You might try a solvent called Cellosolve. I believe blush eraser is Cellosolve, but you'd want to verify that.
Here's a link to Frank Fords excellent site on how he used it on an old crazed Martin.
http://www.frets.com/FretsPages/Luthier ... ator1.html
Search found 103 matches
- Sat Dec 05, 2020 10:01 am
- Forum: Instrument Builders Forum
- Topic: Nitrocellulose issue
- Replies: 11
- Views: 13068
- Fri Nov 20, 2020 12:12 pm
- Forum: Instrument Builders Forum
- Topic: It’s not your fault but
- Replies: 7
- Views: 8129
Re: It’s not your fault but
You can also make your own for about 10 cents.
You can get as accurate as want by by making it longer and using a shallow angle.
After cutting the wedge I just measured it with my dial caliper and marked it.
You can get as accurate as want by by making it longer and using a shallow angle.
After cutting the wedge I just measured it with my dial caliper and marked it.
- Sat Nov 07, 2020 3:48 am
- Forum: Instrument Builders Forum
- Topic: Bridge plate
- Replies: 3
- Views: 4497
Re: Bridge plate
Bummer, at this point if the guitar is for you I would just carry on and if there's a problem down the road fix it then. It is possible to remove a bridge and put in a new one, although I've never done it. You also might be able to add to the existing bridge plate with a narrow strip, it might be wo...
- Sun Nov 01, 2020 9:32 am
- Forum: Instrument Builders Forum
- Topic: Double V Neck Acoustic
- Replies: 23
- Views: 32839
Re: Double V Neck Acoustic
Wowzer!!! Great job on an unconventional build. Glad it works well too.
- Fri Jun 19, 2020 10:27 am
- Forum: Instrument Builders Forum
- Topic: First attempt at video editing
- Replies: 8
- Views: 7910
- Mon Jun 08, 2020 10:49 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Trevor’s video by Robbie
- Replies: 14
- Views: 25246
Re: Trevor’s video by Robbie
I just watched these, they're a good supplement to the book.
Thanks to Robbie and Trevor!
Thanks to Robbie and Trevor!
- Tue Jun 02, 2020 1:06 am
- Forum: Instrument Builders Forum
- Topic: Moving to the Desert
- Replies: 10
- Views: 10002
Re: Moving to the Desert
Hi Lillian, I'll be one of you're geographic neighbors, I'm just NW of Santa Fe it's a fabulous area. I'm at about 7000 ft and weather is mostly mild, winters are cold with some snow but lots of sunshine. It can make a 10 deg F day feel not too bad. If your putting up a shed to build in I would reco...
- Wed Mar 18, 2020 5:21 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: 1. falcate braced classical
- Replies: 17
- Views: 26847
Re: 1. falcate braced classical
Route it off like you're routing for binding. Set the depth to the top thickness and the width off cut equal to the sides = linings. You might need to do a little hand work over the tail and heel block, but otherwise you're pretty much done.
- Tue Feb 18, 2020 4:18 pm
- Forum: Instrument Builders Forum
- Topic: Carbon fibre splinters
- Replies: 2
- Views: 4834
- Sat Nov 09, 2019 11:24 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Bridge Rotation at 2.3deg
- Replies: 15
- Views: 19919
Re: Bridge Rotation at 2.3deg
Got it. I run VA on a PC so the live view is in a separate window.
Thanks.
Thanks.
- Sat Nov 09, 2019 7:51 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Bridge Rotation at 2.3deg
- Replies: 15
- Views: 19919
Re: Bridge Rotation at 2.3deg
JF, What's the green plot? Sorry I'm just trying to understand.
- Tue May 21, 2019 5:56 am
- Forum: Instrument Builders Forum
- Topic: Fly in Nitro Finish
- Replies: 4
- Views: 4993
Re: Fly in Nitro Finish
Let it dry, remove the fly, drop fill, wait a few days, level and move on.
- Sun Mar 24, 2019 5:47 am
- Forum: Instrument Builders Forum
- Topic: Alternative to a Stewmac buffer
- Replies: 9
- Views: 15444
Re: Alternative to a Stewmac buffer
Here's one I made. I works very well, spins around 700-800 rpm. My only issue is that every time I use it I think to myself "I need to a belt guard over that top pulley". I used a piece of shafting from an industrial supply store and had a machinist friend cut the thread on it. IMG_3391.jpg IMG_3392...
- Mon Mar 18, 2019 1:59 pm
- Forum: Instrument Builders Forum
- Topic: Rope bindings advice please
- Replies: 17
- Views: 19153
Re: Rope bindings advice please
Hi Pete, It's been a while since I made this rosette so the process is a little fuzzy to me right now but near as I remember lamanoditrento's description of it is spot on. It took me a couple of attempts, the failure with the first one was due to using a water based glue like titebond. You obviously...
