I have seen the famous Charlesworth DVD's and found them to be awesome. So, in short, should I use David Charlesowrth's sharpening methods-specifically, the ruler trick-, to flatten the backs and sharpen bevel-up plane irons? I haven't looked recently at mine (which is back in the box after a quick try, newbie with little time for wood-chopping) and anyway I trust YOUR judgment better than mine …was wondering if this lessens the bed support area at all, affecting the iron's stability. Please don't hate me for being so ignorant. Thanks a million.
Hey Gary, thanks for your help! Tomorrow or Sunday afternoon I will have a long sharpening session…plane irons, scrapers, maybe a few chisels! Looking forward to it, time to check out my old cd collection!
The ruler trick works great on bevel up and bevel down planes. Just don't but too excessive of a back bevel on there and you should be fine. I've been using the ruler trick on my planes for several years and haven't ever had a problem.
Thanks guys. Now one more question: since the thicker the ruler, the shorter the polished area and more aggressive the angle, what ruler blade thickness have you found optimum for BU irons, if you have a preference?
For the ruler.. get the thinnest one you can. I have the little LN 6" ruler, and I use that. I also have a tiltbox 2, and for kicks one day, I set up the stone with the ruler, and I put the tiltbox on the blade, and it registered .25 of a °.
You place a ruler on the sharpening the stone when flattening the back. It puts a slight back bevel on the blade, but speeds up the flattening process. It should only be done with plane blades (not chisels).
I went through these aforementioned sharpening sessions, no ruler. Yup it was arduous but it worked fine, got the "business end" polished.
Someone tipped me and said some "shim stock" from Grainger would work. Not sure how the sell it at the actual retail shop but might find out this upcoming weekend. I will get the Lie-Nielsen ruler soon.
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