Search found 191 matches

by TallDad71
Fri Sep 04, 2020 6:11 pm
Forum: Instrument Builders Forum
Topic: Soundboard Sonic Signature
Replies: 17
Views: 232112

Re: Soundboard Sonic Signature

The figures from the walnut guitar seem to imply it has a heavy bridge (relatively low T(1,1)2, relatively high stiffness). A heavy bridge would explain the lack of excitement in the sound, as it will be less responsive to higher frequencies. How heavy was the bridge? Thanks for this Trevor. The br...
by TallDad71
Thu Sep 03, 2020 6:50 pm
Forum: Instrument Builders Forum
Topic: Soundboard Sonic Signature
Replies: 17
Views: 232112

Re: Soundboard Sonic Signature

in my limited experience, those monopoles seem rather low...Ross The weak guitar does have lower monopole frequencies. I don’t quite know why. The soundboard was thicknesses according to equations as opposed to look and feel and sound. However the bracing was optimised by sound and feel the same as...
by TallDad71
Thu Sep 03, 2020 6:30 pm
Forum: Instrument Builders Forum
Topic: Soundboard Sonic Signature
Replies: 17
Views: 232112

Re: Soundboard Sonic Signature

blackalex1952 wrote:
Thu Sep 03, 2020 6:07 pm
in my limited experience, those monopoles seem rather low...Ross
Do you mean the ones for the 05 Walnut weak sounding guitar or in general across all three please?
by TallDad71
Thu Sep 03, 2020 3:43 am
Forum: Instrument Builders Forum
Topic: Soundboard Sonic Signature
Replies: 17
Views: 232112

Re: Soundboard Sonic Signature

lamanoditrento wrote:
Wed Sep 02, 2020 11:37 pm
Do you know what the bridge rotation is for each?
They’re each around 2° The structural build, the stiffness of the x braces forwards of the bridge are all very similar. I wouldn’t have expected them to vary wildly anyways.
by TallDad71
Wed Sep 02, 2020 6:19 am
Forum: Instrument Builders Forum
Topic: Tone Bars
Replies: 0
Views: 4963

Tone Bars

There is very little discussion about the use and importance of tone bars in a Steel String X-Brace system. All I read is that they are important and useful, that people make them in all sorts of angles, sizes and shapes. Somogyi states that the X-Brace design primarily seeks to curtail Cross Dipole...
by TallDad71
Tue Sep 01, 2020 11:20 pm
Forum: Instrument Builders Forum
Topic: Soundboard Sonic Signature
Replies: 17
Views: 232112

Re: Soundboard Sonic Signature

Would you mind listing the T,1 T,2 frequencies please. It might be good on this forum to have a standard for X and Y axis when posting Visual Analyser type images...I usually copy the graph, then use 'paint' to insert text above the peaks so that there is an immediate frequency read for every peak ...
by TallDad71
Tue Sep 01, 2020 6:30 pm
Forum: Instrument Builders Forum
Topic: Soundboard Sonic Signature
Replies: 17
Views: 232112

Re: Soundboard Sonic Signature

I expect you are right Martin
My Chladni experiments got interrupted by a garden party next door who were unhappy with my choice of music in the workshop, symphony in 453Hz! 🤣

Hopefully get a crack on investigating further this week.
by TallDad71
Tue Sep 01, 2020 5:43 pm
Forum: Instrument Builders Forum
Topic: Soundboard Sonic Signature
Replies: 17
Views: 232112

Soundboard Sonic Signature

Like many on this forum I have built beautiful instruments that sound amazing. Like many in this group I have spent months on a guitar and wonder in sadness why it sounds like a shop bought guitar or worse. Attached is the sonic signature of 3 guitars all the same model but different woods, large bo...
by TallDad71
Thu Aug 27, 2020 11:42 pm
Forum: Instrument Builders Forum
Topic: StewMax Membership and Free Shipping
Replies: 11
Views: 14317

Re: StewMax Membership and Free Shipping

Excellent find, thanks very much for posting this Dave. Four happy shopping months left. Sad shopping months to follow thereafter.
by TallDad71
Thu Aug 27, 2020 11:00 pm
Forum: Instrument Builders Forum
Topic: Saddle position
Replies: 31
Views: 25275

Re: Saddle position

I'd be highly tempted to plug all 6 holes with hardwood. Shim off a good 3mm from the top of the entire bridge and laminate a new 3mm thick panel on it. Then rout out your saddle slot, then put in your peg holes. As they say 'cover up your mess ups.'
by TallDad71
Sun May 17, 2020 7:40 am
Forum: Instrument Builders Forum
Topic: Double V Neck Acoustic
Replies: 23
Views: 32429

Re: Double V Neck Acoustic

Great work, truly good stuff.

I can’t wait to hear a review of how it sounds. I’m a little puzzled by the joining of the two soundboards along that straight line and how they might vibrate as a single plate.
by TallDad71
Thu May 14, 2020 4:40 pm
Forum: Instrument Builders Forum
Topic: Nozzle Size HVLP
Replies: 9
Views: 15465

Re: Nozzle Size HVLP

The Fuji 1mm nozzle is much more suited to acoustic guitars. Saying that I use waterborne lacquer.
by TallDad71
Tue May 12, 2020 11:00 pm
Forum: Instrument Builders Forum
Topic: Help reading flamenco tap tone data
Replies: 12
Views: 21678

Re: Help reading flamenco tap tone data

Excellent. The other ancillary benefit is that it is also a tone generator. You can plug it into your guitar amp and set it to your desired Hz level and blast away, perfect for Chladni patterns.
by TallDad71
Tue May 12, 2020 4:59 am
Forum: Instrument Builders Forum
Topic: Help reading flamenco tap tone data
Replies: 12
Views: 21678

Re: Help reading flamenco tap tone data

Cant help with frequencies I'm afraid but recording buzz free is easy.

