Backcountry Pilot • Knives

Knives

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Re: Knives

Hammer wrote:Check Japan Woodworker for abrasives. Aluminum oxide powder cuts much faster than any paste-based abrasive crayon and leaves a fantastic edge on most steels. If JW doesn't cary it anymore, search for this stuff here: http://www.woodisgoodco.com/strops.htm Aluminum Oxide Powder.

A little goes a long ways. That little bottle should last a couple years at least. Great stuff...I strop regularly with it and only use a stone a couple times a year, even with regular carving of hard woods.

what kind of strop do you use? how messy is the powder?
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Re: Knives

cstolaircraft wrote:
Hammer wrote:Check Japan Woodworker for abrasives. Aluminum oxide powder cuts much faster than any paste-based abrasive crayon and leaves a fantastic edge on most steels. If JW doesn't cary it anymore, search for this stuff here: http://www.woodisgoodco.com/strops.htm Aluminum Oxide Powder.

A little goes a long ways. That little bottle should last a couple years at least. Great stuff...I strop regularly with it and only use a stone a couple times a year, even with regular carving of hard woods.

what kind of strop do you use? how messy is the powder?


I use the wood is good strops...the big one and home and the little one for travel.

http://www.woodisgoodco.com/strops.htm

The powder gets rubbed into the strop and turns the strop black. There's a little mess when you apply or reapply it, but after that its minimal. For travel I put the strop in a paper envelope so it doesn't mark up things that come into contact. I use double stick tape to put 5000 grit sandpaper on the back of the strop and use that first if the edge got "really dull" (a truly dull edge cannot be stropped back into sharpness...the strop simply doesn't remove enough steel to resurrect a damaged edge).

Flexible strops like those used for straight razors are not ideal for regular knives unless they're hollow ground, like some high-end skinning knives are. It has to do with how the strop interacts with the angle of the edge.

The strops will last forever unless you nick them with the blade and made a big divot.
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Re: Knives

Not sure if you'd consider him a "back-country" pilot, but Commander Hadfield was on the radio here recently, which drew my attention to this quote:

“we broke into Mir using a Swiss Army knife. Never leave the planet without one.”
― Chris Hadfield, An Astronaut's Guide to Life on Earth
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Re: Knives

I just got a new knife CRKT so far i like it but it is a little larger then I wanted. I have been trying to grasp the concept of the different grinds my new knife is a CRKT fossil with a hollow grind, my old knife a old timer trapper I believe is a flat grind but i don't see a difference in them. anyone help me out?
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Re: Knives

cstol,

A flat grind blade is a straight line from the back of the edge to the spine (back) of the blade. If you put a straight edge along the side of the blade, the entire blade would rest against the straight edge. A hollow grind knife has a concave along the side of the blade. If you put a straight edge along the side of the blade, the only parts of the blade that would contact the straight edge would be the edge and the spine. Some hollow grinds are deeper than others. A hollow grind knife has something like a shallow backwards "c" along the length of the side of the blade. The bottom of this link shows some pretty good drawings of different types of grinds:

http://www.beebeknives.com/html/knife_anatomy.html

Frank
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Re: Knives

Hammer,

I have a real passion for knives and have quite a few. After reading your postings and looking at your knives I've decided that I need to add a puuko style knife or two to my collection. I'll probably buy two Lauri blades to begin with, one progressively tempered and one high carbon. Both will be 2.75 to 3.75 or so. Understanding that knives are very personal tools, I have a few questions for you.

-The source I found for Lauri progressively tempered blades stocks these two that look good to me: Lauri-PT-95; (95x19x3.25mm) and Lauri-PT-90; (90x27x3.25mm). I really like the looks of your knife on page 2 of this thread with the red accented handle. Based on your experience would you choose one over the other for an all round blade?

-Given one of the two progressively tempered blades above, what blade would you choose for the second knife?

-The knives of this style in your pictures often have brass at the front of the handle. Did you buy the brass from a supplier or make your own? If you made your own how thick was the stock?

-Did you make your own handle vise/press or buy one from a supplier? If you made your own, what did you make it from? Would you recommend making or buying a vise/press?

-What adhesive do you use to attach the handle pieces to each other and to the blade? Do all parts (including brass) get adhesive?

-How much larger than the tang do you make the holes in the handle pieces? Some sites recommend a fairly large space for more adhesive.

-The tangs on the progressively tapered blades are quite long when purchased. Some traditional styles seem to have the tang peened over at the butt/pommel like a Rapala. Your knives seem to have finished wood at the butt of the handle. Do you just cut/grind of the extra length of tang? How long do you leave the tang?

