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Sorby fingernail jig question. (Read 214 times)
 
Ralph Laughton
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Sorby fingernail jig question.
Feb 26th, 2018 at 6:43am
 
I have a Sorby 455 fingernail jig and in the instructions, it says to set the protrusion of the tool to 2 inches and that will give a grinding angle of 45º. I know that varying the length of the protrusion will change the angle, in fact they do a gauge with stepped stops to give a selection of different angles but not the lengths required to achieve this.

Other than trial and error, is there a way of calculating the length of protrusion to give a particular angle of grind using this jig?

Ralph.
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Ed Weber
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Re: Sorby fingernail jig question.
Reply #1 - Feb 26th, 2018 at 10:29am
 
You know that 2" = 45 degrees
I would suggest changing the protrusion a set amount like 1/4" and find that angle. Once this is done, you would know that change of 1/4" = XX degrees. You can then extrapolate as to what the other angles would be.
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David Hamann
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Re: Sorby fingernail jig question.
Reply #2 - Feb 26th, 2018 at 1:09pm
 
This Topic was moved here from Turning Talk by David Hamann.
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