “Corker” Guitar: A Sideport Experiment by Alan Carruth (2008) Carruth built a classical guitar with many small ports drilled in the side. By plugging the ports in various combinations he investigated the usefulness and physics behind them. Though this guitar did not make a believer out of him, he admits that his results are somewhat inconclusive. Electric Guitar Setup by Erick Coleman and Elliot John-Conry (2009) Two disciples of Dan Erlewine explain the latest techniques of setting up the electric guitar. All the details and specs are there, as well as a bit of philosophy. Dulcimer 101 by John Calkin (2009) Dulcimers are needlessly maligned and in need of advocates, and the author is a strong one. Tools and jiggery are kept to a minimum to make construction of this entry level instrument as accessible as possible. The Guitar as a Structure and Some Practical Information on Bracing by James Blilie (2009) A structural engineer and guitar builder sees the guitar as a thing buffeted by forces and stresses. Total Flame Out: Retopping a Harp Guitar by Harry Fleishman (2009) Harry replaces the failed soundboard on a complicated instrument with as little refinishing and other stress as possible. Strings: The (Often) Forgotten Accessory by Fan Tao (2010) D'Addario's resident scientist Fan Tao helps us understand string issues in relation to custom instruments and customized tuning. Practical Acoustics by Michael Cone (2010) Cone describes his advanced apparatus and method for acoustically testing classical guitars. Meet the Maker: James Ham by Roger Alan Skipper (2010) Ham operates from a shop in Victoria, B.C. where he repairs and restores violin family instruments and constructs world class double basses. It’s All About the Core or How to Estimate Compensation by Sjaak Elmendorp (2010) Mathematics and parameters used to address the problem of string compensation estimation.
Posted on August 1, 2022May 20, 2025 by Dale Phillips Wood Salvaging Down Under Wood Salvaging Down Under by Des Anthony Originally published in Guild of American Luthiers Quarterly, Volume 6 #2, 1978 and Lutherie Woods and Steel String Guitars, 1998 Woodstock. No, not that Woodstock, but a one-shop, no-houses Woodstock in North Queensland, Australia. At last the moment had arrived. It was a typical hot summer’s day and I was armed with the necessary tools. There was still that feeling of uncertainty in my mind that what I was to do was totally criminal. Sharing the shed with the ’dozers and tractors was an old upright Victor piano. Nobody wanted it anymore so I was able to carry out my plan. At home, our towns usually have a festival each year, and in that festival procession there is always an old car whereupon, for a fee, you may smash with a sledge hammer. Well, I wasn’t in that kind of mood, but I was still going to reduce this piano to an unrecognizable mess, but, I hope with a more dignified ending. Become A Member to Continue Reading This Article 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. If you are already a member, login for access or contact us to setup your account.
