Search found 245 matches

by Dave M
Tue Aug 21, 2018 7:05 am
Forum: Instrument Builders Forum
Topic: Pore fill Bindings
Replies: 1
Views: 18

Pore fill Bindings

Do people pore fill bindings? I have a maple back & sides steel string on the bench and am pore filling the mahogany neck, the rosewood headstock veneer and the relatively broad rosewood tail graft, all of which have pretty obvious pores. The bindings are the usual around 6 mm deep by 2 mm width and...
by Dave M
Mon Aug 20, 2018 2:06 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Rosette Router Jig
Replies: 1
Views: 60

Re: Rosette Router Jig

Thanks for that Trevor. It is maybe time to step up from the simple version you described in the book.

I have to say how much better I found the DeWalt trimmer compared to the well known UK make that I have been using.
by Dave M
Tue Aug 07, 2018 5:27 am
Forum: Tutorials
Topic: Japanese woodwork and lots of planes
Replies: 2
Views: 215

Re: Japanese woodwork and lots of planes

Thanks that was fascinating. It speaks of many years of acquiring the skills. I can barely believe that a single stroke with a plane could produce those thin veneers of marquetry intact.
by Dave M
Sat Aug 04, 2018 9:05 pm
Forum: Instrument Builders Forum
Topic: Neck Thickness
Replies: 7
Views: 268

Re: Neck Thickness

Thanks for the reassurance. It was just a moment of panic seeing this slender piece of timber and thinking of all the stress it would be carrying. Alan I don't think I would even try a harder neck material! Also I am simply following the G&G methodology. Previously I was blending the tapered neck sh...
by Dave M
Sat Aug 04, 2018 1:35 am
Forum: Instrument Builders Forum
Topic: Neck Thickness
Replies: 7
Views: 268

Re: Neck Thickness

I didn't explain too well... this is the neck without fingerboard. I have a minimum of around 6 mm to the truss rod groove so that should be OK. I take the comments on neck feel but my real concern is whether it is going to be strong enough. I guess I could leave the fretboard at 6.5 to add a bit, b...
by Dave M
Fri Aug 03, 2018 7:23 am
Forum: Instrument Builders Forum
Topic: Neck Thickness
Replies: 7
Views: 268

Neck Thickness

I have inadvertently taken my neck down to 15.4 mm around the 1st fret. It will get a bit thinner at the zero fret position. This a Steel string done in Mahagany. Is this too thin? Do I have to consider glueing on a veneer or is this going to work? It really feels very thin to me. I have already put...
by Dave M
Mon Jul 30, 2018 3:07 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Further J45 questions
Replies: 12
Views: 603

Re: Further J45 questions

Well I wish I'd read this a few days ago - assuming it had been written. I think that must have been what happened to me. My bindings came out less tall than the should have been. I thought I had sized them right so it could indeed have been the donut problem you mention. Bit difficult to see by ins...
by Dave M
Fri Jul 27, 2018 6:07 am
Forum: Instrument Builders Forum
Topic: Routing bindings/purflings
Replies: 24
Views: 718

Re: Routing bindings/purflings

Thanks Steve. It is entirely based on G&G's design with a bit of development looking at what others have done. (Oh and any reference to coal mining pit gear will earn a slap!) It's rather typical of a number of jigs one makes for the build process. You spend quite a lot of time and effort building t...
by Dave M
Thu Jul 26, 2018 8:30 am
Forum: Instrument Builders Forum
Topic: Routing bindings/purflings
Replies: 24
Views: 718

Re: Routing bindings/purflings

Well it is not a panacea. Routers whiring away are, at least for me, always a bit of a worry. However with this setup, using only spruce and maple back and sides I haven’t had any chip out. What I do get, doing the top corner is fuzz. Ie fibres of the spruce that have not been cleanly cut. I always ...
by Dave M
Thu Jul 26, 2018 3:11 am
Forum: Instrument Builders Forum
Topic: Routing bindings/purflings
Replies: 24
Views: 718

Re: Routing bindings/purflings

Pictures:
by Dave M
Thu Jul 26, 2018 2:43 am
Forum: Instrument Builders Forum
Topic: Routing bindings/purflings
Replies: 24
Views: 718

Re: Routing bindings/purflings

I do as Wayne. It took a couple of iterations to get the router holding tower right. I use a counterweight to reduce the load the router puts on the guitar top. I have also modified the cradle so it will take all the shapes I use - have just bound one based on Trevor's medium SS and had to increase ...
by Dave M
Wed Jul 18, 2018 5:08 am
Forum: The Gallery
Topic: 12 fret BRW small body
Replies: 22
Views: 6124

Re: 12 fret BRW small body

That must have been very interesting; to see how your design has stood up to serious playing over a significant time period. I imagine it was falcate braced with CF so the top probably didn't move much but I wonder if it continued to compress a little? Did the saddle positions need lengthening at al...
by Dave M
Thu Jul 12, 2018 3:01 am
Forum: The Gallery
Topic: Falcate braced Parlour
Replies: 11
Views: 561

Re: Falcate braced Parlour

Some very nice work there Francis, the rosette is very well crafted and looks great.

