Stuart Batty's 40/40 grind on a ProEdge (re-make)  

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Modifying A Robert-Sorby ProEdge to achieve a 40/40 grind
Very simple modification the angle settings have 20 and 30 degrees on the inner circle and 35 and 45 on the outer. I simply drilled and 8mm hole below the 30 degree setting at 40 degrees, which I could find by measuring, but I have an angle finder I use for my saw blade so I used that to find the angle half way between 35 and 45 degrees, marked it up and and drilled the backplate.
DO NOT drill through the table arm, this is threaded and must not be damaged!
Obviously this is not an authorised modification and will probably invalidate guarantees, so wait till they have expired!
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