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Sharpen a knife - PEP BB tool.sand.knife

BB tool care - sand badge
 
pollinator
Posts: 187
Location: North Island, New Zealand
215
chicken food preservation fiber arts woodworking homestead
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As I'm presently working on some carving projects, I needed to sharpen my carving knife! I used a sharpening stone wetted with water, and a leather strop. Cuts wood much cleaner now!
mb-bb-tool-sand-knife-1.JPG
Dull wood carving knife
Dull wood carving knife
mb-bb-tool-sand-knife-2.JPG
Sharpening on wetted stone
Sharpening on wetted stone
mb-bb-tool-sand-knife-3.JPG
Much better (snagged it slightly against the haft in the middle there, but cuts much nicer!)
Much better (snagged it slightly against the haft in the middle there, but cuts much nicer!)
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Mike Haasl approved this submission.

 
gardener
Posts: 1632
Location: Japan, roughly zone 9b - wet and warm climate
736
kids home care trees cooking bike woodworking ungarbage
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My knives are getting very dull... Could not cut paper, it just blunt ripped it.

Sharpened with diamond stove #400 and #1000 then a high grit water stone and finally a leather strop.

Final result is laser steel.
IMG_20210903_143327745.jpg
Will not cut...
Will not cut...
IMG_20210903_144956488.jpg
 This knife has a completely flat side and a double beveled side, here I'm sharpening the flat side.
This knife has a completely flat side and a double beveled side, here I'm sharpening the flat side.
IMG_20210903_154227403.jpg
Laser steel
Laser steel
Staff note (gir bot) :

Mike Barkley approved this submission.

 
gardener
Posts: 391
Location: Pembrokeshire, UK
292
2
dog forest garden gear fungi foraging trees building medical herbs woodworking homestead
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I used three whetstones: 320 grit, 600 grit and 1500 grit to sharpen the primary and the secondary/micro bevel. I used a sharpening jig ("Ruixin Pro") to do this and, I must say, it made it very easy. I've only ever sharpened freehand before.

Once I'd gone up to 1500, I took the knife out of the jig and burnished the edge using some corduroy trousers. This took off the burr and honed the edge.

I've attached photos of the sharpening jig, the whetstones used and the required before/after paper cuts.
knife.jpg
Knife, before sharpening
Knife, before sharpening
before.jpg
Can barely make it through paper
Can barely make it through paper
320-wip.jpg
320 grit
320 grit
600-wip.jpg
600 grit
600 grit
wip.jpg
Action shot!
Action shot!
stones.jpg
Whetstones used
Whetstones used
ruixin.jpg
The sharpening jig
The sharpening jig
after-paper.jpg
Cuts beautifully now
Cuts beautifully now
blade.jpg
Tried to get a shot of the blade edge
Tried to get a shot of the blade edge
Staff note (gir bot) :

Mike Barkley flagged this submission as not complete.
BBV price: 1
Note: Nice sharpening rig. That looks like the Buck knife I lost running from a helicopter that almost landed on me.

Staff note (gir bot) :

Mike Barkley approved this submission.

Staff note (Mike Barkley) :

Oops ... clicked the wrong button.

 
Luke Mitchell
gardener
Posts: 391
Location: Pembrokeshire, UK
292
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The sharpening rig was £15 on eBay. I've seen them for sale at $50 but you can pick them up really cheap direct from China. I recommend it - as much as I hate buying new stuff, this is worth the consumerism.

The knife is one of a few that I inherited from a grandparent. They are pretty low quality but pretty and nice to carry. If you're missing yours then I'd gladly send you one
 
Posts: 72
24
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i sharpened a homemade knife my uncle made in the 80s that couldn't cut through paper.
PXL_20210911_144839723.jpg
dull
dull
PXL_20210911_145230903.jpg
post-sharpening through paper
post-sharpening through paper
PXL_20210911_145249577.jpg
post-sharpening sharp blade
post-sharpening sharp blade
PXL_20210911_150941472.jpg
in progress
in progress
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Hans Quistorff approved this submission.

