Search found 12 matches

by jonwallace
Mon Jan 16, 2017 12:47 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Help needed with classical bolt-on neck
Replies: 8
Views: 10921

Re: Help needed with classical bolt-on neck

Thanks to all, and especially the detailed explanation from Trevor.

Jon
by jonwallace
Sat Jan 14, 2017 3:11 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Help needed with classical bolt-on neck
Replies: 8
Views: 10921

Re: Help needed with classical bolt-on neck

On reflection, I can understand why the wedge extends only to the 12th fret - it is the centre of the rotation that is being applied. Also, the wedge is made from neck wood, so it may not look right sitting on the soundboard. I guess I just don't understand how the fretboard extension will sit flat ...
by jonwallace
Sat Jan 14, 2017 2:53 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Help needed with classical bolt-on neck
Replies: 8
Views: 10921

Re: Help needed with classical bolt-on neck

It states it in section 4.6.12.3, 2nd paragraph below Fig 4.6-40.
I'm sure I read it somewhere else too - probably in the Build volume which I don't have to hand at the moment.

Thanks for your reply.
Jon
by jonwallace
Sat Jan 14, 2017 1:20 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Help needed with classical bolt-on neck
Replies: 8
Views: 10921

Help needed with classical bolt-on neck

I understand that the nut needs to be tilted up to achieve the correct string height at the saddle. Originally I assumed that the top of the neck was co-planer with the flattened upper bout and the fretboard wedge extended the FULL LENGTH of the fretboard and would therefore would sit flush on the t...
by jonwallace
Tue Aug 09, 2016 5:34 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: 19th/20th fret on Fleta classical
Replies: 12
Views: 14278

Re: 19th/20th fret on Fleta classical

I think I was getting a bit hung up on doing it the 'correct/traditional' way, but I can see now from the photos that there are many options and they all look excellent.
Thanks
Jon
by jonwallace
Mon Aug 08, 2016 11:28 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: 19th/20th fret on Fleta classical
Replies: 12
Views: 14278

Re: 19th/20th fret on Fleta classical

Do I cut the fretboard off square at the sound hole, or cut it around the sound hole with or without a 20th fret? Or overhang the sound hole like some of your other examples? I think I'll quickly draw it out and do what looks best to me. Thanks Jon If you want to keep with the look of the Fleta the...
by jonwallace
Mon Aug 08, 2016 11:01 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: 19th/20th fret on Fleta classical
Replies: 12
Views: 14278

Re: 19th/20th fret on Fleta classical

If its any help. I just checked my fleta build. Full 19th spilt 20th. The 2x E strings hit the split 20th fret right in the middle. 650mm scale. Built roughly close to the plan from the gore/gilet book. Yes, it is some help. I'd wondered whether a split 20th fret might work, and you've confirmed it...
by jonwallace
Mon Aug 08, 2016 8:16 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: 19th/20th fret on Fleta classical
Replies: 12
Views: 14278

Re: 19th/20th fret on Fleta classical

Martin, Thanks for your reply. Yes, my initial thought was to alter the plan slightly, but I guess I was interested in how others had dealt with it. Trevor, You've confirmed what I suspected, that there is no one way to do this. I think I had already decided that the 19th would be full because it is...
by jonwallace
Mon Aug 08, 2016 5:36 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: 19th/20th fret on Fleta classical
Replies: 12
Views: 14278

19th/20th fret on Fleta classical

I'm just starting my first classical and am going to follow the Fleta plan in the book. In most of the photos of this style of guitar the 19th fret is in line with the edge of the sound hole and is usually split. The fretboard is cut around the edge of the sound hole. On the plan, the sound hole cen...
by jonwallace
Tue Jun 17, 2014 1:57 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: I need help with saddle compensation equation 4.7-3
Replies: 3
Views: 5793

Re: I need help with saddle compensation equation 4.7-3

Trevor,

Thanks for your helpful reply.

I had thought these two methods were the reverse of each other - I can now see that they're not.
I was trying to use equation 4.7-3 to feed in different saddle compensation values and see the effect in cents change at each fret.

Thanks
Jon
by jonwallace
Sun Jun 15, 2014 7:19 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: I need help with saddle compensation equation 4.7-3
Replies: 3
Views: 5793

Re: I need help with saddle compensation equation 4.7-3

Also, just noticed that at the bottom of page 4-101 it says that for a scale length of ~650, 1 cent is equivalent to 0.3753mm change in length, but feeding this value into 4.7-3 gives a tonal change of 2 cents.

Can anyone help me make sense of this?
Thanks
Jon
by jonwallace
Sun Jun 15, 2014 6:08 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: I need help with saddle compensation equation 4.7-3
Replies: 3
Views: 5793

I need help with saddle compensation equation 4.7-3

Hi, Equation 4.7-3 which calculates the cents tonal shift for an applied saddle compensation, seems to give a result that is different by a factor of 2 when compared to calculating the value using another technique. For example, at fret 12 for a scale length of 645, nut compensation of 0 and saddle ...