Experimenting with the Grimsdale method

[sdbranam]

Ok, I've read the back-and-forth here on sharpening techniques, so at the risk of igniting a flame war , here's a 2-part blog post on giving Mr. Grimsdale's method a try, including a video at the end of part 2.

http://www.closegrain.com/2010/04/grimsdale-method.html

I offer this in the spirit of learning and expanding my skills. Now I'll duck and cover!
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Steve, primarily hand tools. Visit my blog at http://www.CloseGrain.com.

[Jake]

OMG you so BANNED.

[Shrubby]

Steve
He's not the Messiah,He's a very naughty boy !

[MickCheese]

I liked the video, very informative.

Mick
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It's better to be a little late in this life than early into the next.

[bugbear]

[SBJ]

SDBranam - Nice articles, though you may want to post them on wwuk as it seams that Jacob isn't able to post here any longer and I'm sure he would apprectiate seeing it.


I would be interested to hear what your thoughts are after using the system for a while.



BugBear- I think it always has been, it's not the angles that are different, it's the technique to achieve them. Unfortunately, some people have been more interested in rubbishing Jacob than listening to him.
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rgds

Stuart

[Paul Chapman]

Hi Steve,

I watched your video. I was surprised that you use the strop in your hand rather than on a flat surface. Using it the way you do would surely tend to dull the edge

Cheers

Paul

[sdbranam]

SBJ, thanks for the reminder, I've cross-posted.

Paul, I based stropping on a hand-held piece of leather on the video here: http://furnituremakersapprentice.net/sharpening.html. And anecdotally, the old timers supposedly used to strop on their calloused palms, though I'm not sure how reliable that information is!

However, this article http://antiquetools.com/sharp/sharpstropping.html at Tools For Working Wood/Woodworking Museum clearly shows stropping on the flat.

I'm interested in hearing opinions on the details of either method. These are the two best demonstrations and descriptions I've seen of stropping (most books and articles just say "strop the edge"), and of course, they are completely opposite in approach!
_________________
Steve, primarily hand tools. Visit my blog at http://www.CloseGrain.com.

[ByronBlack]

Steve, good write up, this is very similar to a method taught to me by Bruce Luckhurst, but we didn't make a consertive effort in making the convex round over, instead we held the iron at the desired angle and rocked back and fourth maintaining the angle, this produced excellent results. I'm not sure I understand the benefit of the convexing aspect, and I fear for the tips of your fingers with the speed you go at! but I really enjoyed the video.

Out of interest, why the change from diamond stones to oil stones? Wouldn't grims method work equally well on the dmt's?

[sdbranam]

Byron, my interpretation is that it's not so much a matter of specifically trying to get a convex bevel, it's more a matter of not obsessing so much over a flat bevel. Don't need laser-guided GPS-enabled jigs. Just let it fly. The convex bevel is then the logical consequence. Rather than fearing the curve, embrace it.

The one definite issue with a flat bevel is that it has to be repeatable. Once you've carefully gotten a 30 degree bevel on there, if the next time you hone it you only get to 29.9, you may not actually be resharpening it. Or you end up having to take off a lot more metal. That was definitely one of my complaints with using a jig. I found all that fussing about annoying and unnecessarily time-consuming. I wanted to get back to working the wood.

And I'm sure blood is an effective honing medium (I am up to date on my tetanus shot).

This method did indeed work equally well on DMTs. I have a couple of reasons for not using them.

One is that I'm trying to get my hand tool skills down to bare essentials. My particular obsession is to be able to work the way someone in the 1800's did; I admire that versatility and self-reliance. As a hobbyist I'm clearly romanticizing that aspect a bit, because some of these tasks done hour after hour, day after day would be crippling labor. Hand-ripping a rough 8' plank is fun; hand-ripping 1000 of them will kill you. But the India stones appeal more to my desire for traditional methods than the DMTs. Norton probably uses laser-guided GPS-enabled robotic cutters to produce them!

Second, when people ask me how to do stuff, instead of telling them to go spend $250 on high-tech sharpening stones (and watch their eyes pop out of their heads), I can honestly offer them a reasonable alternative that only costs half as much (less popping). I realize it's an investment, but it's possible to buy in at different levels.
_________________
Steve, primarily hand tools. Visit my blog at http://www.CloseGrain.com.

[Vann]

[Modernist]

[grahamar]

Thanks for the information and video.
I found it very interesting and appreciate the time/effort in sharing it.

I currently don't have the Arkansas Hard Stone ( the grey/gray stone) you used at the end. I stop at the Norton Fine stone.

I was wondering what affect honing on the Hard stone has compared to just finishing on the Norton Fine stone ?

Thanks

Graham

[dannykaye]

[woodbloke]