#46
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>> I calculated .001", but because of these "dumbphones," I apparently missed a zero.
OK, good to know our calculations agree. Changing only the fretboard radius has a surprisingly small effect on the hump that the outer strings see, even with as low as a 5" radius. |
#47
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Quote:
It only takes a relatively small change to effect zero "hump" with a compound radius. For 10" nut radius, it takes only about 13.3" radius at the 22nd fret (on a 25.5" scale) to effect zero "hump;" this happens to be the only conical section that produces flat string lines. Even 10"-12" creates a .0001" "hump," effectively negligible. Interestingly, changing the 22nd fret radius "higher" than the theoretical "conical" section moves the hump slightly toward the nut, while picking a radius below the theoretical "conical" section moves the hump away. This shouldn't be too hard to visuialize, as the larger end radius would imply a more squat "cone" than the splay of the string implies. |
#48
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Don't you have to take the width of the board both at the nut and the 22nd fret into consideration ?
EDIT: sorry Louie, I see you did ... |
#49
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While I did think of the board width, usually the strings are a fixed distance from the fretboard edge throughout its length, somewhere around 3/32"-1/8". That is why I only consider the area between the outside strings' centers. I would argue, however, that the difference is so negligible it would be measured in microns!
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