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" The Tool"
I have made my Proportional Dividers from two flat beech sticks ( for stirring paint ) .1" wide x 3/16" thick x 12" long. Total length, including the iron nails, is 13".
7 different positions for the axis, to measure from 1" : 1 3/16" to 1" : 3 1/2"
Hole NR. 4 measures 1" : 2" and it will reach 15" with the long legs.
Allan
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