I see you are using unconventional back joint reinforcing. Is that just for fun?
by Dave M
Fri Jul 06, 2018 6:51 am
Forum: Instrument Builders Forum
Topic: 8 String bocote falcate braced nylon string crossover guitar
Replies: 6
Views: 598

Re: 8 String bocote falcate braced nylon string crossover guitar

As always nice looking work John. As always I am interested in the falcate bracing. You presumably beefed it up a bit for the extra strings so I wonder what height you ended up with? I wonder if you have had time yet to look at resonant frequencies, and perhaps particularly with this one, the bridge...
by Dave M
Mon Jul 02, 2018 3:10 am
Forum: Instrument Builders Forum
Topic: 100 tutes
Replies: 10
Views: 597

Re: 100 tutes

Yes. Muchly.
by Dave M
Sun Jul 01, 2018 2:53 am
Forum: Instrument Builders Forum
Topic: Using Abalone
Replies: 15
Views: 1040

Re: Using Abalone

Again thanks. I didn't get the depth of groove as close as I meant to but hard block sanding as Trevor suggested did the trick. I will take it to a finer grit as suggested. It is NZ Paua. Real fancy looking stuff isn't it? It wouldn't do to use too much of it unless you are going for a real bling mo...
by Dave M
Sat Jun 30, 2018 3:48 am
Forum: Instrument Builders Forum
Topic: Using Abalone
Replies: 15
Views: 1040

Re: Using Abalone

I have been unable to log in for a while so thanks to everyone for the advice. In the meantime my second go has been much better. After sanding the shell is a little dull, but I imagine the finish will bring that back up.
by Dave M
Fri Jun 15, 2018 5:27 am
Forum: Instrument Builders Forum
Topic: Using Abalone
Replies: 15
Views: 1040

Using Abalone

Forgive me if this is too basic a question but I am trying to use abalone for a rosette for the first time. I had to throw my first top out due to a mistake with the (falcate) bracing and didn't that hurt, but I had inlaid a layer of shell with a couple of purfling lines round it for the rosette and...
by Dave M
Sun Jun 03, 2018 7:30 am
Forum: Jigs & Fixtures
Topic: Cheap nut and saddle vise
Replies: 2
Views: 1050

Re: Cheap nut and saddle vise

Now that I like!

I've been thinking of adding some tall jaws to my Parrot vice for dealing with nuts and saddles but that looks like a good solution. Thanks for the idea.
by Dave M
Sat Jun 02, 2018 12:54 am
Forum: Instrument Builders Forum
Topic: New to the group and guitar building
Replies: 57
Views: 2609

Re: New to the group and guitar building

Images are fine from this side of the globe!
by Dave M
Sat Jun 02, 2018 12:53 am
Forum: Tutorials
Topic: Cutting notches in braces
Replies: 4
Views: 925

Cutting notches in braces

I realised that we already use a depth stop on our fret saw to cut specific depths and this could be used to do a series of cuts in a brace to be followed by a chisel. It worked well for me.
by Dave M
Sat Apr 21, 2018 6:28 am
Forum: Anything Goes
Topic: Book This is your brain on music
Replies: 0
Views: 379

Book This is your brain on music

I have just been re reading this book by Daniel Levitin. While it is not immediately relevant to instrument making, for those who are interested in how we make, listen and respond to music it is fascinating. It does provide some deep background for our discussions of intonation and temperament. Alth...
by Dave M
Sat Apr 14, 2018 11:04 pm
Forum: Instrument Builders Forum
Topic: Donations drive to help cover forum running costs
Replies: 19
Views: 2535

Re: Donations drive to help cover forum running costs

No Martin thanks to you for keeping this going. Dave
by Dave M
Tue Apr 10, 2018 9:05 am
Forum: Instrument Builders Forum
Topic: Cutting 1mm slots / rings for rosettes
Replies: 15
Views: 1622

Re: Cutting 1mm slots / rings for rosettes

Trevor you mention third party high quality collets for the dewalt routers you use. A quick search doesn’t give an obvious supplier. Without getting too commercial where should we be looking - the cnc tooling people perhaps...? I was surprised to see the specs of such devices, the best are seriously...
by Dave M
Tue Mar 27, 2018 7:13 am
Forum: Instrument Builders Forum
Topic: Soundboard gluing failure
Replies: 19
Views: 1686

Re: Soundboard gluing failure

I am absolutely with Steve on this. The surfaces with titebond on them will not reglue properly. You are at an early stage with this soundboard. Cut down the line with the finest kerf saw/bandsaw you can find and just maybe the rosette can be fudged a little to look OK. It is my experience as an ama...