Author Topic: Sharpening angle  (Read 2046 times)

Offline hortonstn

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Sharpening angle
« on: May 01, 2019, 04:06:09 AM »
What angle are most wood carving flat chisels sharpened to ?

Offline G_T

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Re: Sharpening angle
« Reply #1 on: May 01, 2019, 04:14:01 AM »
There isn't going to be a single answer to that question. The harder the wood, and the more forceful the carving action, the fatter the wedge needs to be to have good durability.

Perhaps this link will be of some use: https://www.highlandwoodworking.com/woodcarving/2-sharpeningCarvingTools.pdf

Gerald

Offline David Rase

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Re: Sharpening angle
« Reply #2 on: May 01, 2019, 06:44:53 AM »
I sharpen most of my flat chisels at 15 degrees.  I then add a secondary or "micro" bevel so I have a heel to use as a fulcrum. The fulcrum serves two purposes, one it burnishes the wood when I am grounding my carving and two it works as a pivot to control the depth of my cuts.
David   

Offline Rich

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Re: Sharpening angle
« Reply #3 on: May 01, 2019, 10:59:02 AM »
I sharpen flat chisels at 25 degrees with a micro bevel of 30 degrees. Curved gouges 20 degrees with a 25 degree micro bevel. Same reason Dave gave for the micro bevels.

Offline Craig Wilcox

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Re: Sharpening angle
« Reply #4 on: May 01, 2019, 04:25:43 PM »
I must be a "middle of the road" guy - I use 20* on most, and again with the micro bevel.  I do use a Veritas angle setter and roller jig, on diamond plates to 2,000.  I have 3M abrasive films running on up to 8,000, but very rarely use them.  I hone on leather, one with Simichrome, the other with Fabuluster.
Craig Wilcox
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Offline WadePatton

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Re: Sharpening angle
« Reply #5 on: May 01, 2019, 04:57:52 PM »
I sharpen by feel as Paul Sellers teaches, to a flat bevel, no micro bevels on single-bevel edges, but fully polished. 
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Offline Dan Fruth

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Re: Sharpening angle
« Reply #6 on: May 01, 2019, 07:47:09 PM »
The greater the angle the more force required to make the cut....Woodworkers use 25-30 degrees for mallet driven chisels, and 15-20 degrees for hand guided work...Just a rule of thumb...
The old Quaker, "We are non-resistance friend, but ye are standing where I intend to shoot!"

Online Jerry

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Re: Sharpening angle
« Reply #7 on: May 03, 2019, 01:45:29 AM »
I sharpen most of my flat chisels at 15 degrees.  I then add a secondary or "micro" bevel so I have a heel to use as a fulcrum. The fulcrum serves two purposes, one it burnishes the wood when I am grounding my carving and two it works as a pivot to control the depth of my cuts.
David
David Rase, Excellent advice. Jerry

Offline JohnnyFM

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Re: Sharpening angle
« Reply #8 on: May 04, 2019, 03:11:47 PM »
What Wade said. I’m a rookie carver (read stupid) so I want to keep it simple.  Works for me.

Fowler610

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Re: Sharpening angle
« Reply #9 on: May 06, 2019, 06:03:14 AM »
I hone on leather, one with Simichrome, the other with Fabuluster.

I tried stropping with Formax micro fine honing compound (active ingredient is titanium dioxide) but it does not want to bond to the leather strop.  Must be for wheels only.  Craig, do you apply Simichrome directly to the strop?   Never heard of Fabuluster.  How about aluminum dioxide?   

I'll redo my chisels to 15 degrees.  Maybe that's why I was having difficulty with my sharp chisels--I sharpened them at 30 degrees with my Veritas machine.  Love this stuff! 
« Last Edit: May 06, 2019, 06:25:55 AM by Fowler610 »

Offline Craig Wilcox

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Re: Sharpening angle
« Reply #10 on: May 06, 2019, 05:36:02 PM »
Fowler, I keep different compounds on different strops.  Son makes rifle slings, has some scraps that I just glue to a piece of board.
Fabuluster is a white compound that jewelers use on their polishing buffs.  Works pretty good on tool steel.  Comes in a tube and is rather hard.  Rub it hard into the leather.  On a buff, apply it to the spinning buffing wheel.
 And yes, on the Simichrome strop, I just put some on the leather, then buff it in by stropping the chisels.  I have used Mother's Mag Wheel polish in the past, works pretty good.
Jewelers rouge is good for polishing soft metals, like brass or gold.
Aluminum oxide is what is on my sandpaper.  Speaking of which, 3M makes polishing films of various fineness, and I have several that I use.  I use diamond plates and the Veritas gauge for shaping whatever angle bevel the tool calls for, in 300, 600, 1200 and 2000.  Then the films go on up to 8,000.  Not much need for more than 4000, but the films will do a great job of polishing that edge for you.  I think Gesswein has a sample package of the films so you can try them out.
Don't cut yourself!
Craig Wilcox
We are all elated when Dame Fortune smiles at us, but remember that she is always closely followed by her daughter, Miss Fortune.

Fowler610

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Re: Sharpening angle
« Reply #11 on: May 07, 2019, 04:34:46 PM »
Appreciate the advice, Craig.  Thank you.   And thanks to Hortonstn for asking the question.