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Thread: 5 Degree Back Bevel - How?
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1st August 2009, 10:30 PM #1Small Chips
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5 Degree Back Bevel - How?
I want to try out a 5Degree back Bevel on a LA blade that's currently ground to 20Deg but I don't have anything to do it.
I don't have a grinder, just W&D and 4k/8k waterstones.
I have a VeritasMk.II but the plane blade is too short/jig too high to do 5 degrees.
I've read about the ruler trick but this only does ~1degree angle and also does not sound consistent - if I used a few rulers to get a higher degree it would vary as I pushed the blade back and forth creating a curved back - I'm not sure if this is a bad thing....
How do you get a low angle bevel without a grinder?
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2nd August 2009, 02:43 PM #2Hewer of wood
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Acc to the instructions for the Veritas Mk II you can get a 5 degree backbevel by dropping the roller onto a spacer placed at the end of your stone.
The required gap between the spacer and the stone top is listed in the instructions.Cheers, Ern
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2nd August 2009, 03:01 PM #3Small Chips
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I'll dig them up and have a look but it makes plenty sense.
Cheers!
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14th August 2009, 01:10 PM #4Senior Member
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At the risk of asking a dim question, why do you want to put a back-bevel on a low-angle blade?
I assume that the low-angle blade will be bevel up (I think that most are, but let me know if I'm wrong on that one). That means that it is the face bevel angle and the bed angle that will together to form the effective cutting angle.
I don't quite see how a back bevel on a low-angle blade is going to change anything, other than making subsequent sharpening a pain in the neck since you have to set up twice for both sides of the blade.
Cheerio,
sCORCHYes - I'm a lawyer.
No - I won't bill you for reading this.
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14th August 2009, 01:58 PM #5
Horses for courses, but I've never seen the use and only put a primary bevel on.
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14th August 2009, 03:32 PM #6
I understand that you are experimenting, so that makes it a reasonable activity - otherwise I would try and talk you out of a meaningless goal, one that introduces extra effort without sufficient rewards.
You can probably get the Veritas MkII to do a 5 degree backbevel on a short blade in one of two ways:
1. Use a short blade holder. Veritas sell one (it holds the blade with rare earth magnets).
2. Alternatively, ignore the settings on the guide and fiddle around until you find a match for 5 degrees. Draw a 5 degree line on a piece of cardboard to use as a guide. This worksfor me.
Regards from Perth
DerekVisit www.inthewoodshop.com for tutorials on constructing handtools, handtool reviews, and my trials and tribulations with furniture builds.
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