Knife sharpening machine wanted...

Status
Not open for further replies.
If a knife it pretty dull I just run it quickly across a small belt sander. Grizzly 1x32. was about $50.

Can't find any super fine belts for it. But a 120 grit, a light touch will get the flat off an edge that would take hours of honing.

Just recently put some old carbon steel kitchen knives back in commission. They were rusty, and the blade was as dull as the back side. 5-6 mins all three had a toothy bur on them that I cleaned up in thirty minutes. So 12 mins a knife, from duller than a butter knife, to making my arm bald again.

And JTW what is that second belt sander in the background. Like like a chopped and modded version of mine ( which I would like to do, but it's only 1/3 hp.)
 
Progress report...

Emboldened by the discussions above, and stuck in the house all day with paperwork (ugh!) 'phone calls, and other noisome details, I took a break, took an Old Hickory knife from my kitchen, one which has always been too thick to use effectively, much less sharpen nicely, down to my basement workshop, and applied it to my carpenter-type belt sander.

Had never conceived of the idea of applying a knife to a sanding machine prior to the responses in this thread. Approached with considerable trepidation, you may be sure! The sander I used was one I inherited from my grandfather--a floor-standing home-built job (most of the parts are wooden!) which has a (probably) 3x30 belt. From its design I suspect it was made in the Depression 1930's, or perhaps the War-shortage 1940's. But I really don't know. It does have a nice powerful motor.

Held the knife VERY securely, you may be sure! Sandpaper??? On a knife??? Horrors!!! Well, here goes.

Anyhow, 5 minutes or so were enough to convince me that I need to pursue this avenue further. As to the knife in question, well, let's say that my technique needs work. Made a number of shall we say errant grind-marks along the blade. However, even this crude try produced a better profile than has ever been on that knife! Removed the bur (sp?) with a coarse and then a fine DMT pocket stone, and VOILA! Vive la difference!

Now, I just gotta get a small enough machine to move around, and the really proper belts, etc, etc. Not to mention practice, practice, practice.

ETA--Aka Zero--Try Jantz Supply for yr belts. Website: http://www.jantzsupply.com
 
Last edited:
Check this link out , Jerry Hossom's knives are some of the sharpest I have handled. For anyone who thinks using a 1x42 or 1x30 belt sander is an insane idea , please read this , you may have to join to read , but it is worth it.
http://www.knifemakerforums.com/showthread.php?t=10&highlight=sharpen

or for any BF members:
http://www.bladeforums.com/forums/showpost.php?p=4916570&postcount=78

Lee Valley has the 1x30 belts in up to 1200 grit , you can also get a leather belt which becomes a power strop.
http://www.leevalley.com/wood/page.aspx?c=2&p=48040&cat=1,43072

also check out J.Neilson:
http://www.youtube.com/watch?v=TLjFjT4vYsM
 
Thanks again!

To all who have been so encouraging!

JTW--That Nielson video was very encouraging! I'm not so nervous about the whole thing now.
 
Very cool thread. This has been a topic of interest of mine for some time, as well as a potential solution to the frustration toward nearly *every* knife manufacturer who ships their knives out with a decent "edge" but such a high angle of grind as to be ridiculous.
 
No machines here

I am a knife collector. I also sale knives locally and online. I have a sharpening service at my home where I sharpen many knives throughout the year and during hunting season I average about a dozen per week. I also repair knives and buddy you should see some of these blades that people bring in to be repaired...LOL. I have been asked the question about whether or not I use a mechanical device by a few people and my answer is a huge NO.
When it comes to sharpening knives, there is no replacing the good ol` hands on application. Now when making knives, of course, the machines are needed in order to decrease the time spent to get the desired shape and angle that one needs or wants to obtain.
One thing that I have discovered about people and their knives is that everyone is a pro...LOL I say this as a joke but it is very true. Some say push, others say pull, some say forward, some say backwards. The way that I get my sharpening business is by word of mouth alone. Even with this, many of the people who bring their knives in ask to watch me do the work. They ask this out of concern for their blades. Of course I will call the customers that want to watch once I`ve done everything but the final polishing of the edge.
Many people will laugh when I explain the fact of the ability to sharpen a knife to a shaving edge with a concrete block and a piece of cardboard but it`s true as true can be. This is an application that only needs to be used as a survival technic but it works.
The best stones that I`ve found are the Japanese wetstones but the Arkansas stones are a pretty close match. Though some experts say that my process is overkill, I will tell you anyway. I use a medium grain arkansas stone for starters to obtain the angle needed for the sharpening. (NOTE) Each blade is different and the use of the blade is also important for me to know to choose my angle. Once the angle is established I use a Black Surgical Stone and a Translucent Stone to get the edge smooth as possible. The final step is the leather strap. (STRAP--Pronounced STROP) This step smooths the edge and removes any micro burs.
A few common mistakes that people make are using a steel to "sharpen" their knives. Steels are only to be used to roll the edge back up on a blade, NOT to sharpen. Another is the use of lightbulbs, poor ceramics etc. to sharpen their knives. This, to me, is HORROR on a blade. Basically, anything used that throws an edge onto a blade is bad.
Once you have a knife sharpened, all that needs to be done to keep an edge is a few swipes on the steel. I sharpen a few butchers knives about 4 times per year. This should tell you how much a knife needs to be sharpened because butchers heavily use their blades but these guys listen to me and use the steel to roll the edge back and their knives stay sharp a long time.
All in all, if you put the correct edge for the application on your knife, take your time while polishing it and keep a steel handy to roll the edge up every now and then, you can accomplish the job of sharpening. The machines are a nice addition for any knife builder but there`s no way to create the edge that the human hand can. Of course, as with anything else, to each his own.
BUT...If anyone tried to put any of my Damascus blades or in fact any other of my knives in my collection on a machine to sharpen them....There would be TROUBLE!!
 
