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It Worked for Me: Danco Bend-O-Matic

It Worked for Me: Danco Bend-O-Matic

by Daniel Fobert

Originally published in American Lutherie #90, 2007



Here are some pictures of my DANCO BEND-O-MATIC. I took on this project to advance my elementary machining skills and to get a laugh. My object was to be able to introduce a piece of fret wire into the BEND-O-MATIC, have a powered mechanism start automatically, bend the wire to a predetermined radius, and stop when the bend was complete — all without turning a crank.

It was a great hit at last December’s LINT meeting (Luthier’s Interactive of North Texas) — at least as much as my one-handed 9v powered cam clamp. Everyone with a camera phone was maneuvering for a picture.

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Transducers

Transducers

by Reagan Cole

Originally published as Guild of American Luthiers Data Sheet #54, 1977



The purpose of this particular article is to project one man’s opinion about the theoretical whys and wherefores of the transducer for acoustic instruments. This is not a consumer’s report analysis of commercially available products. Anyone interested in this information may consult the series which is currently running in Mugwumps Instrument Herald. A full market report and commentary has been promised. I have never had the money to run out and A-B all the stuff that crops up in the pages of Guitar Player; anyway, I have never used any of the commercial units since I build my own systems.

There seems to be several major camps regarding the amplification of acoustic instruments. These I would categorise as follows: (1) Only microphones should be used. These devices are, after all, an electrical analogue to the human ear, so if the mike is good all will be well. Absolutely nothing should be attached to an existing acoustic instrument. (2) Transducers are a necessary evil. They do allow musicians playing acoustic instruments to compete in an electric or an electronic ensemble. At any rate, if they are used they should be easily removable, leaving no trace. (3) The acoustic-electric is yet another evolutionary phase. The performance of the instrument transducer system is of paramount importance; It may be necessary to modify the instrument or even to design a new type for acoustic-electric use. I don’t believe that there are grounds for a serious feud lurking in any of these arguments; all are correct from their own frames of reference.

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Product Reviews: Knilling Perfection Planetary Pegs

Product Reviews: Knilling Perfection Planetary Pegs

Reviewed by Randy DeBey

Originally published in American Lutherie #100, 2009



By now, just about everyone who works with stringed instruments has at least heard of Pegheds or Knilling Perfection Planetary Pegs. These are geared tuning pegs that look very much like ordinary ebony friction pegs, but work more like fine tuners. They contain a set of planetary gears, which reduce the rotation by a rate of 4:1 for violin family instruments and flamenco guitars, and 16:1 for steel string guitars.

Those who haven’t yet taken the plunge and installed a set are probably waiting to have various concerns answered. I’ll try to explain how they are constructed, so you can imagine for yourself how well they might work, and also relate some of my own experience with them. I’ve installed over 100 of the pegs, mostly in violins, but also in cellos, ouds, a banjo, and a guitar.

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Lutherie Binge?

Lutherie Binge?

by Dake Traphagen

Originally published in Guild of American Luthiers Quarterly, 5, #4, 1977



Well somehow I’ve survived my first but not last, European experience, which Tim Olsen dubbed a “Lutherie Binge” in Vol. 5, No. 2. From my perspective, I think the phraseology could be better put as a Life Experience Binge. After all, let’s not limit ourselves to being only luthiers; or at least if we want to view ourselves as being luthiers, let’s expand the term to encompass all other experiences which connect ourselves to our Luthiership.

So what about my European Experience? Ten hour jet flight, what a slow method of transportation; Galliards of royalty traversing the English countryside. While resting in the dark forest; was that a Hobbit or maybe an elf?

The Mediterranean’s salty, yet beautiful swimming; but where were the troubadour guitarists of Spain: only me expectations? A lot of flamboyant people and machine guns however... Majestic, cultured, the arts of Arts of western conception, if only one wouldn’t be so coined American; such is the way Paris... Oh yes! The ferry’s cooling rushing air and rolling boat with rain, sun, spray, and lovely people enjoying; except for a few green faces, but who knows, maybe they enjoyed being green.

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Separating Glued Joints

Separating Glued Joints

by Nick Hayden

Originally published as Guild of American Luthiers Data Sheet #7, 1975

 

Here’s a good method for separating glue. I’ve taken so many tops off without breaking, it isn’t even funny.

First of all, you have to get white vinegar, then heat it up. It has to be hot.

Work it into the glue joint. Use a razor knife and a small brush. The glue will turn white and you can work it loose.

I told this to Bill Spigelsky, and he couldn’t get over it, when he tried it. ◆