-Have you purchased and sheaths from suppliers? Any that you'd recommend? If not, do you want a Kydex job?

-Any "how to" books or sites you'd recommend to get started in this hobby?

-Any chance that you'd post a group type shot of all your puukko style knives with as much information as possible about blades and handle materials.

If you type as slow as I do (doubtful) and would rather do this by phone, pm me and I'll send you a telephone number. Although I'm sure others would be interested in at least some of the answers to the above.

Thanks.

Frank
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Re: Knives

fshaw wrote:cstol,

A flat grind blade is a straight line from the back of the edge to the spine (back) of the blade. If you put a straight edge along the side of the blade, the entire blade would rest against the straight edge. A hollow grind knife has a concave along the side of the blade. If you put a straight edge along the side of the blade, the only parts of the blade that would contact the straight edge would be the edge and the spine. Some hollow grinds are deeper than others. A hollow grind knife has something like a shallow backwards "c" along the length of the side of the blade. The bottom of this link shows some pretty good drawings of different types of grinds:

http://www.beebeknives.com/html/knife_anatomy.html

Frank

Reading that article made things come together! Thanks buddy
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Re: Knives

fshaw wrote:Hammer,

I have a real passion for knives and have quite a few. After reading your postings and looking at your knives I've decided that I need to add a puuko style knife or two to my collection. I'll probably buy two Lauri blades to begin with, one progressively tempered and one high carbon. Both will be 2.75 to 3.75 or so. Understanding that knives are very personal tools, I have a few questions for you.

-The source I found for Lauri progressively tempered blades stocks these two that look good to me: Lauri-PT-95; (95x19x3.25mm) and Lauri-PT-90; (90x27x3.25mm). I really like the looks of your knife on page 2 of this thread with the red accented handle. Based on your experience would you choose one over the other for an all round blade?

-Given one of the two progressively tempered blades above, what blade would you choose for the second knife?

-The knives of this style in your pictures often have brass at the front of the handle. Did you buy the brass from a supplier or make your own? If you made your own how thick was the stock?

-Did you make your own handle vise/press or buy one from a supplier? If you made your own, what did you make it from? Would you recommend making or buying a vise/press?

-What adhesive do you use to attach the handle pieces to each other and to the blade? Do all parts (including brass) get adhesive?

-How much larger than the tang do you make the holes in the handle pieces? Some sites recommend a fairly large space for more adhesive.

-The tangs on the progressively tapered blades are quite long when purchased. Some traditional styles seem to have the tang peened over at the butt/pommel like a Rapala. Your knives seem to have finished wood at the butt of the handle. Do you just cut/grind of the extra length of tang? How long do you leave the tang?

-Have you purchased and sheaths from suppliers? Any that you'd recommend? If not, do you want a Kydex job?

-Any "how to" books or sites you'd recommend to get started in this hobby?

-Any chance that you'd post a group type shot of all your puukko style knives with as much information as possible about blades and handle materials.

If you type as slow as I do (doubtful) and would rather do this by phone, pm me and I'll send you a telephone number. Although I'm sure others would be interested in at least some of the answers to the above.

Thanks.

Frank


So I'm no expert knife "maker", but I'll tell you what I know. It's important to keep in mind that it's all good...there's no correct or incorrect handle...if it feels good in your hand then that's all that counts. Cosmetic perfection is nice, but your first few knives are going to have cosmetic flaws. No big deal...it adds to the character of the knife and they become quite endearing. Also, it takes a surprising amount of time to put a handle on a knife, at least for me. Don't rush it.

The 95mm Lauri progressive temper blade probably cuts as well or better than any other blade I've ever used. Super nice. The smaller blade is also excellent...just go for which one you like the looks of, or get them both and give someone the one you don't like as much.

For a complimentary knife I really like the Puronvarsi rhombic blades. Just pick one that looks good to you...you can't really go wrong. Or one of the EnZo blades...the trapper being my favorite. Putting a handle on a full tang blade like the trapper is somewhat easier than handling a stick tang blade if you don't have a keen understanding of soldering metal.

There are a few ways to handle a stick-tang knife. A good, short instructional is found here: http://www.thompsonsknives.com/knife_instructions.html

The things I've found that make the biggest difference in the final outcome are as follows:

Soldering the brass or nickel bolster to the blade. I know very little about soldering but even I figured it out. Barely. I won't give instruction because I suck at it, but eventually I get it done. Couple things that will help are to stick the blade in a potato so it doesn't heat up and loose temper, and flatten the bottom of the bolster before you solder it on. I buy "matching" bolsters from Thompsonsknives when I order the blades. They don't really match...a lot of file work is required. I've often thought a bolster made out of a coin would look nice, but I've never done it.