Once you have a knife sharpened, all that needs to be done to keep an edge is a few swipes on the steel.
While that may hold true for kitchen knives , utility knives or knives being used hard where a chipped edge or dinged edge may occur , do mandate using much more than a steel.

I agree with most of what you said , and agree that if you maintain your edge , with just a few strokes on a steel pr a ceramic rod , you will seldom have to actually spend anytime doing much more.

Damascus blades are no different than others , they can be sharpened the same , it is all in what you are comfortable using. I don't use stones because when you finish a knife , and you want to get it sharp from a thickness of say .017 , you better get a snickers cause you ain't going anywhere for awhile if using just a stone. In reality the amount of people that actually use damascus blades is small compared to non-damascus.

Before discounting the belt machine and paper wheels , perhaps find out how that original edge was put on there , unless all the knifemakers are doing it wrong. ;)

You should not however be using the belt machine to sharpen you knife everytime you need to touch up the edge , the belt is for reprofiling a badly damaged or blunted edged knife. Use a ceramic rod or the un-gritted paper wheel , and with just a few LIGHT touches on either , you are back in business in under 60 seconds.
 
Uhhh

Before discounting the belt machine and paper wheels , perhaps find out how that original edge was put on there , unless all the knifemakers are doing it wrong.

If you read my post you would see that I stated the fact of the belts being used in the knife making process is well needed.

I`ll try not to argue these points much but you state that Damascus isn`t different...You couldn`t possibly be more incorrect. Most knife companies use the standard stainless steel for their blades. Who knows how the blades are forged or tempered. In fact, if you call some of these American knife makers, they will not have a clue about these attributes. The funny thing is that some of the U.S.A. knife makers that most people praise as being "the best" are actually junk.

As far the Damascus, Damascus is the absolute finest metals in the knife making and sword making industry. There are many different combinations of metals used in making the Damascus steel and even the cheapest metals such as O-1 tool steel, S-2 shock steel will beat any stainless steel or standard carbon steel blades by miles.
One of my favorites is the mixture of ATS-34 and 12C27 Sandvik steels. This Damascus billet not only will have a hardness of 58-60c and at the same time one of the most flexible steels but also is absolutely beautiful.
The top of the line, in my opinion, is the use of 1095 steel and Glorieta meteorite. You will pay dearly for this steel as it is the steel of Kings.
The best all around combination that is superior to most other mixtures is the use of 1095 & 15N20. This employs the use of nickel and is a mid-ranged steel in price.
There is a 416 stainless that is used for some applications of Damascus but this is not one of my picks.
Most of these combinations are folded between 180 and 600 times, it varies on the metal, and maker.
My favorite mass producer of Damascus knives is Boker. Boker is also one of, if not the favorite knife maker of choice.

You spoke poorly of stones. There are many different variations of grit in stones. I guarantee you that I can repair a broken machete or sling blade and polish it to a razor edge that will shave your face with my stones. This is another subject that you can research if you like. I only use stones for my swords,machetes,knives,etc. for honing. I may rarely make use of a flat file if the damage is extensive on some of the heavier guaged steel. I never use ceramics...AT ALL and I stay away from the senthetics and/or diamond stones.

Truthfully, the biggest problem that I see in people when it comes to sharpening steels is the lack of knowledge. It is a skill and it takes a few years to master the skill. In Japan, there is a title for a steel sharpener once he reaches the master level. To my knowledge, there is only one caucasion in the world that holds that title. You can find him on youtube with a little searching.

