Search found 479 matches

by Dave M
Sat Sep 18, 2021 2:32 am
Forum: Instrument Builders Forum
Topic: Building a kitset dreadnought
Replies: 15
Views: 799

Re: Building a kitset dreadnought

That herringbone is seriously neat. Did you have to separate down the centreline to get it round the curves?

Dave
by Dave M
Sun Sep 12, 2021 2:23 am
Forum: Instrument Builders Forum
Topic: Some activity in my workshop at last
Replies: 5
Views: 267

Re: Some activity in my workshop at last

Good on you Martin. That's not just a bit of activity!

I am myself decanting back into the shop now the gardening season is ending in this neck of the woods.

Cheers Dave
by Dave M
Sat Sep 04, 2021 3:07 am
Forum: Jigs & Fixtures
Topic: Scarf Joint
Replies: 0
Views: 350

Scarf Joint

In the recent GAL Mark French talks of working in Charles Foxes workshop. In the article I noticed Charles' jig for cutting the scarf joint in his headstocks on the bandsaw. I decided I just had to have one. I have been doing them freehand but that means a fair bit of cleaning up with a plane afterw...
by Dave M
Mon Aug 30, 2021 1:28 am
Forum: Instrument Builders Forum
Topic: Building a kitset dreadnought
Replies: 15
Views: 799

Re: Building a kitset dreadnought

Richard I am certainly following. I think that any build thread throws up a gem or two to help ones own build process.

Cheers Dave
by Dave M
Sat Aug 14, 2021 8:53 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Collecting 4DOF models
Replies: 26
Views: 2217

Re: Collecting 4DOF models

Yes Sitka. And CF under and over all braces and under the bridge plate. Braces also in Sitka. D
by Dave M
Sat Aug 14, 2021 2:04 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Collecting 4DOF models
Replies: 26
Views: 2217

Re: Collecting 4DOF models

Sorry thought I had said. It is steel string, based very closely on Trevor's design in the book for a mid sized SS. Assuming you have the book you can fairly easily work out the area since it is printed on a grid of squares. (and that takes me back a bit trying to measure the area uder curves on spe...
by Dave M
Fri Aug 13, 2021 8:32 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Soundport and Weight Effects on Frequencies
Replies: 6
Views: 609

Re: Soundport and Weight Effects on Frequencies

Richard this may or may not be relevant... John I remember that you ended up using fairly tall falcate braces on your classicals. But I wonder what top thickness you ended up with? I have a falcate classical sitting in a corner because it turned out so dull and I am planning on thinning the top seri...
by Dave M
Fri Aug 13, 2021 8:14 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: The Boucher bar
Replies: 0
Views: 181

The Boucher bar

There has been a lot of discussion about the effect of a substantial transverse brace sitting under the saddle position on the sound of a classical guitar on some other forums - not wishing to mention Delcamp! But I wonder what the effect on the modal performance of the top is...? I would imagine th...
by Dave M
Thu Aug 12, 2021 2:27 am
Forum: Anything Goes
Topic: Luthier lab
Replies: 8
Views: 1478

Re: Luthier lab

Mike appreciate your post and this completely allays my fears. I think it is great that you and your partner should put in the effort and make it available. As a student of Al Caruth we can be sure you know what you are doing. Having only recently acquired a phone that is big enough for me read I sh...
by Dave M
Tue Aug 10, 2021 2:08 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Collecting 4DOF models
Replies: 26
Views: 2217

Re: Collecting 4DOF models

It's a long story but i have been able to get an approximate weight for a falcate top. This has approx 5 mm extra round the edges and does not have to cutaway removed yet. It is a little less than 3 mm thick Came in at around 230 g.

Cheers Dave
by Dave M
Sat Aug 07, 2021 2:37 am
Forum: Instrument Builders Forum
Topic: More spindle moulder fun
Replies: 2
Views: 488

Re: More spindle moulder fun

Fun indeed. That looks like a helical cutter rather than a sanding bobbin...? With a bearing at the base?

Having invested the time to make the jigs that certainly makes the tasks quick and perhaps more importantly repeatable.
by Dave M
Sat Aug 07, 2021 2:24 am
Forum: Instrument Builders Forum
Topic: Simple deflection test for soundboards
Replies: 2
Views: 566

Re: Simple deflection test for soundboards

Deflection testing is a perfectly viable method for measuring the Youngs modulus of a soundboard - I would do it with a series of weights and a dial gauge on a half top board. It would need to be smooth and rectangular. The formula is widely available on the net. However the problem then is to use t...
by Dave M
Tue Aug 03, 2021 6:16 am
Forum: Instrument Builders Forum
Topic: Torrefied Tonewood
Replies: 24
Views: 1944

Re: Torrefied Tonewood

Love it. D
by Dave M
Mon Aug 02, 2021 1:09 am
Forum: Instrument Builders Forum
Topic: Torrefied Tonewood
Replies: 24
Views: 1944

Re: Torrefied Tonewood

I don't really think it is going to make a guitar sound more like a Torres!