FFT from the app store.

https://apps.apple.com/us/app/fft/id298840058

There's a google Play version too.

It generates lovely graphs, allows you to store them and crucially allows you to take average reading over multiple taps.
by TallDad71
Tue Nov 19, 2019 4:15 am
Forum: Instrument Builders Forum
Topic: packaging tape for binding
Replies: 12
Views: 13703

Re: packaging tape for binding

3M 8981 Filament tape works a treat, tacky enough and strong to pull binding into the work on both faces.
by TallDad71
Fri Nov 15, 2019 2:09 am
Forum: Instrument Builders Forum
Topic: fretboard radiusing router bits
Replies: 18
Views: 22660

Re: fretboard radiusing router bits

I’ve built all manner of radius sanding blocks with depth stops. I HATE IT. It’s the only part of luthierie I don’t look forward to. Just dropped £90 on a custom set Spindle Mould cutters to get a run of 10 fretboards radiused and built a jig on a table saw to cut frets slots. I’m very much hoping t...
by TallDad71
Thu Nov 14, 2019 1:52 am
Forum: Instrument Builders Forum
Topic: Bending Sides issue
Replies: 17
Views: 28334

Re: Bending Sides issue

Wood is a sponge where moisture is concerned. Soaking it will change the all 3 dimensions, especially the thickness in ways that cannot be controlled. Like all luthiers i have tried many different ways of bending sides, the best has always been a heating iron and water sprayer when needed. This is a...
by TallDad71
Mon Nov 04, 2019 10:45 pm
Forum: Instrument Builders Forum
Topic: Hacked
Replies: 6
Views: 8451

Re: Hacked

There are literally thousands of websites that run on the same name servers as yours Peter, ns-1.ezyreg.com. https://securitytrails.com/list/ns/ns-1.ezyreg.com I guess they have locked yours down to protect the integrity of the other websites that sit on the same hard drives whilst they investigate ...
by TallDad71
Wed Aug 28, 2019 5:42 am
Forum: Instrument Builders Forum
Topic: Radius dishes
Replies: 6
Views: 7875

Re: Radius dishes

I have a file I created in vCarve Pro that has the drawings and cuts for radius dishes 3,5,7 and 9m.

If you can find someone with a CNC it might quicken their response!
by TallDad71
Fri Aug 23, 2019 9:22 pm
Forum: Instrument Builders Forum
Topic: Semihollow fifteen inch
Replies: 21
Views: 25711

Re: Semihollow fifteen inch

Looks brilliant. What are you planning to do about the access hatch for installing the pots? On my last build I was desperate not to interfere with the beautiful grain on the back, despite my best efforts I still wasn't too pleased with the result. The panel was cut out but needed a lot of binding t...
by TallDad71
Wed Aug 21, 2019 6:21 pm
Forum: Instrument Builders Forum
Topic: New toy
Replies: 4
Views: 5560

Re: New toy

Agree.

You’re going to kick yourself that you didn’t get one earlier.

Shaping bodies, bridges, pegheads, braces, jigs, moulds and a whole host more will never have been so easy.

Enjoy
by TallDad71
Fri Jul 26, 2019 5:42 pm
Forum: Instrument Builders Forum
Topic: Hollowbody electric
Replies: 25
Views: 27347

Re: Hollowbody electric

Thanks for that. Of course you are right, the pup matches that stunning black blue finish perfectly. I built a Gibson 356 type guitar with flamed maple recently. As soon as I put a plastic pup on, the guitar screamed out in horror at the mismatch in both colour and material, so I had to make two fro...
by TallDad71
Thu Jul 25, 2019 7:24 pm
Forum: Instrument Builders Forum
Topic: Hollowbody electric
Replies: 25
Views: 27347

Re: Hollowbody electric

This is stunning work, very in keeping with what we expect to see on this forum. And it sounds absolutely lush. Well done. I have two questions if you don't mind about the design. Why did you use plastic pickup holders, why didn't you use the Blackwood for them instead? The necks on archtop guitars ...
by TallDad71
Thu Jul 11, 2019 2:38 am
Forum: Instrument Builders Forum
Topic: Indian Rosewood Sanding issue
Replies: 11
Views: 11415

Re: Indian Rosewood Sanding issue

Are you using the sander to thickness or finish. If you’re taking of 1mm+ then course grain (80 or less), run at an angle 30° both ways, for all woods not just oily ones. Rosewood and cocobolo are particularly difficult to thickness come what may. Be careful with the drum sander that you don’t get r...
by TallDad71
Tue Jul 02, 2019 1:39 am
Forum: Instrument Builders Forum
Topic: StewMax Membership and Free Shipping
Replies: 11
Views: 14317

Re: StewMax Membership and Free Shipping

For us in the UK the issue isn’t shipping costs it import taxes. Customs duty gets applied to the value of the goods 12%, then Value Added Tax 20% gets added to the value of everything including delivery and customs charges. Typically items cost 30-40% more than the price paid on the site. I go to m...