In short, these are only a few of the more common combinations used in the making of Damascus steel. No different???? I beg to differ. I have been in this business for quite some time. I`ve bumped into the statements that you have made from beginner knife collectors 2 or 3 times but if you stick with it and expand your vocabulary and education on the subject you will know most of these facts as second nature. If a person can sharpen steel he can sharpen steel. Whether it be with a concrete block and newspaper or a Japanese whetstone. But there is no getting away from the art of the process with the use of two hands. And, as I`ve stated, never ever will you ever see me placing one of my knives nor a customers knife, sword etc. on a belt sander nor any other such machined device.
 

Attachments

  • d3.jpg
    d3.jpg
    58.2 KB · Views: 11
  • d8.jpg
    d8.jpg
    60.2 KB · Views: 11
  • d6.jpg
    d6.jpg
    52 KB · Views: 12
Last edited:
I dont believe BOKER makes their damascus , after having long conversations in person , with actual makers of damascus , one being Chad Nichols , I have NEVER heard any damascus maker claim their damascus will out perform any other blade steel , be it s30v , ATs34 , CPM154 , etc.

Damascus is not different in the way you sharpen it is what I mean , I fully understand the way it is made , that was not my point.

Different ways to skin a cat.

I`ve bumped into the statements that you have made from beginner knife collectors 2 or 3 times but if you stick with it and expand your vocabulary and education on the subject you will know most of these facts as second nature

I have bumped into the bogus claims you have made regarding damascus being superior many times as well , usually they come from collectors who drop the coin to buy those knives ( though seldom use them ) , speaking with the makers of the knives and the makers of the damascus itself , you will find a more realistic out look , it is not better , should be equal , but no better , no worse than non-damascus steel.
I have 2 24" bars of Devon Thomas Damascus in the shop , raindrop and also ladder pattern , I have never heard him make the claims you make , nor have I heard Mike Norris or any others.

Gonna have to agree to disagree on this one , I have had long discussions with makers and collectors alike over the past 12 years in this hobby ( the last 5 making knives ) , and you ask 20 people , you will get 22 opinions ;)
 
OK

I see that there`s no point or understanding for you here so I`ll leave this one alone. If you think that there is no difference in the performance of Damascus VS. standard steels, go ahead and take it to your grave. I guess my 20+ years in the business counts for zip...LOLOL
LOL Boker makes some of the better mass production knives pal. there`s no single guy sitting in a room hammering out each of their knives. I see you looked up one of the Damascus guys. Keep searching and you`ll find that a huge majority of the knives are hand crafted in Lebanon, Japan, China, etc.etc. by regular Joes. Some of the best Damascus knives have no name on the knives anywhere to be found. I personally steer clear of several of the name brand knives. There`s only about a half dozen Damascus knife and sword makers that are actually the ones who build their knives. Look that up and see if you can find out who they are.
there is also a different approach to sharpening Damascus. There is a great deal of difference actually. For one thing, you can not make a mistake by scratching the blade of a $500-$2500 knife. Nor can you make a mistake by cross-thatching the edge. Also the layers are a big factor so the edge you make must be perfectly even so that you don`t compromise the design. etc.etc.etc.etc.
So again, you are off course.
I have no problems admitting a mistake. But, I will not bow to a person who has only argued mute non-existant points.
If you want to meet some of the guys who make the best blades on the planet just come on over to TN. We`re here at the knife show close to Smokey Mountain Knife Works. We`re at the very front on the largest table in the joint. Oh and no, I do not make knives, I sharpen knives and sale them. My friends make them and I`m here because they can`t speak english very well.
Have a nice day and Merry Christmas
I`m done here. Go ahead and spit fire. I just hope that the people here don`t place any stock in the things that you`ve stated. I`m sure that if they read my long winded posts they will be able to tell the difference between the rabbit and the bear.
 
Not going to argue with someone who won't even use their own name , come on over to CKG and we can discuss it more with some of the people at the top of the knife making field.

No fire spitting , just discussion.

If you make it to Blade , Blade West , Vegas Invitational , or SHOT Show , drop me an email and we can talk over a cup of coffee ( or whatever beverage you choose , first one is on me ).

If you do make it to SHOT , do drop me and email as there is a gathering of knife folks ( many names you will know , place is still being determined ) and I welcome you to join us. I promise it is worth it for the conversations ( and humor ).

I see you looked up one of the Damascus guys.
I didn't look up anyone , these are people I have met at shows , had emails with and talked on the phone with. It was not just a google search.
 
Last edited:
Status
Not open for further replies.
Back
Top