Edge/Bevel preferences for Traditional Slip Joints

Bevel type preference for traditional slipjoints

  • V bevel

    Votes: 20 69.0%
  • V bevel with a micro bevel

    Votes: 7 24.1%
  • Convex bevel

    Votes: 2 6.9%

  • Total voters
    29
It all begins to sound sinisterly like a Maths or Physics class - my school nightmares :eek:;)

Hi hi :D I know my friend. Blessed are the ones that are able to take a simple approach to life :)

Thank you folks for all the input :thumbsup:

I am still debating in my head :rolleyes: which way I am going to go with my two new knives that I will be using mainly for camping this season.

My Masserin Plow and my FFG Grohmann Bird and trout #2 fixed blade that should be arriving sometime in the next couple weeks. ( the one in the pic is sabre grind, I ordered a FFG )

I'll keep you posted if I ever make up my mind ;) ( I am the guy that freezes at the supermarket trying to decided among 5 different ketchup brands :D )

2voLjzw.jpg

XJ6v6lR.jpg
 
Hi hi :D I know my friend. Blessed are the ones that are able to take a simple approach to life :)

Thank you folks for all the input :thumbsup:

I am still debating in my head :rolleyes: which way I am going to go with my two new knives that I will be using mainly for camping this season.

My Masserin Plow and my FFG Grohmann Bird and trout #2 fixed blade that should be arriving sometime in the next couple weeks. ( the one in the pic is sabre grind, I ordered a FFG )

I'll keep you posted if I ever make up my mind ;) ( I am the guy that freezes at the supermarket trying to decided among 5 different ketchup brands :D )

2voLjzw.jpg

XJ6v6lR.jpg
I think some experimenting/testing is in order.:D:D Let’s find out definitively with some real world testing. :thumbsup:
 
I think some experimenting/testing is in order.:D:D Let’s find out definitively with some real world testing. :thumbsup:

At the rate I use my knives :rolleyes: :D it will take me a long time to come to a valid conclusion as I don't trust my senses very much in the sporadic use I give them.

It would be cool to know if someone had done a reliable edge retention test comparing different edge types, especially on the "traditional" steels used on most of our knives.

I am inclined to go for a convex edge. I'll practice on a couple cheap knives and if satisfied I will probably attempt a convex edge reprofile on the two knives mentioned.

The convex part for my guided system should be operational in a couple weeks :thumbsup:

If not convex then I will go for a compound double bevel at 15 degrees for the primary and 20 degrees for the micro.

Wish me luck guys :)
 
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Blessed are the ones that are able to take a simple approach to life
I like keeping things very simple. Different edges for different knives and tasks. On reading your thread and different posts got me started up and sharpening, i find it relaxing and food for the soul.:rolleyes::). Last night did a basic job on a work knife. 20 degrees per side V bevel, 600 grit ceramic rod and finished on rough side of leather strop with flexcut gold compound. Not a refined polished edge, but sharp and holds edge really well. All i need for a work knife.:thumbsup:.
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At the rate I use my knives :rolleyes: :D it will take me a long time to come to a valid conclusion as I don't trust my senses very much in the sporadic use I give them.

It would be cool to know if someone had done a reliable edge retention test comparing different edge types, especially on the "traditional" steels used on most of our knives.

I am inclined to go for a convex edge. I'll practice on a couple cheap knives and if satisfied I will probably attempt a convex edge reprofile on the two knives mentioned.

The convex part for my guided system should be operational in a couple weeks :thumbsup:

If not convex then I will go for a compound double bevel at 15 degrees for the primary and 20 degrees for the micro.

Wish me luck guys :)
Good luck. Make sure you keep us updated with before and after pics, and some pics of your sharpening set up, if it's not a secret.o_O.
 
Hi hi :D I know my friend. Blessed are the ones that are able to take a simple approach to life :)

Thank you folks for all the input :thumbsup:

I am still debating in my head :rolleyes: which way I am going to go with my two new knives that I will be using mainly for camping this season.

