Search found 77 matches

by dshaker
Thu Jul 17, 2014 3:29 am
Forum: Instrument Builders Forum
Topic: Little Shocker
Replies: 18
Views: 16929

Re: Little Shocker

I'm not an electrician by any means, but I am remodeling my house and I just read a book on wiring. My amateur opinion is that you have two problems. 1) There is something wrong with the wiring in your amp. One of the wires somewhere in there has electrical contact with the chassis and that needs to...
by dshaker
Mon Jul 14, 2014 1:31 am
Forum: Instrument Builders Forum
Topic: Alternatives to nitro lacquer
Replies: 20
Views: 21380

Re: Alternatives to nitro lacquer

On further investigation, I find there are even companies making UV-emitting LEDs specifically for UV finish curing.
by dshaker
Mon Jul 14, 2014 1:09 am
Forum: Instrument Builders Forum
Topic: Alternatives to nitro lacquer
Replies: 20
Views: 21380

Re: Alternatives to nitro lacquer

There are UV fluorescent bulbs that are sold for the purposes of sterilization and for hardening of fingernail polish and cost US$10-60. I don't know if they produce the right wavelengths for the guitar lacquer, but if a cabinet from the lacquer supplier is $10,000 to $100,000, I think I would inves...
by dshaker
Fri Jul 11, 2014 4:23 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Tone complexity, "sweetness", vocabulary
Replies: 4
Views: 6717

Tone complexity, "sweetness", vocabulary

I have finished my Gore-Gillet falcate-braced steel string. I'm not much of a player, but as I have carted it around to folks looking for feedback, the responses have been VERY encouraging. The issues have been: - Fit and finish: I have not yet perfected my woodworking skills to the point needed for...
by dshaker
Wed Jul 02, 2014 5:40 am
Forum: Instrument Builders Forum
Topic: my first 10strings classical
Replies: 21
Views: 20278

Re: my first 10strings classical

Very nice work. One of your headstock inlays is similar to one I recently did, though I have to say yours is more neatly done than mine. I have yet to master neatly and accurately excavating the inlay cavity.
by dshaker
Tue Jul 01, 2014 11:10 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Sitar-like open note?
Replies: 7
Views: 8945

Re: Sitar-like open note?

Thanks, guys. I spent five minutes last night reconfiguring the nut slot and the string started sounding normal. One more fret buzz to nail and I'll be done.

Thanks for your help and advice.
by dshaker
Mon Jun 30, 2014 5:20 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Sitar-like open note?
Replies: 7
Views: 8945

Sitar-like open note?

First guitar made using The Book:

If I play the open note on the high E string, it sounds kind of like a sitar string. I don't notice this on the other strings nor it the second string is fretted to play the same note as the first string.

Anyone have an idea what might be going on?
by dshaker
Fri Jun 27, 2014 3:21 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Another approach to the quick and dirty intonation method.
Replies: 11
Views: 21303

Re: Another approach to the quick and dirty intonation metho

Trevor- Wow! Thanks for the feedback! I had no idea anyone was paying attention and I had no idea I would be able to get so close! Woot! I suspect my actual execution was done with less precision than your modeling, but my guitar still plays pretty darned nicely as far as intonation goes. Thanks for...
by dshaker
Wed Jun 18, 2014 7:33 am
Forum: Instrument Builders Forum
Topic: Scalloping
Replies: 15
Views: 12320

Re: Scalloping

Perhaps an abrasive flap wheel - basically a wheel with fingers of sand paper. You would need something temporary in the fret slots to keep that part high - perhaps stiff rubber would do it - but it might give the kind of wear you would expect from many years of being played.
by dshaker
Tue Jun 17, 2014 4:03 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Another approach to the quick and dirty intonation method.
Replies: 11
Views: 21303

Another approach to the quick and dirty intonation method.

I finished up my first Gore and Gilet-style steel-string acoustic yesterday. My wife was out of town last week so I was able to work on it pretty much whenever I wasn't at my day job. I spent much of the week at the dining room table, trying to get the intonation right. I tried using the Quick and D...
by dshaker
Tue Jun 10, 2014 2:29 pm
Forum: Instrument Builders Forum
Topic: Quilted maple bonanza? Or am I kidding myself?
Replies: 11
Views: 13511

Re: Quilted maple bonanza? Or am I kidding myself?

Mostly I think you are kidding yourself, but if you wanted to take a serious try, you could laminate the sides with the veneer and layers of spruce and then do a double-top style back with the maple, then nomex, then spruce. It might be crap, but it might be amazing.
by dshaker
Sat Jun 07, 2014 3:53 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Steel strings: slot the bridge? or the pins?
Replies: 2
Views: 4633

Steel strings: slot the bridge? or the pins?

Does anyone have any well-reasoned prejudices for slotting the bridge or the bridge pins when executing a steel string based on The Book? From what I can see: Slot the bridge and the ball end gets hung up on the end of the pin less often. Slot the pin and you don't start out with a bridge plate that...
by dshaker
Wed May 28, 2014 7:18 am
Forum: Instrument Builders Forum
Topic: Label design
Replies: 16
Views: 14244

Re: Label design

The font used for the detail information and the decorative flourishes both have line weights that vary significantly and do not have a drop shadow. I would want to see what it would look like with the "Malu" in a font that had varying weights depending on line direction. I don't know if it would lo...
by dshaker
Thu May 08, 2014 9:01 am
Forum: Instrument Builders Forum
Topic: Classical Guitar maker needing motivation
Replies: 25
Views: 23900

Re: Classical Guitar maker needing motivation

Well...

