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Sharpen a knife - PEP BB tool.sand.knife

BB tool care - sand badge
posted 6 years ago
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This is a badge bit (BB) that is part of the PEP curriculum.  Completing this BB is part of getting the sand badge in tool care.

Everyone has a dull knife laying around.  Let's sharpen it with a whetstone and complete a BB.  

There are many youtube videos on the process so watch a few before you get started.




Requirements to complete:
 - must be sharpened with a whetstone (or more than one)
 - sharpen secondary edge as well as primary edge
 - hone
 - test before and after with cutting paper

To get certified for this BB, post three pics:

  - closeup of pic of the dull edge OR pic of the dull knife raggedly cutting through a piece of paper
  - action pic of sharpening
  - pic of the sharp knife having cut halfway through a piece of paper
COMMENTS:
 
Robbie Bassen
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posted 6 years ago
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This knife was sharpened with a Tri-Hone Sharpening Stone. There is a coarse side (400 grit), a medium side (600 grit), and a fine ( Approx 100=1200 grit). soaked in water for about 10 mins the started sharpening with an occasional splash of water. Might use oil for the fine grit side next time. Watching videos had me playing around with different techniques, but nothing too crazy to get awry. I'll be looking into some high quality wet stones for the future.
Dull-knife.jpg
Dull knife
Dull knife
Paper-mark-with-dull-knife.jpg
Paper mark with dull knife
Paper mark with dull knife
Sharpening-Knife.jpg
Sharpening Knife
Sharpening Knife
Cut-right-thru-that-paper....jpg
Cut right thru that paper...
Cut right thru that paper...
Staff note (Mike Haasl) :

I certify completion this BB

 
Mike Haasl
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posted 6 years ago
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I sharpened a knife!  It's a grafting knife and I wanted to reduce the angle on the edge a bit.  So I reworked it to a 17 degree angle and did a tiny second bevel at 20 degrees.  I used this little knife sharpening jig and it seemed to do a pretty good job of maintaining the desired bevel angle.
Grafting-knife.jpg
Grafting knife
Grafting knife
Sharpening-jig.jpg
Sharpening jig
Sharpening jig
Ooooo-cuts-so-smooth.jpg
Ooooo cuts so smooth
Ooooo cuts so smooth

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Staff note (paul wheaton) :

I certify this BB is complete!

 
Bill Anderson
Posts: 62
Location: Hartwell Georgia USA
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posted 6 years ago
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Each time I sharpen a knife, I forget to take pics. So here's my addition to the thread.
Two-dull-knives.jpg
Two dull knives
Two dull knives
Dull-dull-dull.jpg
Dull dull dull
Dull dull dull
First-stone.jpg
First stone
First stone
Action-shot-of-sharpening.jpg
Action shot of sharpening
Action shot of sharpening

Zone 8a Handicapped Gardener with crutches, sometimes a wheelchair

 
Bill Anderson
Posts: 62
Location: Hartwell Georgia USA
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posted 6 years ago
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And more, cause I hit the wrong button...
Bag-of-sharpening-stones.jpg
Bag of sharpening stones
Bag of sharpening stones
OoOo-cuts-so-smooth.jpg
OoOo cuts so smooth
OoOo cuts so smooth
What-paper-.jpg
What paper?
What paper?

Zone 8a Handicapped Gardener with crutches, sometimes a wheelchair

Staff note (paul wheaton) :

I certify that this BB is complete!

 
Jeremy Butler
Posts: 79
Location: North Carolina Foothills
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posted 6 years ago
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I sharpened my EDC knife.

Dull-Knife.jpg
Dull Knife
Dull Knife
Wetting-the-whetstone.jpg
Wetting the whetstone
Wetting the whetstone
Two-grit-whetestone.jpg
Two grit whetestone
Two grit whetestone
1000-grit-first.jpg
1000 grit first
1000 grit first
6000-grit.jpg
6000 grit
6000 grit
Pfft-it-cut-effortlessly.jpg
Pfft, it cut effortlessly
Pfft, it cut effortlessly
Staff note (paul wheaton) :

I certify this BB is complete!

 
r ranson
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posted 6 years ago
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I lent out my butchery knife.
yep.  That about says it all.  
I have two knives that need sharpening.  This was the first.

I got the knife sharp enough for regular kitchen work, but not quite as good as I demand for butchery.  If I could find my strop I think I could get that final edge.  
attempting-to-cut-grapes-with-a-dull-knife-knife-on-the-right-is-kitchen-sharp-and-slices-cleanly-through.jpg
attempting to cut grapes with a dull knife - knife on the right is kitchen-sharp and slices cleanly through
attempting to cut grapes with a dull knife - knife on the right is kitchen-sharp and slices cleanly through
soaking-the-stone.jpg
soaking the stone
soaking the stone
first-I-sharpen-on-the-stone.jpg
first I sharpen on the stone
first I sharpen on the stone
then-I-finish-up-on-the-steel.jpg
then I finish up on the steel
then I finish up on the steel
I-can-easily-slice-thin-wedges-off-paper-(but-then-needed-to-use-the-steel-again-because-paper-dulls-the-edge).jpg
I can easily slice thin wedges off paper (but then needed to use the steel again because paper dulls the edge)
I can easily slice thin wedges off paper (but then needed to use the steel again because paper dulls the edge)

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Staff note (Mike Haasl) :

I certify this BB complete!

 
Michael Holtman
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posted 6 years ago
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The primary and secondary edges were both sharpened, thus removing some of the pitting in the hollow grind. After a few more sharpenings, the hollow grind will be almost imperceptible.
I used a stone with corse and fine sides. It was then finished up with cardboard.

(Yes I know, but it's not even my cardboard, I just found it. Value the marginal, right? I would have used a piece of hickory if I were doing this at home.)
Dull-Opinel.jpg
Dull Opinel
Dull Opinel
Sharpening-stone.jpg
Sharpening stone
Sharpening stone
Sharpening-stone.jpg
Sharpening stone
Sharpening stone
All-finished.jpg
All finished
All finished
Cuts-like-butter.jpg
Cuts like butter
Cuts like butter

"Now he called his name Noah, saying, 'This one will give us rest from our work and from the toil of our hands arising from the ground which the Lord has cursed." -Genesis 5:29 (NASB)

Staff note (Steve Thorn) :

I certify this BB is complete!

 
Michael Cox
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posted 6 years ago
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I need to post on this. I love sharpening my knives properly. It is so satisfying.

But I have never taken pictures of the process!

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Dave Burton
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posted 6 years ago
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I learned how to sharpen a knife today!

This is a picture of the knife mangling a piece of paper.



This is a picture of me sharpening the knife.



This is a picture of me cutting through paper significantly cleaner and smoother than before!

Dave's SKIP BB's / Welcome to Permies! / Permaculture Resources / Dave's Boot Adventures & Longview Projects

Staff note (Steve Thorn) :

I certify this BB is complete!

 
He loves you so much! And I'm baking the cake! I'm going to put this tiny ad in the cake:
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