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Video: Measuring Long, Cross, and Transverse Modes + Thickness Calculator
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Video: Measuring Long, Cross, and Transverse Modes + Thickness Calculator
Hey folks,
I put together a video showing how I measure the long, cross, and transverse frequencies on guitar top plates before thicknessing, following the Gore method. I also walk through using the calculator I built (based on Trevor Gore’s equations) to get target thickness and track density / young’s modulus.
Fair warning: the video’s a bit YouTube-y in tone thumbnail faces, a little energy for the algorithm, but the content is genuinely intended to be helpful. I’ve had several students and even talked to experienced builders struggle with misreading the transverse mode, so I tried to be extra clear on that point.
Here’s also links to the free, web based FFT tool and calculator on my site if anyone wants to try them out:
Here’s the video:<br data-start=”1259″ data-end=”1262″>https://youtu.be/EnVlS-uZ430
FFT tool for measureing frequency response (REW still works great too):
Target thickness calculator:
https://www.celestialinstruments.com/blogs/calculators/thickness-calculator
Hope it’s useful to someone and I would love any feedback, corrections or improvements.
Best,
Rick
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3 Replies
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That was awesome! I do have Trevor’s books. Got about 2/3rds through the first one and my brain was scrambled with #’s but it’s an incredible reference.
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It really is a great reference and yeah, working through the math is a thing. I have an engineering and math background, and it still took very real time to get through it. I do hope that this video and the calculators that I put up Help make it more accessible though to folks.
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Rick, this is amazing! Thank you so much for creating it and sharing it. I have Trevor’s books but having a calculator to run the equations is really fantastic.
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