Hand Tools Archive

Subject:
The world is upside down :)

Derek Cohen (in Perth, Australia)
Let me see if I have this correct, because the promise of doing it right brings a rueful smile to my face.

David, you have created a micro rounded bevel by presenting the chisel (and plane blade, no doubt) to a softer wheel, one that acts to buff rather than grind. In so doing, it dubs the bevel and gives it a rounded upper edge (it cannot be rounded completely as then it would end up dull).

If this is so, the other way to achieve this is via stropping on leather (with some give). For some years I had moved to stropping on hardwood (using green compound), which is technically not stropping but sharpening. The hardwood is just another "stone". However, the hardwood was chosen to prevent the possibility of dubbing - rounding over the edge.

Years ago I used horse butt leather for strops, and I still have these round. Now I need to return to them for a comparison of edge holding. They should be the quick and easier way to the micro rounding. Yes? No?

The other issue is what this rounding is actually doing? One thing appears obvious to me (but I may be misunderstanding all this in the first place), is that the rounding increases the angle at the edge. To be effective, a higher cutting angle does not require size, just a higher angle. Another example of this may be the leading edge of a chipbreaker ... just enough angle to re-direct the chip.

The last issue is how this compares with the rounded bevels popularised by Paul Sellers? His bevel are wider/longer (however you wish to define them), but they may be doing the same thing - increasing the cutting angle somewhat (which has been a criticism by many of us of his sharpening method). While I have not been a support of PS's sharpening methods generally, I have used the rounded bevel on my Western mortice chisels (not on Japanese edges) and also when sharpening tiny marking knife bevels.

Regards from Perth

Derek

Messages In This Thread

Weaver chisel grind *PIC*
Some quick tests (lots of pictures) *PIC*
Some chisel pictures *PIC*
Re: Some chisel pictures
Re: Some chisel pictures *PIC*
astonished by picture quality *NM*
excellent pictures!
Another test *PIC*
Re: Another test
question
Re: question *PIC*
Re: question
could be a database issue...
Second try for picture *PIC*
yellow pine *NM*
Those pictures..
Nice piece of work
Re: Nice piece of work
Light source?
Re: Light source?
stitches.....
I've made a video.....
video...not for the meek...
It's a very funny video
comments on the two pictures.....
bevel width
It's the scale that escapes me
Re: It's the scale that escapes me
Looking forward to it, thanks! *NM*
More on the Weaver Bevel
Re: More on the Weaver Bevel
the premise is different in this case
I don't agree with limitation of your premise
You nailed it
This is hilarious
Jim - here's your guy
Well that escalated quickly.
Moving the needle
Re: Moving the needle *LINK*
Thanks for the memories *PIC*
Absolutely *LINK*
Positioning *LINK*
Where to find unhndled Narex chisels? *NM*
Taylor Tool Works
narex and their hardening....
how I achieved the Weaver Bever
Weaver Bevel
Further defining the Weaver Bevel
perception of penetration?
solving a problem, not creating one...
Re: solving a problem, not creating one...
BTW
rolling over edges....
On secrets, incantations and open source
Weaver grind—how is convexity added?
Marc Adams
Could've been felt...
Re: Weaver grind—how is convexity added?
The world is upside down :)
I took a nine day Sellers course
Re: I took a nine day Sellers course
it makes sense
How about making a video?
Period costume?
Re: How about making a video?
Trying things out
Re: Trying things out
Re: Trying things out
failed to figure things out...
Re: How about making a video?
Re: How about making a video?
variations on the already done...
thoughts *PIC*
Re: Weaver grind—how is convexity added?
Re: Weaver chisel grind
making peculiar names
© 1998 - 2017 by Ellis Walentine. All rights reserved.
No parts of this web site may be reproduced in any form or by
any means without the written permission of the publisher.

WOODCENTRAL, P.O. BOX 493, SPRINGTOWN, PA 18081