Blade grinding problem

12/20/05, 7:14 PM #1

Jerry Nicholson
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Registered: 2/6/03

Blade grinding problem

Jerry Nicholson

>Got my new grinder and new LV grinder jig set up. Reground the bevel on a nice Stanly 2 inch plane blade and then found it had a slight skew. No sweat - resquared the blade in the holder and ground it again - still skewed. Went to work with my new LV MK II sharpening guide and new Norton stones, expecting the blade to hone square. Guess what - STILL SKEWED! I was about to decide that hand sharpening on sandpaper was as good as the new fancy tools. Even considered sending a nastygram to LV. Then I got out my digital caliper (with the big readout for my old eyes) and discovered that the blade tapered in width by .030 in the length of the blade. No wonder I can't grind it square! I checked a LV 2 3/8 blade and its width varied no more than .001. Checked a different Stanley blade and found it to be within .005 in width. Can't necessarily trust the first results from new tools.

Jerry

Re: Blade grinding problem

12/20/05, 7:40 PM #2

Ted Owen, Pittsburgh
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Re: Blade grinding problem

Ted Owen, Pittsburgh

>The Stanley 2" blade was a new blade? You may consider getting a thicker 3rd-party replacement blade in any event, rather than rework the Stanley blade.

Glad you figured it out.

Best, Ted

Re: Blade grinding problem

12/20/05, 7:58 PM #3

Jerry Nicholson
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Re: Blade grinding problem

Jerry Nicholson

>The blade is not new but is in really nice condition. I have three LV blades fitted with Clifton or Hock chip breakers for serious work but I wanted to work on my sharpening skills with the new tools before grinding away at the good blades.

I do have a new (made in England) Stanley blade that I will have to pull out and measure for taper. Of course there would be no need to grind it but a taper will make it hard to set up for honing.

Jerry

Re: Blade grinding problem

12/20/05, 8:01 PM #4

Dave Thompson - Champaign IL
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no problem

Dave Thompson - Champaign IL

>Hi Jerry, Sorry if I misunderstand, but I'm wondering why you are concerned? The slight skewing disappears with lateral adjustment. You'll never know it's off once you put it back in the plane.

FWIW, this happens all the time to me with my Tormek.

Dave

Re: Blade grinding problem

12/20/05, 8:09 PM #5

Jerry Nicholson
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Re: no problem

Jerry Nicholson

>My main problem was that this was the first blade I tried with the new tools and I was concerned that either the tools might have a problem or that I might have a problem using them (a very likely scenario, BTW). Previously I sharpened blades by hand using the sandpaper method (called "scarey sharp" for some strange reason) and grew to expect skew, rounding, etc but I was hoping I could do a little better with the new equipment.

Jerry

Blade grinding problem

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