Folks, I have been using a grinder and white aluminum oxide stone to
hollow grind my chisels, then taking them to a couple of Japanese
waterstones to finish honing them. I have been removing the hollow
grind when using the waterstones, but it is an awful lot of work and I
am wondering if I need to. What is your opinion? Should I just grind
them to the approximate shape (until I get a good burr on the back
edge), then just hone them slightly on the rougher of the two
waterstones, then changing the angle a bit and giving them a microbevel
on the finer of the two Japanese stones? Thanks so much in advance for
your help, Richard
Zz Yzx wrote:
> You don't need to grind the hollow off the bevel. Just get a flat
> surface (approx. 3/32") (guys?) along the cutting edge. That surface
> should have a mirror image along the back side of the bevel, leaving
> the hollow in between.
Right!
The advantage to teh hollow grind is that only a small bit of metal
needs to be removed when touching them up. Grinding away
the hollow defeats the advantage of hollow grinding.
--
FF
In article <[email protected]>,
Richard <[email protected]> wrote:
> Should I just grind
> them to the approximate shape (until I get a good burr on the back
> edge), then just hone them slightly on the rougher of the two
> waterstones, then changing the angle a bit and giving them a microbevel
> on the finer of the two Japanese stones?
Once the blades are shaped properly, using the grinder should be a rare
event if you keep them sharp ont he waterstones.
--
Do the right thing. It will gratify some people and astonish the rest.
- Mark Twain.
You don't need to grind the hollow off the bevel. Just get a flat
surface (approx. 3/32") (guys?) along the cutting edge. That surface
should have a mirror image along the back side of the bevel, leaving
the hollow in between.
-Zz
On 19 Feb 2006 17:11:30 -0800, "Richard" <[email protected]> wrote:
>Folks, I have been using a grinder and white aluminum oxide stone to
>hollow grind my chisels, then taking them to a couple of Japanese
>waterstones to finish honing them. I have been removing the hollow
>grind when using the waterstones, but it is an awful lot of work and I
>am wondering if I need to. What is your opinion? Should I just grind
>them to the approximate shape (until I get a good burr on the back
>edge), then just hone them slightly on the rougher of the two
>waterstones, then changing the angle a bit and giving them a microbevel
>on the finer of the two Japanese stones? Thanks so much in advance for
>your help, Richard
On Sun, 19 Feb 2006 17:44:26 -0800, Zz Yzx <[email protected]>
wrote:
>You don't need to grind the hollow off the bevel. Just get a flat
>surface (approx. 3/32") (guys?) along the cutting edge. That surface
>should have a mirror image along the back side of the bevel, leaving
>the hollow in between.
>
That's the way I was taught, and it's worked well for me.
Remember to frequently touch up on 4000 & 8000 stones during use, and
you'll rarely have to reshape the edge.
Barry
Good advice below. Also, there should be no need to grind them often. Once
the bevel is established, maintenance shouldn't require anything more than
the stones.
"Zz Yzx" <[email protected]> wrote in message
news:[email protected]...
> You don't need to grind the hollow off the bevel. Just get a flat
> surface (approx. 3/32") (guys?) along the cutting edge. That surface
> should have a mirror image along the back side of the bevel, leaving
> the hollow in between.