D
by Dave M
Fri Jul 23, 2021 1:35 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Falcate brace template
Replies: 4
Views: 461

Re: Falcate brace template

This is a fairly close version of Trevor's medium SS. I think the most important bit as Martin has suggested is to make sure they fit cleanly between the bridge pins.
by Dave M
Fri Jul 16, 2021 2:10 am
Forum: Instrument Builders Forum
Topic: Stewmac Intonator
Replies: 5
Views: 827

Re: Stewmac Intonator

Thanks people. Time is in short supply just now so was hoping to just buy one. Dave
by Dave M
Thu Jul 15, 2021 5:10 am
Forum: Instrument Builders Forum
Topic: Stewmac Intonator
Replies: 5
Views: 827

Stewmac Intonator

Does the intonator from Stewmac work with the typical curved arrangement of bridge pins on a Gore bridge do we know?

Dave
by Dave M
Mon Jul 12, 2021 12:30 am
Forum: Instrument Builders Forum
Topic: Tonewood in Alaska?
Replies: 10
Views: 1208

Re: Tonewood in Alaska?

Alaska Speciality Woods are up there. They specialise in salvaged and blown down trees. Don’t know exactly where they are but look them up.

Cheers Dave
by Dave M
Sun Jul 11, 2021 8:49 am
Forum: Instrument Builders Forum
Topic: How do you profile your bridge?
Replies: 10
Views: 1098

Re: How do you profile your bridge?

This is a bit off topic since Talldad is referring to a steel string bridge but it is worth noting that when shaping the underside of a classical bridge you should do this process before finishing the shaping of the wings of the bridge. Particularly if you have a fairly high dome in the lower bout y...
by Dave M
Sun Jul 11, 2021 8:40 am
Forum: Instrument Builders Forum
Topic: New Gore Guitars website
Replies: 7
Views: 1044

Re: New Gore Guitars website

Interesting Trevor. I don’t recall a big add on cost but it was a few years ago. Maybe with our economy slumping for years we are all too poor! However I do hope that the sales have recompensed you and Gerard for the huge amount of work that must have gone into it. As well as the kudos of having pro...
by Dave M
Fri Jul 09, 2021 6:52 am
Forum: Instrument Builders Forum
Topic: New Gore Guitars website
Replies: 7
Views: 1044

Re: New Gore Guitars website

It may seem a bit off target but I wonder if you have a rough breakdown of where your book has sold around the world? Difficult to justify the question but I suppose i’m wondering where in the world there is a curiosity about how guitars work and how to build better ones. I would hope that the U.K. ...
by Dave M
Fri Jul 09, 2021 6:39 am
Forum: Instrument Builders Forum
Topic: How do you profile your bridge?
Replies: 10
Views: 1098

Re: How do you profile your bridge?

I’ve always thought doing it on the actual guitar is a bit dodgy - too many ways to damage the top. I have a lathe and I have made a mushroom like jig with the radius required, covered with I think 80 grit paper and use that. It is still a lengthy job but not that unreasonable. I use a white pencil ...
by Dave M
Fri Jul 09, 2021 6:14 am
Forum: Instrument Builders Forum
Topic: Looking of old copies of The Strad
Replies: 5
Views: 788

Re: Looking of old copies of The Strad

I’m wondering if the Delcamp forum might be a good place to look. There is a bit of violin stuff on there. Alan Carruth regularly posts and he started out with violins.

Cheers Dave.

PS am still studying your mandolin book in preparation for the change to a completely different build!
by Dave M
Sat Jul 03, 2021 8:00 pm
Forum: Instrument Builders Forum
Topic: New Gore Guitars website
Replies: 7
Views: 1044

Re: New Gore Guitars website

Big improvement. I was only the other day checking your old site and thinking it hadn't changed much!

Dave
by Dave M
Fri Jul 02, 2021 2:02 am
Forum: Instrument Builders Forum
Topic: Tear out
Replies: 8
Views: 1134

Re: Tear out

I ended up drop filling with lacquer the last time this happened. It took quite a lot of doing but it did work.