Search found 1604 matches
- Wed Feb 01, 2012 7:53 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Equation 4.5-7
- Replies: 55
- Views: 60981
Re: Equation 4.5-7
Hi Scott, There's no doubt that Eqn. 4.5-7 is correct, so that only really leaves how you "read" the equation if you are getting consistently wrong results. If it were "fingering" problems, your results would be somewhat more random. The most frequent source of errors is getting the zero count wrong...
- Sun Jan 29, 2012 11:11 am
- Forum: Instrument Builders Forum
- Topic: Acoustic guitar pickups
- Replies: 34
- Views: 23497
Re: Acoustic guitar pickups
The conventional answer is two different instruments. Building electro-acoustics then leaving the electrics out and calling them acoustics is where most of the factory makers have gone wrong (well, one place they've gone wrong...). Another way of killing some feedback is to use in-ear monitoring rat...
- Sun Jan 08, 2012 11:09 am
- Forum: Instrument Builders Forum
- Topic: Another Odd Question
- Replies: 16
- Views: 11793
Re: Another Odd Question
I saw a "harlequin" classical guitar in a Sydney (Chatswood) store not long ago. I think it was rosewood/cypress alternate on the back and sides. Can't remember the brand.
- Fri Jan 06, 2012 9:28 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Nut and Saddle compensation
- Replies: 8
- Views: 11303
Re: Nut and Saddle compensation
Yes. I set it up with 12s, which is big for a twelve string, and tuned it to concert. Huge!
You need a good set-up, though, to do that and most people would prefer lighter strings. The one on the website had a double truss rod arrangement, too.
You need a good set-up, though, to do that and most people would prefer lighter strings. The one on the website had a double truss rod arrangement, too.
- Thu Jan 05, 2012 3:02 pm
- Forum: Instrument Builders Forum
- Topic: New Luthier Tips du Jour video - Tonewood
- Replies: 19
- Views: 16620
Re: New Luthier Tips du Jour video - Tonewood
For another perspective, try this:
http://scitation.aip.org/getpdf/servlet ... rog=normal
I'll defy anyone to accurately grade tonewoods by stiffness/density (E/ρ) by examining rough sawn lumber!
http://scitation.aip.org/getpdf/servlet ... rog=normal
I'll defy anyone to accurately grade tonewoods by stiffness/density (E/ρ) by examining rough sawn lumber!
- Thu Jan 05, 2012 9:59 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Nut and Saddle compensation
- Replies: 8
- Views: 11303
Re: Nut and Saddle compensation
Yes. Works great!
http://www.goreguitars.com.au/main/page ... jects.html
(Scroll to the bottom of the page)
http://www.goreguitars.com.au/main/page ... jects.html
(Scroll to the bottom of the page)
- Wed Jan 04, 2012 8:28 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Nut and Saddle compensation
- Replies: 8
- Views: 11303
Re: Nut and Saddle compensation
Hi Wes, One of the problems in writing large books is that occasionally the continuity isn't perfect! Ideally, Tables 4.7-3 and 21-2 should have been the same. As it happens, the guitar set-ups for the two tables were slightly different, with the example in Table 4.7-3 having slightly more neck reli...
- Tue Jan 03, 2012 10:52 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Falcate Lite
- Replies: 7
- Views: 8909
Re: Falcate Lite
A number of people have posed this question. The point about the CF is that it reduces cold creep. My thinking is that you would have to put a lot more wood in to get that benefit. Just compare the size of falcate braces to X braces, for example. Using the CF is not that hard. As you already have a ...
- Sat Dec 31, 2011 6:08 pm
- Forum: Instrument Builders Forum
- Topic: Curved frets
- Replies: 20
- Views: 15105
Re: Curved frets
The difference between long and short strings on a conventional guitar with straight frets is a maximum of ~0.15mm with an associated interval error of ~0.4 cents. You may just be able to see the curve in the frets (provided you don't have any spherical aberrations in your vision), but I doubt you'l...
- Tue Dec 20, 2011 12:29 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Soundports and tuning
- Replies: 21
- Views: 24548
Re: Soundports and tuning
Depending on how you braced the back, it is often possible to do it in situ. You can either cap the top of the existing brace or just put another one in just behind the first one. Usually the place that needs the extra stiffness is only the middle of the span. I'd be interested to hear your reaction...
- Fri Dec 16, 2011 12:36 pm
- Forum: Instrument Builders Forum
- Topic: Got to stop asking how it happens.
- Replies: 21
- Views: 16289
- Thu Dec 15, 2011 10:38 pm
- Forum: Instrument Builders Forum
- Topic: Got to stop asking how it happens.
- Replies: 21
- Views: 16289
Re: Got to stop asking how it happens.
Steve, you'll have to keep that dog of yours under control...
