The geometry of sharpening

mardi 8 juillet 2014

I have made a jig based on several examples to be found on the internet with the intention of getting a fingernail grind on my spindle gouges and an Elsworth grind on my bowl gouges.



I am trying to figure out the geometry to get the required grind using my belt sander.



I thought I had it licked, but not so.



I can get a really good edge BUT the geometry is all wrong and I am a bit puzzled as to what is happening and why.



Is there anyone who can help me out with this?? Pretty Please???




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