Info request: An Axe to Grind manual

Fmont

Fmont

Joined
Apr 20, 2017
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Hello good fellows,

I usually eyeball my bit geometry to about 20 degrees. But as I become more anal about my bit geometry I would like to create a gauge as sketched in OA's manual.

As mentioned it should be the true to size if printed/copied one to one as it appeared.. in the manual. That sketch is of an ideal convex edge, which is not a linear 20° and curvature is much more complicated. If it is not the same size as the one in the book and you use as a gauge you will have a different edge profile than recommended. I know it's not rocket science and I am overthinking it, but I would like to have the best gauge possible if I'm going to bother to make one.

That said, I need only one simple thing: if somebody who has a known 1:1 print or gauge of said sketch could measure the width of the opening (distal from edge) can you post that?

With that info anyone can scale and verify that out of their printer it will be correct in size. I've dealt with enough of this kind of issue to know that between scanning and software preferences and printer margins, etc., just printing it off a PDF is not enough to assure that it will come out the correct size, i.e the size in the printed manual.

Thanks!
 
Fmont said:
Hello good fellows,

I usually eyeball my bit geometry to about 20 degrees. But as I become more anal about my bit geometry I would like to create a gauge as sketched in OA's manual.

As mentioned it should be the true to size if printed/copied one to one as it appeared.. in the manual. That sketch is of an ideal convex edge, which is not a linear 20° and curvature is much more complicated. If it is not the same size as the one in the book and you use as a gauge you will have a different edge profile than recommended. I know it's not rocket science and I am overthinking it, but I would like to have the best gauge possible if I'm going to bother to make one.

That said, I need only one simple thing: if somebody who has a known 1:1 print or gauge of said sketch could measure the width of the opening (distal from edge) can you post that?

With that info anyone can scale and verify that out of their printer it will be correct in size. I've dealt with enough of this kind of issue to know that between scanning and software preferences and printer margins, etc., just printing it off a PDF is not enough to assure that it will come out the correct size, i.e the size in the printed manual.

Thanks!
Click to expand...
There are lots of inexpensive gauges available that’ll work better than paper.

https://www.sharpeningsupplies.com/Bevel-Gauge-P9.aspx
 
Yes I have a couple edge gauges, but I'm not looking for a linear 20 degree v grind. I'm trying to make a gauge of the ideal edge (convex) as illustrated by a true pro in the aforementioned manual.

It's not a big deal, but if it was sketched with the upper opening at 3/8" or whatever it is I can make one true to the original with aspect locked scaling.
 
Yeah, I'm never the type to be called anal about anything. But I figure that much experience in a little sketch is something worth trying out.
 
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