- Tue Dec 13, 2011 12:05 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Soundports and tuning
- Replies: 21
- Views: 24548
Re: Soundports and tuning
Quick answer is "No". I still haven't heard a guitar that sounds better for having a sound port. The audience always seems to get a raw deal; never as much projection. But that is just me listening rather than any more objective testing. Alan Carruth did quite a bit of work. Might be on his web site...
- Mon Dec 12, 2011 7:10 pm
- Forum: The Gallery
- Topic: The Patient
- Replies: 9
- Views: 10371
- Mon Dec 12, 2011 7:02 pm
- Forum: Instrument Builders Forum
- Topic: Suitable Rock Maple alternative(?)
- Replies: 19
- Views: 19963
Re: Suitable Rock Maple alternative(?)
Sorry Dom, I can't really tell you anything more. Probably the best thing to do is to try and heat bend it. Cut a 15-20mm slice and thickness it to ~2.3mm, then try to heat bend it by hand. If you have no problem, it is the silver/linings stuff. If it's a real struggle and breaks on tight bends it's...
- Sun Dec 11, 2011 10:11 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: String spacing and neck width
- Replies: 2
- Views: 4879
Re: String spacing and neck width
Hi Dom, I typically run 46mm or 47mm at the nut for a fingerpickin' steel string guitar and 58mm string spread at the saddle. As it turns out, this also gives 58mm at fret 12 and these are my normal layout numbers. Measuring at fret 9, I get 56mm for the fretboard and 47mm string spread (centre to c...
- Sun Dec 11, 2011 3:55 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Best tuner
- Replies: 7
- Views: 10096
Re: Best tuner
I use AP tuner in that application: http://www.aptuner.com/cgi-bin/aptuner/apmain.html
If you run through the options you can see how all the harmonics rate, as well as the fundamental.
The price is good, too!
If you run through the options you can see how all the harmonics rate, as well as the fundamental.
The price is good, too!
- Sat Dec 10, 2011 5:47 pm
- Forum: Instrument Builders Forum
- Topic: Amplification
- Replies: 21
- Views: 19390
Re: Amplification
The instructions use the pin holes to position the transducers. Any thoughts how to do it with a pinless bridge? Make yourself a set of locators - each a small piece of perspex or similar with a notch filed in which is the same diameter as the transducer. Stick the locators to the underside of the ...
- Sat Dec 10, 2011 10:20 am
- Forum: The Gallery
- Topic: "The Shed" guitar
- Replies: 63
- Views: 81435
Re: "The Shed" guitar
Personally, I like very responsive guitars, because on the rare occasions I get to play I'm a "bare hands" finger picker on steel strings (but more frequently classical, these days). However, it really is horses for courses. For a steel string finger picker I get highest monopole mobility and lowest...
- Wed Dec 07, 2011 11:00 am
- Forum: The Gallery
- Topic: "The Shed" guitar
- Replies: 63
- Views: 81435
- Tue Dec 06, 2011 9:06 pm
- Forum: The Gallery
- Topic: "The Shed" guitar
- Replies: 63
- Views: 81435
Re: "The Shed" guitar
Thanks to all who participated in this – greatly appreciated. First, a few more details about the guitars: Both are falcate braced. Both have live backs The bridges are near identical; consecutive slices off the block, same mass (11.5 grams) The strings are the same; Savarez 540J (High tension, “car...
- Tue Dec 06, 2011 6:18 pm
- Forum: The Gallery
- Topic: Bunya/Blackwood OM
- Replies: 9
- Views: 9397
Re: Bunya/Blackwood OM
Amazing effort! Takes a lot of "bottle" (as we used to say in the olde country) to use a top like that. Regarding bunya's properties, Bootle gives its Young's Modulus as 13GPa, but I've never found any that stiff, more like 9-10GPa. It varies a lot in density too (not unusual), ~450kg/m^3 to ~540Kg/...
- Tue Dec 06, 2011 2:07 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Blackwood L-00 analysis
- Replies: 10
- Views: 12040
- Sun Dec 04, 2011 10:38 pm
- Forum: The Gallery
- Topic: "The Shed" guitar
- Replies: 63
- Views: 81435
Re: "The Shed" guitar
Thanks Paul. There's no wrong answers here. What you hear is what you hear! One of my early learnings was that there doesn't seem to be any such thing as "normal" hearing; another of the things that makes this game so hard (and so interesting...!)
Anyone else?
Anyone else?
- Sun Dec 04, 2011 8:18 pm
- Forum: The Gallery
- Topic: "The Shed" guitar
- Replies: 63
- Views: 81435
Re: "The Shed" guitar
Thanks to Kim for the YouTube tips and thanks everyone who's had a go answering the question... Now here's a puzzle for you: The recordings were made with more-or-less identical settings; no EQ, no reverb, nuthin'. The guitars have soundboards that are as identical as two soundboards can get, same b...