Hi Trevor
I have a chance to be in Melbourne during 2024 from the uk. Have you got any potential dates for the next class please?
Search found 193 matches
- Wed Apr 24, 2024 12:41 am
- Forum: Instrument Builders Forum
- Topic: Re: Modal Tuning Course, Melbourne Notice - Rescheduled
- Replies: 8
- Views: 17125
- Tue Apr 23, 2024 8:42 pm
- Forum: Instrument Builders Forum
- Topic: Sealing bindings/ purflings before pore filling alternates
- Replies: 6
- Views: 256
Re: Sealing bindings/ purflings before pore filling alternates
It’s not clear to me what your question or problem is. Could you redraft it at all?
- Tue Mar 19, 2024 6:06 pm
- Forum: Instrument Builders Forum
- Topic: Carbon Fibre Threads
- Replies: 5
- Views: 669
Re: Carbon Fibre Threads
Thanks for your input John. I will be using the CF on my current build. Despite the messiness of epoxy and fibre threads, my main reservation, I’m curious as to its overall effect. Another logical conclusion is that the spruce will deteriorate due to cold creep, at which point the CF will take over ...
- Mon Mar 18, 2024 9:33 pm
- Forum: Instrument Builders Forum
- Topic: Carbon Fibre Threads
- Replies: 5
- Views: 669
Re: Carbon Fibre Threads
Thanks for getting back to me Trevor. Despite a degree in Maths and a lifetime of computer coding I have a bent for understanding things holistically rather than technically. So I read that para and got confused at the point where you wrote "virtually eliminates Cold Creep" If CC is caused by consta...
- Mon Mar 18, 2024 5:07 am
- Forum: Instrument Builders Forum
- Topic: Carbon Fibre Threads
- Replies: 5
- Views: 669
Carbon Fibre Threads
I have Trevor and Gerard's amazing books and thought it's time to build a Falcate braced steel string guitar. The process of adding a single tow of carbon fibre sounded exciting so I thought I would experiment to see exactly what its addition does. So I built a brace 500m long 5mm thick and 13mm tal...
- Thu Mar 14, 2024 6:57 pm
- Forum: Instrument Builders Forum
- Topic: Acoustic side height calculation
- Replies: 3
- Views: 2610
Re: Acoustic side height calculation
Side heights are difficult to use as the top is also radiussed(!) hence there is no straight line to measure to. I scribe, hand plane it rough. My dish has a 60cm diameter round piece of sandpaper in it, so I sand the kerfing and sides using that. I also use the radius dish on top of the sides and b...
- Fri Mar 01, 2024 7:17 pm
- Forum: Instrument Builders Forum
- Topic: Laser engravers
- Replies: 5
- Views: 825
Re: Laser engravers
I bought one, an X1Pro 10W, last year . It's a game changer with caveats. My main use case is in cutting 3mm Basswood into accurate templates that I can then transfer to real wood and cut around. Great for brace layouts, inlay designs, bridges, sound hole decorations and logos. The accuracy makes it...
- Thu Aug 03, 2023 4:59 am
- Forum: Instrument Builders Forum
- Topic: bracing
- Replies: 30
- Views: 41621
Re: bracing
So I'm about to start my next guitar build and I want to use some NZ timbers on it , specifically the top the neck and the bracing. I'm using black walnut for the back and sides and I wanted to use Pauduk for the the back bracing for some colour and strength but obviously that's not a kiwi timber a...
- Tue Jun 06, 2023 2:16 am
- Forum: Instrument Builders Forum
- Topic: kerfed lining material?
- Replies: 4
- Views: 10785
Re: kerfed lining material?
I’ve taken to making my own kerf using 4-5 laminated strips glued into a jig the shape of the guitar. It’s a lot more faff, it’s much more fiddly to keep it compressed in the jig and it needs to be more than 17mm tall as it doesn’t go around the dish curvature of the rim very well so it requires tri...
- Sun May 28, 2023 7:16 am
- Forum: Instrument Builders Forum
- Topic: Chladni and VA tests ???
- Replies: 61
- Views: 80573
Re: Chladni and VA tests ???
Hi Alex, Good to see you coming over to the dark side :mrgreen: As John mentions your gain might be a bit high...the plots look a bit lumpy. Can you give us a run down on your equipment and your method? ie VA settings, mic, computer, where youre holding mic, how your holding the guitar etc. Ditto f...
- Sun Apr 16, 2023 5:41 pm
- Forum: Instrument Builders Forum
- Topic: Triple 0 in Blackhearted Sassafras and Bunya Pine
- Replies: 28
- Views: 88295
Re: Triple 0 in Blackhearted Sassafras and Bunya Pine
That’s beautiful sassafras Bob. You must be very pleased with how it’s looking.
What made you choose which side to have on show?
The inside face seems to have more symmetry, the outside is nice but more asymmetric.
What made you choose which side to have on show?
The inside face seems to have more symmetry, the outside is nice but more asymmetric.
- Fri Apr 07, 2023 7:30 am
- Forum: Instrument Builders Forum
- Topic: Pore fill question
- Replies: 21
- Views: 35854
Re: Pore fill question
I’ve been using this for the last two years and have found it to be very reliable. Very easy to apply, very easy to sand back. Epoxy is bomb proof but just too much like hard work for me. That said I never use cellulose for a finish, I mainly go for waterborne products. Aqua Coat Clear Wood Grain Fi...