Perdomo Reserve 10th Anniv. Champagne ROBUSTO lacquered wood cigar box humidor

http://r.ebay.com/wbcVMY
by dshaker
Thu Apr 24, 2014 3:59 am
Forum: Instrument Builders Forum
Topic: dying ebony fretboards
Replies: 13
Views: 16069

Re: dying ebony fretboards

Yup, leather dye will work fine. Stew-Mac sells Fiebing's black leather dye as their fingerboard stain. And, yes, I don't want to use real African ebony, either. Its ecological status is too fragile and, in addition, it expands and contracts too much to really be a good fingerboard for guitars. I am...
by dshaker
Wed Apr 23, 2014 3:41 am
Forum: Instrument Builders Forum
Topic: Classical Guitar maker needing motivation
Replies: 25
Views: 23900

Re: Classical Guitar maker needing motivation

When I have been moved to start a cigar box guitar, I go on down to the local cigar store and offer them $3 or $5 a box. Is that not an option in Australia? If, for some reason, cigar boxes are rare and unusual beasts in Australia, I can mail you folks some. It would be a waste to spend a lot on tra...
by dshaker
Wed Apr 16, 2014 4:00 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Fretting about fretting
Replies: 5
Views: 7195

Re: Fretting about fretting

Excellent!
1) I have a second reason to buy another tool (my wife would say "YET another tool")!
2) I have a reasonable way of dealing with the glue overflow!
and
3) I have a way of avoiding glue overflow.

That's what I call a productive forum inquiry!

-Doug Shaker
by dshaker
Tue Apr 15, 2014 3:57 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Fretting about fretting
Replies: 5
Views: 7195

Fretting about fretting

The Book recommends running a thin bead of Titebond along the fret slot and then pressing or hammering the fret wire in place. I have not had much luck putting a thin bead of Titebond accurately down the slot. Sometimes I get it right, but often I get slop on my nice sanded-to-400-grit fretboard and...
by dshaker
Tue Apr 08, 2014 6:46 am
Forum: Instrument Builders Forum
Topic: High angle block plane - angle? width?
Replies: 6
Views: 6610

Re: High angle block plane - angle? width?

Good point on the plane width.

My wooden planes are bevel down with the chip-breaker positioned about a millimeter or less behind the edge. And the plane mouth about 0.25 millimeters from the edge on the other side. Perhaps I should just be using a scraper on wood this wonky.
by dshaker
Tue Apr 08, 2014 2:50 am
Forum: Instrument Builders Forum
Topic: High angle block plane - angle? width?
Replies: 6
Views: 6610

High angle block plane - angle? width?

I have had some success making wooden planes for my lutherie work. I'm currently working on some curly black walnut with one of my planes and it is obvious I need to make a high-angle version of my block plane to avoid tear-out. Does anyone have any prejudices about either the ideal width or the ide...
by dshaker
Fri Mar 07, 2014 10:14 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Designing 12-string guitars and baritones
Replies: 18
Views: 24535

Re: Designing 12-string guitars and baritones

Good point about the case. I expect that bit of wisdom was learned through experience.
by dshaker
Fri Mar 07, 2014 6:26 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Designing 12-string guitars and baritones
Replies: 18
Views: 24535

Re: Designing 12-string guitars and baritones

For others interested in the baritone question, a copy of Cladersmith's paper can be found at: http://www.csc.kth.se/utbildning/kth/kurser/DT2212/Guitar%20Caldersmith.pdf Caldersmith defines a baritone as a fifth below a standard guitar (C-C tuning). He aims for a main air resonance of about 72 hert...
by dshaker
Thu Mar 06, 2014 7:42 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Designing 12-string guitars and baritones
Replies: 18
Views: 24535

Re: Designing 12-string guitars and baritones

Well, I see I haven't exactly set off a storm of discussion. Here are my thoughts, so far. 12-strings: Actually, you don't really want the frequency profiles to change much, so just engineer for greater strength. Don't change the body shape. Don't change the bracing pattern. Just make the bridge and...
by dshaker
Wed Mar 05, 2014 9:08 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Designing 12-string guitars and baritones
Replies: 18
Views: 24535

Designing 12-string guitars and baritones

I'm trying to think about how the design principles of The Book(s) can be applied 12-string guitars and baritones. The 12-string, obviously needs to be stronger to take the greater string tension. The string tension will be approximately doubled, so if the braces were 26% higher (cube root of 2 = ap...
by dshaker
Sat Jan 18, 2014 8:43 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Tap Test after Closing Box
Replies: 21
Views: 21303

Re: Tap Test after Closing Box

One of the guys (can't remember who, now) ended up building an acoustic "nest" around his guitar using old cushions etc. to kill of the extraneous noise and got much better results. Looking at your plots, there seems to be lot's of noise and not much signal, so the root of your problems may be the ...