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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 satisfa…

Hi everyone, in the loothalong I shared this spreadsheet I put together a few years ago, based on D'ADDARIO phosphor bronze strings data, and Elixirs' as well. There are a few different tables for standard 6 strings, fanfrets, harp guitars, baritone and 12 strings. You choose the relevant table, input the scale length, string gauges and tuning, the spreadsheet will give you individual string and total tension in lb and kg. For the fanfret…

@member @member I have a question for you. I'm starting to measure spruce for a couple of classical guitars I'm going to make. I used structured sides (I'm calling them cored) on one of my last guitars and it came out notably great. I accidentally thinned the top more than I might have and it seemed to work very well. My thought is that the sides are so stiff that it's allowing the top to survive structurally even…