It's important to get the solder right, since that's what keeps moisture from getting in the handle and rusting the blade at its weakest point.

Since the tang is wide at the top I drill two parallel holes and then chisel out between them. Whether this is any stronger than just drilling a large hole I don't know. Probably not.

If you're making the handle out of multiple pieces of wood it's critical that the ends be sanded perfectly flat and that they will slide onto the tang and match up tight against each other. Also, since the bolster is soldered on, the top piece of wood has to be custom sanded to fit flush against it, since it's not likely to be perfectly straight and true. Getting the bolster soldered on and all the pieces shaped to fit against each other before gluing is a lot more work than shaping the handle. I use a piece of sand paper on a piece of glass and rub the ends against it in a figure-eight motion to flatten them.

Handle material can be anything you want. I've even seen handles made out of nothing but layers of cork. I think olive wood is probably the prettiest handle material. Lignum vitae is probably the toughest wood, but heavy. If you're lucky enough to find some CCL knife handle oil, grab it. It gives the best handle finish I've ever seen. Otherwise use a combination of tongue oil and bees wax and really rub it in good. Don't use any sort of hard finish...it's not nice on a knife handle.

While I've been tempted to peen the end of the tang over (which is traditional, since Vikings didn't have Epoxy and peening is what kept the handle attached), I haven't done it. If you were going to do it I'd make sure you had a hell of a good vice to keep the blade from slipping, and I'd peen the tang before the glue set up. For myself I just cut the tang off wherever I think I want the handle to end. I tend to go for longer handles rather than shorter ones because I have large hands.

When I glue the pieces onto the tang I first clean the tang, bolster, and wood end grain with acetone. I use regular epoxy, and instead of a vice I just use a few small bar clamps. I believe, and others tend to agree, that if you clamp the pieces too tight you just squeeze out most of the epoxy and weaken the bond. Even with 5-minut epoxy I let it set overnight before disturbing it.

If your end piece isn't drilled all the way through, put a hollow coffee stir stick in the hole before adding epoxy so the air can escape and the epoxy will run all the way to the bottom of the hole. Making sure that all gaps are full of epoxy is probably one of the more important considerations for structural integrity.

As for sheaths...There are some generic sheaths available from thompsons. I've found the stitching to be prone to unraveling so I'd suggest gluing it if you go that route. Probably best to make your own. Here's a decent tutorial:
http://www.thompsonsknives.com/nordic_s ... tions.html
and another
http://www.knifeforums.com/forums/showt ... tp/0/all/1

I make kydex sheaths and for the most part they suck. I thought kydex would be easy to work with, and it is if you want a piece of crap. It's surprisingly difficult to make a good kydex knife sheath. Regardless, I really dislike them for puukko knives because, well, it just aint proper. It's fine for a Fallkniven F1 or Glock, but just not right on a puukko.

I wish I had pictures of all the knives I've put handles on, but I gave most of them away as gifts and never took pictures. Same with all my spoons, now that I think of it.

Putting a handle on a blade is great fun, and the end result is usually a much more useable knife than you can buy off the shelf. The knives I "make" aren't anything special, but they fit me and I enjoy using them much more than any other knife I own.
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Re: Knives

Finally got around to putting a handle on my long blade EnZo Trapper. I was going to use redwood burl but screwed up the first set of scales and the handiest piece of replacement wood was mahogany, so I went for the matching set.
Image


I left the handle pretty fat compared to my other Trapper. I wasn't unhappy with the first handle but figured I'd try something beefier. It's easy enough to file it down if I don't like it.
Image

Whether I'll love the steel is yet to be determined, Usually carving a couple spoons tells me all I need to know about the steel, but I haven't done that yet. It sure takes a good edge though. Definitely sharp enough for a pre-vasectomy dry shave, and I don't make that statement lightly. Don't worry, I won't post pictures to prove it.

I think I'm really going to like the slightly longer blade. Love my original Trapper though I do, I always wanted just a bit more reach...not sure why.
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Re: Knives

Looks nice!
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Re: Knives

It's been brutal weather here lately. High of 73 today, but tomorrow might only be 71. I took advantage of the warm day to whittle up five gallons of fatwood shavings. Mostly fir, some pine. Makes lighting the stove fire almost as easy as throwing a switch.

Chopping straight-grained sections out of the assorted fatwood chunks I have stockpiled and then whittling them down to shavings took about an hour. I used my EnZo Camper in O1 carbon steel. The handle is black walnut from scraps I had laying around.