My Masserin Plow and my FFG Grohmann Bird and trout #2 fixed blade that should be arriving sometime in the next couple weeks. ( the one in the pic is sabre grind, I ordered a FFG )

I'll keep you posted if I ever make up my mind ;) ( I am the guy that freezes at the supermarket trying to decided among 5 different ketchup brands :D )

2voLjzw.jpg

XJ6v6lR.jpg

I'm certain you'll be all over that Grohmann flat ground :cool: Those knives feel like thy are PART of your hand, very underestimated I think.

Thanks, Will
 
I once bought a custom hunter from someone who put a very polished 1200 grit 15° bevel on the edge, but then put a 20° micro bevel at only 600 grit for some extra bite. Seems to work extremely well on game, not sure about more mundane tasks.
 
I once bought a custom hunter from someone who put a very polished 1200 grit 15° bevel on the edge, but then put a 20° micro bevel at only 600 grit for some extra bite. Seems to work extremely well on game, not sure about more mundane tasks.

It makes a lot of sense Jeff, the "toothy" micro bevel initiates the cut and then the material just glides over the primary.

I'm certain you'll be all over that Grohmann flat ground :cool: Those knives feel like thy are PART of your hand, very underestimated I think.

Thanks, Will

Yes Will, from what I read, the overwhelming consensus is that this knives feel like an extension of your hand. I can not wait to get mine.

Good luck. Make sure you keep us updated with before and after pics, and some pics of your sharpening set up, if it's not a secret.o_O.

I will Leon :)

If everything works as planned I will put a link here to a posting on the maintenance section of BF where I'll post pics of the set up.

Right now I am waiting on some little parts from Amazon and for the local public library to 3D print the components.

If it does not work you will never hear from me again :eek::p:D

Great work on those tomatoes my friend :thumbsup: :cool:
I enjoy a good sharpening session now. ( in the beginning it was quite a frustrating ordeal :oops: )
 
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Your terminology for the edge grind is okay. I think there’s some that are getting the blade grind confused with edge grind/bevel. Also the picture chart is a bit confusing as well. Example, full flat grind is the blade from the spine to the edge bevel. I can’t find the picture right now of the reference chart I’ve seen before but it is much more accurate description of the edge grind and blade grinds.

My personal preference for my work knives is a 13-15 dps on a 320 diamond grit with a micro bevel of 16-17 dps with a 650 diamond grit. This gives me a good working edge that stays with me for a lot of cutting. My whittling knives I don’t micro bevel but I like to finish the 15 dps with the 650 grit sharpener. I can make a smoother more precise cut without a micro bevel. I use this on both my flat grind and hollow grind blades.
 
I've used it all.... used to put a lot of thought and work into this when I was making and sharpening knives semi professionally.

The different edge grinds, and the different main grinds... they all cut. Some a smidge better, some a smidge worse.

I have one folder I went to the work to regrind the blade itself not just the edge to a full flat grind, to a zero secondary bevel(think Mora). It cuts. Better than the hollow grind with a Case factory bevel did? Meh. Not so much. Worse? No not that either. Different, yes.

In practical everyday living, from cardboard boxes to food prep, some game processing, and a bit of woodworking, I can't tell a difference between steels, from 1075 to ATS34, and all between. Nor from one main grind type to another, nor all the edge styles... polished edge or toothy, is a wash.

It all cuts just fine. I went from polished low angle secondarys, to having all convexed, polished and not, to scandy zero bevel edges, and back. It all cuts.

For A while I was using and selling a "tiger edge". Full convex blade grind, with an almost micro bevel flat secondary edge on it.. really acute angle you end with, verry durable, but when polished it would shave a nats nuts... sounded fancy and sold well, but in the end there was no real gain, it cuts just the same as anything else.

I've done water stones, power strops, belt grinders in obscene high grits, oil stones, sandpaper and mouse pads.


In super specialized tasks, I see some little difference once in a while... convex blades and edges drag more in thick meat cutting. Convex is lousy for whittling not because of the cut but 'cause the angle it puts your had to the work... wrist breaker usually. Zero bevel edges damage easily. Sometimes. Sometimes not.

