Search found 546 matches
- Sat Apr 20, 2024 3:42 am
- Forum: Instrument Builders Forum
- Topic: What is "Hand Made"
- Replies: 82
- Views: 71451
Re: What is "Hand Made"
I understand the issue. That is why I cut and split the trees I need to make my instruments. It took me awhile before I was able to master resawing the billets with my hand made saw. I feel bad that I am not able to make my own steel and do rely on steel stock. But I am comfortable still calling my ...
- Mon Mar 25, 2024 2:28 am
- Forum: Instrument Builders Forum
- Topic: Bridge routing - crisis and opportunity
- Replies: 3
- Views: 3376
Re: Bridge routing - crisis and opportunity
I cannot see the fix. Along the grain I generally use super glue to glue in patch, finishing with rerouting the slot. I have lots of practice fixing these types of issues.
- Tue Mar 19, 2024 2:09 am
- Forum: Instrument Builders Forum
- Topic: Carbon Fibre Threads
- Replies: 5
- Views: 2371
Re: Carbon Fibre Threads
Just looking at your numbers, and I think you get this, Looking at the addition of mass replacing 1g of wood, in my experiment above, with 1g of Carbon Fibre / Epoxy is a red herring, rather look at the deflection 27 to 20. a giant change in the deflection thus stiffness using a material that does n...
- Sun Feb 25, 2024 6:40 am
- Forum: Instrument Builders Forum
- Topic: Modal Tuning with Trevor Gore Question
- Replies: 2
- Views: 3856
Re: Modal Tuning with Trevor Gore Question
I took Trevor's model tuning class after reading The Book and incorporating much of what I had learned into my build process. I also at the time I took the class had built a lot of guitars with the processes I developed after reading The Book. I found the class very rewarding. It was well structured...
- Fri Dec 08, 2023 12:50 am
- Forum: Instrument Builders Forum
- Topic: Cross grain classical soundboard bracing
- Replies: 3
- Views: 7166
Re: Cross grain classical soundboard bracing
I found that the bridge itself is a very stiff cross grain brace of the lower bout in a classical guitar. My classical guitars are falcate braced without a lower transverse brace. I get a 10 Hz rise in the top resonance frequency when I glue on the bridge. I get a drop on my X braced steel string gu...
- Sat Sep 23, 2023 4:49 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Nodes and anti-nodes
- Replies: 7
- Views: 28182
Re: Nodes and anti-nodes
You need the microwave amplifier for your Chladni patterns.Barry Daniels wrote: ↑Sat Sep 23, 2023 3:22 amI put a layer of cheese on my current build but it did not tell me anything. What did I do wrong?
- Fri Aug 25, 2023 12:04 am
- Forum: Instrument Builders Forum
- Topic: Installation of the LR Baggs Hi Fi and Lyric Microphone Custom Blend System on new Guitar Build
- Replies: 9
- Views: 40156
Re: Installation of the LR Baggs Hi Fi and Lyric Microphone Custom Blend System on new Guitar Build
Very informative post! Thanks
- Sat Jul 29, 2023 8:22 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Nodes and anti-nodes
- Replies: 7
- Views: 28182
Re: Nodes and anti-nodes
sounds right to me nodes are points of no displacement vs antinodes where the most displacement is.
- Mon Jul 17, 2023 12:29 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Testing Pacific Rim Tonewoods sonic graded tops
- Replies: 2
- Views: 10561
Testing Pacific Rim Tonewoods sonic graded tops
I am starting a new classical guitar. At the Guild of American Luthier convention I bought some Pacific Rim Tonewoods sonic graded tops with the Density and young modulus and Q provided. How well do they match up? Actually pretty well: Density 422 kg/m3 vs 411 and elong of 13.67 GPa vs 13.8 GPa. Whe...
- Sat Jul 15, 2023 7:48 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: neoclassical falcate braced guitar as per t gore
- Replies: 1
- Views: 9766
Re: neoclassical falcate braced guitar as per t gore
I have made a handful of falcate classical guitars. Never as large as a Dreadnought. First question I would have is will you have a lower transverse brace? I do not. If you do not have a lower transverse brace and you have a thinner classical top than your steel strings the falcate braces should be ...
- Wed Jul 05, 2023 9:48 am
- Forum: Instrument Builders Forum
- Topic: Trouble Build
- Replies: 20
- Views: 157116
Re: Trouble Build
Those are fairly nasty looking VA plots, Martin. Lots of background noise or something else going on? I'm running mic output into laptop via a preamp....might have something to do with the background noise. Ive also got smoothing turned off. Guitar was lying on its side with neck on a neck rest so ...
- Tue Jul 04, 2023 12:27 pm
- Forum: Instrument Builders Forum
- Topic: Trouble Build
- Replies: 20
- Views: 157116
Re: Trouble Build
Just throwing mud against the wall ... I build both slot head classical guitars and guitars with peg tuners. The headstock angle on my slot heads are 9-10° but I use 15° on the guitars that I use pegs to tune as they terminate the string higher. Headstock/neck angle is 15degrees. Strings leave the ...