The Camper used to be a favorite cary knife, but I found it just a little large, and the geometry doesn't cut wood as well as some of my other knives. It's a better camp-kitchen or butcher knife, but I don't do that sort of thing very often. So now it rides in the glove box of the FJ Cruiser. It was the closest fixed-blade handy when I decided to start whittling, and the only one that didn't require me to remove my gumboots and go inside, so that was that.

Whittling up a bucket of shavings is flat out fun for me, and that fatwood burns like an unwed mother in baptist hell.

Image
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Re: Knives

Hammer wrote:and that fatwood burns like an unwed mother in baptist hell.


We need to hang out and share some beers some time. I'm curious what other random and hilarious turns of phrase you can come up with.
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Re: Knives

Well, I've always wondered how well a single mother would burn in Baptist hell, so I decided to go find some fatwood. Turns out, I live in one of the best places for harvesting fatwood. About 100 years ago the surrounding forest was logged of massive Douglas Fir and you can't drive ten minutes from my house without seeing a dozen rotting stumps.

For a guy that measures personal well being in terms of cords of firewood, with 4 chainsaws and innumerable axes, discovering fatwood is like winning a lotto. It has become a new obsession. My dogs don't play well with other dogs so I need to find some private wilderness every day. Now I bring an axe and a chainsaw and while they run around I go after a stump and bring at least one home every day.

It has been raining nonstop for the past several weeks, and the fatwood I'm harvesting is absolutely saturated with water. I figured it would be a great test to do a feather stick. I cheated a bit and used a match instead of flint, but the resulting instant roaring fire gave me a sense of wellbeing that has lasted several hours now.

I've always been a survival/fire nut and regularly test my firestarting skills in the woods. Fatwood is, by far, the best naturally occurring firestarter.

Thanks to this thread and BigRenna's way with words. And to Bark River knives and Husqvarna axes!
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Re: Knives

I've learned a lot from this thread. I have never been able to get a knife razor sharp and always thought it a bit of a myth. After reading this I decided to better educate myself and try to get a knife really sharp.

I started with a Japanese water stone. I got it from Japan Woodworker, a King Ice Bear combination stone with one side 1000 grit and the other 6000. I followed the instructions and got my Buck 55 sharper than it had ever been. Sharp, but it wouldn't shave hair.

I read everything written here about strops, did a little research and decided to give it a try. I bought a little jar of Amuminum Oxide powder from woodisgood. Unable to find their website, I found their product on Amazon and bought it even though it was more expensive (but had free shipping to offset the cost).

Then I ordered a strop. After some research I found http://stropman.com/main.sc. I cant recommend them enough!! (no connection, just a happy customer). I messed up my order at first, ordering a strop and two stropping compounds but I somehow separated them into two orders. They emailed me and told my that by doing that I cost myself an extra $3.00. They offered to either cancel my order and let me re-order or they would toss in an extra stropping compound. I didn't need the other stropping compound so I took them up on their offer and canceled and re-ordered. They explained up front that they make every strop to order and were very busy resulting in about a month backlog. No problem for me. I ordered the HD Compact Leather strop and patiently waited.

My strop was actually shipped in about three weeks so a little earlier than expected.

The fit and finish is superb! They really do make a nice product. The leather was perfectly fitted to the handle and the quality of the leather seems excellent.

Today I went to work stropping my little Buck 55 and in a few minutes was shaving hair off my arm! I used the Aluminum Oxide powder on one side of my strop and the green compound on the other. In my very limited test (first time stropping anything) I found that the Aluminum Oxide powder seems much superior. I think I actually dulled it a bit using the green compound and went back to the powdered side to put the razor edge back on my blade. I'm sure my technique can improve so I'm optimistic that it will only get better.

My Leatherman C33T folding knife (per Z's recommendation) has been shipped and should be delivered in the next couple of days. I'm eager to put a razor edge on it!
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Re: Knives

Sixty five years ago my Father took me on the first of many Deer hunting/camping trips. Before the season we always drove out to the “old stump farm”, a wood lot where he had been logging and harvesting firewood for years. We would locate some old stumps, cut a few pieces of pitchwood with an ax, wrap the pieces in toilet paper, then in waxed paper tied up with a string or rubber band. The bundles, as well as, some matches dipped in wax were put in our wool coat pockets. We could always start a fire when needed, rain, snow, wind, didn’t matter. Never heard the term fatwood, had to look it up, guess pretty close to our pitchwood. My Father always advised, never go into the woods without one of those bundles. Still carry one when flying or out and about, although, now it’s in a plastic ziplock baggy as well.
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Re: Knives

Not to drift here, but what is the fastest, easiest, or best method to sharpen a filet knife razor sharp?
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