Wood carving requires the sharpest you can get, with a sturdy edge, which changes from chisel/blade profile to profile, and wood to wood being carved! Only constant there is polish it smoother than the proverbial infants ass...

For several years all I did was free hand a verry low secondary bevel, almost a 0 bevel edge on with a ~600 grit belt, then buff with green chrome on a sewn wheel. Then unless I chipped an edge, All I ever did was hit that buffing wheel once a month. Super high polished thin edge, power stropping I called it, fasted sharpening ever, but it cut the same as anything else.

Anymore, I use whatever edge comes on a knife. They all cut. To eventually re-sharpen, I use one of those cheap Smiths $5 carbide V sharpeners. It either matches the factory bevels, or it re does them in a few months. In the interim, I guess I have a v edge with a micro bevel as it re cuts the angles. Done maybe once a month for for my most carried knives. Or as needed if I chip an edge. If I feel fancy I'll run a pass or two on the ceramic V side of it. Big chips I'll take out on a 220 belt at the sander.

As long as it cuts, I don't care what shape it is, if its centered, even side to side, what angle it is, or if its particularly smooth. Sharp is sharp. :cool:
 
Hello Porch :)

I am glad I posed the questions as the poll results have surprised me.

I was interested in what folks here on the Porch would prefer coming from a traditional knife perspective as most of this type of conversation happen more in the context of modern steels, modern knives, bushcraft etc.

I was sure that option # 2 ( V bevel with a micro bevel ... better defined as a compound double bevel ) would come on top by a wide margin.

Poll results ( so far ):

Question :
# 1. 16 votes
#2. 5 votes
#3. 2 votes

I have not yet casted my vote :rolleyes: :D

I emailed someone who is very passionate about sharpening to pick his brain and his answers surprised me yet again.
For most general use and with decent steel 15 degrees V is what he recommended me.

For a knife that may do some light chopping around the camp, especially if it has softer steel he suggested I could go with convex or option # 2.

As you guys know, BF is a wealth of info about all things knife so I spent some time reading up a few threads on sharpening.
Again I was a bit surprised when one of our residents sharpening experts suggested basically the same thing.

Oh, and the super polished mirror edges ...told its not really needed (.. :( ..but sir, I like to see my reflection on my knives bevels :D )

So as it stands now, convex is off the table for my Masserin Plow.
I will probably give it a 15 degrees V with a very light "tune up" on the sharpmaker rods at a higher angle. Just a few very light passes to tune the edge.

For my Grohmann Trout and Bird and may go convex.

In addition to the camping food prep duties of this knife I can see myself chopping little twigs/branches here and there, feathering sticks by the campfire or carving some tent stakes (all with small branches of course, is a bird and trout after all).

Cheers :)
 
Hi again folks, I just want to drop this post here about my newly built 3d printed knife sharpening system designed by our own BF member 777 Edge 777 Edge .

The files for printing are available for free download at Thingiverse.

Building this system was what prompted me to start this thread to learn more about sharpening angles/bevels as it pertain to traditional slipjoints.

If you are interested to learn more about check out this thread on the Maintenance, Tinkering & Embellishment section of BF at:
(discussion of this sharpener belongs over there 😉 )


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I used to use a polished and well stropped edge but I found that the fine edges didn't last very long regardless of the steel. I'm currently using a stropped 600 grit edge and I really like it. It will still shave arm hair but it cuts through rougher stuff far better and retains its edge far longer.
 
I'm currently using a stropped 600 grit edge and I really like it.
👌 👌 👌 I used to have a small sharpening{ Cash Only:) } business as a side line. Most of my customers used their knives as hard working knives, i did quite a few for abattoir workers, and they all wanted a 600 grit water stone finish, and either finished with a strop on the rough side or a ceramic rod. A few preferred a 1000 grit finish for specific slicing knives, but other wise 600. As you know, you can get a really sharp edge that holds up with 600 grit. The key with all sharp edges is to take your time with the first larger grits to get your bevel right, if you don't do this you are wasting your time. Have a good one.:thumbsup:
 
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