- Tue Jan 29, 2019 3:55 pm
- Forum: Instrument Builders Forum
- Topic: Spectra question
- Replies: 17
- Views: 16399
Re: Spectra question
Trevor, The amplitude difference between the t1,1 and t1,2 was my first thought too after rereading the section. With the set up in the original configuration, I held a book (your book BTW) 5-6" in front of the sound hole to know the amplitude of the t1,1 down. But I still had the deep trough, so I ...
- Sun Jan 27, 2019 4:24 pm
- Forum: Instrument Builders Forum
- Topic: Spectra question
- Replies: 17
- Views: 16399
Re: Spectra question
Well, I spent part of the day trying figure this out and I believe I made some progress. Looking at Trevor's references of section 2.4.2 it appears that frequencies can interact with one another depending on their phase and strength. I won't bore you with a bunch of spectra plots unless you want, bu...
- Fri Jan 25, 2019 4:25 pm
- Forum: Instrument Builders Forum
- Topic: Spectra question
- Replies: 17
- Views: 16399
Re: Spectra question
Trevor, Thanks for the references. I've been pretty tied up with some other work stuff, so I'm still chewing on this. I'll get closer to having this figured out in a few days, I think.
Jim
Jim
- Tue Jan 22, 2019 3:12 pm
- Forum: Instrument Builders Forum
- Topic: Spectra question
- Replies: 17
- Views: 16399
Re: Spectra question
Ross, I just trashed my shop computer and my old amplifier a few months back, cleaning up the shop! Oh well
- Tue Jan 22, 2019 10:16 am
- Forum: Instrument Builders Forum
- Topic: Spectra question
- Replies: 17
- Views: 16399
Re: Spectra question
Thanks Trent, I'm one of those very few anti smart phone guys.
As I was thinking about it a little more this seems more than likely a phase thing with the back. I'll check the black book for some more info.
I'll try retapping in the next day or two and see if I can get anything different.
Jim
As I was thinking about it a little more this seems more than likely a phase thing with the back. I'll check the black book for some more info.
I'll try retapping in the next day or two and see if I can get anything different.
Jim
- Tue Jan 22, 2019 5:09 am
- Forum: Instrument Builders Forum
- Topic: Spectra question
- Replies: 17
- Views: 16399
Re: Spectra question
Thanks for the replies. This guitar is being built by a student over a long time period, a few years. I was just going over my notes, it appears we wanted to leave the top thick so we could bring down the resonances. The idea being he'd learn something from that exercise (me too of course) and he'd ...
- Sun Jan 20, 2019 5:15 pm
- Forum: Instrument Builders Forum
- Topic: Spectra question
- Replies: 17
- Views: 16399
Re: Spectra question
Ross,
It looks we posted at the same time.
The uncoupled top is at 222 Hz. I had planed to do some top thinning on this one, but this is probably more than I wanted.
It looks we posted at the same time.
The uncoupled top is at 222 Hz. I had planed to do some top thinning on this one, but this is probably more than I wanted.
- Sun Jan 20, 2019 5:12 pm
- Forum: Instrument Builders Forum
- Topic: Spectra question
- Replies: 17
- Views: 16399
Re: Spectra question
Hey martin, some addition information; - I used a Zoom h4 recorder for the mic. It actually has a pair of mics. - Recorded into Va, fft size of 16384 and sample rate of 11025. - The guitar was tapped with an eraser on a stick, lightly in the bridge area. - Averaged 10 samples. - The mic was little l...
- Sun Jan 20, 2019 6:47 am
- Forum: Instrument Builders Forum
- Topic: Spectra question
- Replies: 17
- Views: 16399
Spectra question
I'm currently working on a guitar and have a questions concerning the dip in the spectrum at 201Hz. I was anticipating the top to be there. The guitar is nearing completion, It's a fan braced classical, without a bridge at this point. I'd like to pull everything down a bit. So, what is it and why do...
- Sun Jan 20, 2019 3:16 am
- Forum: Instrument Builders Forum
- Topic: Hollowbody electric
- Replies: 25
- Views: 27790
- Sun Nov 11, 2018 4:26 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Predicting Panel Mass SS - Lookover
- Replies: 4
- Views: 6473
Re: Predicting Panel Mass SS - Lookover
John, you lost me on your area calculation. Pause.... .00119 is in Kg/cm correct? Now that I've considered the area calculation, that's an interesting way to do it.