- Mon Mar 27, 2023 4:53 pm
- Forum: Instrument Builders Forum
- Topic: French polishing
- Replies: 30
- Views: 35680
Re: French polishing
What spray gun are you using? Full size or one of those modellers ones? I've been thinking of trying spraying if I could spray shellac that'd be ideal! Also, what's the shelf life of that Hard Shellac stuff? I bought into the Fuji spray hvlp system. I went for their best spray gun and it’s amazing....
- Tue Mar 21, 2023 8:30 am
- Forum: Instrument Builders Forum
- Topic: French polishing
- Replies: 30
- Views: 35680
Re: French polishing
I believe hard shellac can be sprayed. Bodying is basically building up very thin layers of shellac. The final shine is achieved with the final pad sessions where you reduce the cut of the shellac mix. I'm not sure a spray gun can apply layers off finish as thin as you can apply with a pad. My thou...
- Sun Mar 19, 2023 6:47 am
- Forum: Instrument Builders Forum
- Topic: French polishing
- Replies: 30
- Views: 35680
Re: French polishing
Has anyone experimented with spraying shellac?
Spend some time getting shellac onto the guitar, reasonably quickly with a hvlp sprayer, then bodying to get a shine.
Repeat the process until satisfied.
I like French polishing but you sure can have too much of a good thing.
Spend some time getting shellac onto the guitar, reasonably quickly with a hvlp sprayer, then bodying to get a shine.
Repeat the process until satisfied.
I like French polishing but you sure can have too much of a good thing.
- Fri Jan 13, 2023 5:58 am
- Forum: Instrument Builders Forum
- Topic: Multiscale bridge over uncompensated bracing
- Replies: 8
- Views: 3999
Re: Multiscale bridge over uncompensated bracing
I like your solution a lot. It gives the player a reasonable chance of resting the ball of their hand on a comfortable part of the bridge and still access all strings equally.
- Fri Jan 06, 2023 7:57 am
- Forum: Instrument Builders Forum
- Topic: Bridge length on WRC OM build
- Replies: 7
- Views: 10731
Re: Bridge length on WRC OM build
At a facile level, the bridge contract area is sufficient for a specific pull strength of the strings. The bracing underneath does not determine what contact area is required. A larger contact area could lead to more mass on your soundboard as the bridge is larger. The technical term for this is ‘ b...
- Wed Dec 07, 2022 5:39 am
- Forum: Instrument Builders Forum
- Topic: Frets causing back bow
- Replies: 8
- Views: 12318
Frets causing back bow
My fret saw is 0.5mm, my fret tangs are 0.5mm wide so why when I install the Frets do I get a back bow on my fretboard I wonder? I secure them in out of habit with titebond, I can see how that might not be necessary but can’t see why that would add to the back bow. Any thoughts and tips would be rea...
- Sun Sep 25, 2022 5:12 am
- Forum: Instrument Builders Forum
- Topic: Posting photos
- Replies: 17
- Views: 67277
Re: Posting photos
On a Mac just open the photo in Preview and select edit.
800 x 600 is a good resolution
800 x 600 is a good resolution
- Sun Jul 03, 2022 8:01 pm
- Forum: Instrument Builders Forum
- Topic: Bluetop35
- Replies: 10
- Views: 7976
Re: Bluetop35
Woof!
That is quite simply beautiful!
Well done, I don’t usually get paint over woods but the balance there is perfect.
That is quite simply beautiful!
Well done, I don’t usually get paint over woods but the balance there is perfect.
- Mon May 30, 2022 5:40 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Target deflection for guitar tops
- Replies: 4
- Views: 11740
Re: Target deflection for guitar tops
My preferred technique was to join the two halves and cut the board to a specific sized rectangle and thickness it until it sounds musically perfect. I then support it at the top and bottom edges and place a 2kg weight in the centre and measured the deflection. I would repeat this with a 1kg support...
- Mon Jan 10, 2022 10:06 pm
- Forum: Instrument Builders Forum
- Topic: Shed advice
- Replies: 16
- Views: 20126
Re: Shed advice
We are separated by a common language.
In England this is a shed! Very jealous.
In England this is a shed! Very jealous.
- Fri Jan 07, 2022 8:03 pm
- Forum: Instrument Builders Forum
- Topic: Visual Analyzer on a Mac
- Replies: 3
- Views: 3781
Re: Visual Analyzer on a Mac
Have you tried using the FFT Tools by Studio Six? They have an iOS app which is great for recording taps on your instrument. The Mac based equivalent will also display your data. Attached is a screenshot of two testing results, green is of a dozen taps across the back of a guitar, averaged, orange i...
- Fri Nov 05, 2021 7:33 pm
- Forum: Instrument Builders Forum
- Topic: Neck Taper
- Replies: 16
- Views: 24086
Re: Neck Taper
Darn it!
The spindle on the safe t planer is bigger than the 10mm on the Proxxon chuck. I need a big drill press it seems.
The spindle on the safe t planer is bigger than the 10mm on the Proxxon chuck. I need a big drill press it seems.
- Tue Nov 02, 2021 7:33 pm
- Forum: Instrument Builders Forum
- Topic: Neck Taper
- Replies: 16
- Views: 24086
Re: Neck Taper
https://www.proxxon.com/en/micromot/28124.php?search I have my doubts that Proxxon is big enough to handle a Safe-T-Planer. [/quote] From memory, I think the safe-t planer recommends using with speeds >2500 rmp which is much faster than you would normally think for such a large bit. [/quote] Thanks...