- Tue Jul 04, 2023 11:15 am
- Forum: Instrument Builders Forum
- Topic: Trouble Build
- Replies: 20
- Views: 157116
Re: Trouble Build
Just throwing mud against the wall ... I build both slot head classical guitars and guitars with peg tuners. The headstock angle on my slot heads are 9-10° but I use 15° on the guitars that I use pegs to tune as they terminate the string higher.
- Tue Jul 04, 2023 2:18 am
- Forum: Instrument Builders Forum
- Topic: Trouble Build
- Replies: 20
- Views: 157116
Re: Trouble Build
Weird, did you check for loose components on the tuning machine? I assume you checked the nut as well? I sometimes temporarily lift the strings with tape at the nut to see if the sound goes away.
- Fri Aug 19, 2022 1:51 pm
- Forum: Instrument Builders Forum
- Topic: X Bracing planning
- Replies: 6
- Views: 5772
Re: X Bracing planning
I decide how close I want the X to the sound hole and then I make sure I clip the wings of the bridge. Extending the the lines place the ends of the braces.
- Sun Jul 24, 2022 11:29 pm
- Forum: Instrument Builders Forum
- Topic: Elvis has entered the building
- Replies: 9
- Views: 10960
- Mon Mar 28, 2022 2:25 pm
- Forum: Instrument Builders Forum
- Topic: new classical with spectrum
- Replies: 8
- Views: 7837
Re: new classical with spectrum
Very nice guitar! I really like the guitars I made pitched around 190 Hz for the top. I love how the headstock joint worked out.
- Wed Feb 02, 2022 10:45 am
- Forum: Instrument Builders Forum
- Topic: Elmer Guitar
- Replies: 10
- Views: 16383
Re: Elmer Guitar
I see the prices but it does bother me that they are knockoffs of stewmac products as opposed to functional equivalent products. Maybe they are OK quality, China has very good manufacturing but if not held to a testable specification the quality of the materials and fit and finish goes down.
- Wed Jan 26, 2022 3:45 am
- Forum: Instrument Builders Forum
- Topic: This will wind a few up….
- Replies: 7
- Views: 8167
Re: This will wind a few up….
I made the mistake making a comment once on electric guitars on a different forum, never again just not worth it. My comments only involved the the sound difference between a EIR fretboard vs ebony.
- Thu Nov 18, 2021 4:22 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Air, Top and Back Resonances, Coupled and Uncoupled - Untensioned?
- Replies: 17
- Views: 82854
Re: Air, Top and Back Resonances, Coupled and Uncoupled - Untensioned?
Stiffness does not change with load. Stiffness is a constant. Deflection changes with load. Are we sure on that? Yes, load first causes deflection, which changes the location of the neutral axis in a beam (towards the fibers under compression), which I think we can presume happens with the soundboa...
- Wed Nov 17, 2021 11:57 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Air, Top and Back Resonances, Coupled and Uncoupled - Untensioned?
- Replies: 17
- Views: 82854
Re: Air, Top and Back Resonances, Coupled and Uncoupled - Untensioned?
... I do check the resonances before I finish and glue on the bridge. This lets me know that I am in the range. At that point the only remediation I would do is thin the edges of the top if I think the resonances are too high. Hi John Thanks for your thoughts. Do you find the initial untensioned to...
- Wed Nov 17, 2021 2:45 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Air, Top and Back Resonances, Coupled and Uncoupled - Untensioned?
- Replies: 17
- Views: 82854
Re: Air, Top and Back Resonances, Coupled and Uncoupled - Untensioned?
On a closed and bound guitar I have tried taping on the bridge and just adding mass with Blue tac neither really told me much. The bridge is also a brace stiffening the top; that is lost with taping and just adding mass. On repeat guitars I am consistent enough that I have a pretty good knowledge ab...
- Thu Nov 11, 2021 2:27 pm
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Target Plate Thickness for 0/Parlor Guitars
- Replies: 7
- Views: 20571
Re: Target Plate Thickness for 0/Parlor Guitars
The smallest I have gone is falcate braces on a 00 body. In terms of the calculated thickness, I suspect there is a minimum thickness required for falcate or x braced guitar for the structural requirements. I retopped (a dropped) lattice braced guitar with a top around 1 mm. The lattice distributed ...
- Sat Oct 30, 2021 2:36 pm
- Forum: Instrument Builders Forum
- Topic: Neck Taper
- Replies: 16
- Views: 43413
Re: Neck Taper
I use a safe-t planer on a pillar drill. I get the taper by calculating A nut side shim the I attach to the finger board side of the neck. The Book shows using a Safe-T plane as well but the neck fits into a jig with the correct taper. I just did this for a concert ukulele I shim up the nut side of ...
- Mon Oct 25, 2021 8:51 am
- Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
- Topic: Tuning Components Off Note or On?
- Replies: 5
- Views: 15855
Re: Tuning Components Off Note or On?
I agree, I read Rodger Siminoff book at it made little sense to me. He advocated individually tuning each brace to specific notes. I could not understand how those tones meant anything once the brace is glued down. I got a DVD in my book and he contradicted half of what he said in the book. I am sur...