 
gardener
Posts: 1495
Location: Hudson Valley, New York
801
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I used 1000, 3000 and 8000 grit whetstones which I pre-soaked. I keep my kitchen knives very sharp hence the high grit numbers. I also use a guide, which might be a little controversial, so let me explain. The guide ensures a constant angle on the bevel. I’ve been sharpening knives for over thirty years and I get the best results using a guide. It might not require the same level of skill as sharpening freehand, but I’m not a professional knife sharpener. I just want really sharp knives every time.
C8572DAF-FDFF-4381-BD4A-4038D56F1555.jpeg
Failed paper cut
Failed paper cut
4C06A091-35B3-4CDB-BB2C-AEEC2B7344CD.jpeg
Whetstones in action
Whetstones in action
B6174720-8C22-4DD9-9AE2-F64B682A11A1.jpeg
Whetstones in action
Whetstones in action
6A7BB972-B998-493E-9587-985F57282F51.jpeg
Whetstones in action
Whetstones in action
13692796-244B-40BA-97DF-611598795CF0.jpeg
Final paper cut
Final paper cut
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Mike Barkley approved this submission.

 
Posts: 16
Location: Tacoma, WA & Winemucca, NV
7
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Submitting for cert
20211002_171405.jpg
Dull1
Dull1
20211002_171506.jpg
Dull2
Dull2
20211002_173428.jpg
Action
Action
20211002_173931.jpg
Sharp
Sharp
Staff note (gir bot) :

Mike Barkley approved this submission.

 
pollinator
Posts: 148
Location: Archdiocese of Galveston-Houston (Texas Gulf Coast, USA)
93
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I sharpened my EDC/baling-twine/feed-sack knife. The poor thing was a bit neglected and could barely cut water at this point, let alone paper. My experience sharpening knives has been pretty much limited to sharpening my slaughtering/boning knife, which never gets really dull, so I'm glad this turned out well.

I used a two-sided whetstone with dish soap and water to establish the edge and sharpen the knife, and the unglazed ceramic at the bottom of a coffee mug to hone the blade. The in-progress photos were a little off, since I prefer to use both hands to stabilize the angle and couldn't take the picture at the same time, but I hope it gets the point across.
IMG_3803.JPG
paper ripped by dull knife
paper ripped by dull knife
IMG_3804.JPG
rough sharpening
rough sharpening
IMG_3805.JPG
fine sharpening
fine sharpening
IMG_3811.JPG
honing
honing
IMG_3812.jpg
successfully sharpened
successfully sharpened
Staff note (gir bot) :

Mike Barkley approved this submission.

 
Posts: 114
Location: VIC, Australia
66
kids gear cooking building solar homestead
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I bought myself a whetstone just because I could. I have sooo many dull knives that I'll be using it as much as possible
20211107_170242.jpg
To be sharpened
To be sharpened
20211107_170301.jpg
Tried but it just tears from brute force
Tried but it just tears from brute force
20211107_172637.jpg
Much better
Much better
16362665893751851189107192800684.jpg
Honing on 3000 grit
Honing on 3000 grit
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Mike Barkley approved this submission.

 
Posts: 31
Location: Fernie, British Columbia
33
chicken building ungarbage
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This knife has never been properly sharp. I really want to like it because the handle is very comfortable and it is a great size for processing chickens, however it has been very difficult for me to get sharp. Here's a go at a good sharpen with the whetstone which I have not tried before. Judging by the paper, it went well. Excited to try out for cutting some meat!
IMG_20220323_144232_resize_39.jpg
Knife in question
Knife in question
IMG_20220323_144245_resize_28.jpg
Attempt at cutting paper - mostly ripped, not much cutting happening
Attempt at cutting paper - mostly ripped, not much cutting happening
IMG_20220323_144508_resize_72.jpg
Action shot, coarse grit
Action shot, coarse grit
IMG_20220323_145059_resize_18.jpg
Getting better
Getting better
IMG_20220323_145144_resize_99.jpg
Fine grit stone
Fine grit stone
IMG_20220323_153436_resize_33.jpg
Very sharp now
Very sharp now
Staff note (gir bot) :

Mike Barkley approved this submission.

 
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