The Hub
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Marketing Club: The Miracle of ManyChat
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Acoustic Guitar Builders Club: Brace Yourself
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3D Club: Node Atlas with Brett Bailey
feedback on Les Paul Headstock repair
Celluloid Chronicles Ep. 2 - Chet Atkins Nashville
Finish Chip Repair help.... Black fill n' finish?
Bridge Reglue Suggestions...
Magician Performs Guitar Pick Card Magic Trick | Penn & Teller: Fool Us
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Electric Guitar Builders Club: Frank Brothers Guitar Company
Anyone know where I can find a Thumbwheel tone control assembly like this?
Sterling Maj200xsm - Tunning issues
bozo B80/12 neck block clownery
Dude Built A Rotary Speaker
New Feature - Connect Automatically
D28 blowout
Tonewood for sale northeastern Nevada
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3D Club: Strings Micro Factory with Brad Combs
Deflection vs. Frequency for measuring flexural modulus
I've been testing all my top and bracewood to find the best combination of stiffness and density, optimize plate thickness, etc. I started with Nicoletti's spreadsheet which calculates both stiffness and density, but since I was also testing deflection, I decided to compare the flexural modulus using that method (with the formula from T. Gore's book) on the same plates and bracewood.
Unfortunately, I'm having trouble getting a satisfactory correlation between the two methods. Here's a plot comparing the longitudinal stiffness calculations using the 2 methods on 8 sonically tested tops from PRT. Since they don't agree very well, I'm left with the dilemma of deciding which calculation to use to determine top thickness.
Am I overlooking something? Has anyone else done a similar comparison with better results?

