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Custom Knives, need one? Options
maldon007
#1 Posted : Monday, August 15, 2011 2:02:25 PM
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So yeah, I'm gonna start making knives to sell. This last one came out so well, and I can heat treat now with ease.

If anyone has a knife design in mind, or one you have seen and want copied, it will be cheap... pretty cheap.

Anyway, the design will have to fit in my little blanks, unless you want to buy some steel... though I may buy some bigger stock later. Depending on size/complexity, it will probably be between $25 and $35. That is for a high carbon steel 3/16" thick, up to 1 3/8" wide, up to 9.5" long, custom designed & built, differentially heat treated knife(not sure of hardness rating, but a quality file skips off/will not bite), sharpened to shaving sharp.

So post any ideas you have for a knife & I will let you know if I can do it!
NinjaDave
#2 Posted : Monday, August 15, 2011 5:23:15 PM
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Lee
#3 Posted : Monday, August 15, 2011 5:24:14 PM
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We'll talk.
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redfireant3
#4 Posted : Monday, August 15, 2011 6:37:22 PM
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hmmmm damn hmmmmmmm

can you make sheaths/holsters too?

Jeremy
#5 Posted : Tuesday, August 16, 2011 12:57:57 AM
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Do you make them full or partial tang?
maldon007
#6 Posted : Tuesday, August 16, 2011 1:11:24 PM
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Sheaths, I have only made a few, none leather. I made a few from thin PVC, kind of like a "tactical" style, but white... I can do leather work though, just dont have tools/material, so if you buy, I will make.

Full tang only so far, dont see a reason to have a smaller tang, really.

The one I just finished is my first heat treated knife, but I have made a few from scratch before... 7 or 8 maybe? This one is what I would call a survival knife/camp knife. 9.5" length, 3/16" thickness, 1 3/8" wide at the guard.


Drop point design, convex/axe grind, compound grind angle for stronger tip geometry.


Full tang, wide pommel with lanyard hole. Handle wrapped in 12' of 550lb. test paracord.


Rounded finger groove for choking up & doing fine work, also protects hand from grip slide when stabbing.


Rounded spine with ridges for thumb grip & comfort.


Spine near tip flat ground for large surface to baton, as well as sparking ferro rods. Also strengthens tip.


And she is pretty sharp-


Edge retention has not been tested, but a quality file skips off the edge like a flat rock on water, so it is plenty hard. I am trying to send this one to a big shot knife guy to review... more later on that.

Here is the heat treat-








KatieLJ
#7 Posted : Tuesday, August 16, 2011 2:47:06 PM
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How much? and could I get a different color chord handle?
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maldon007
#8 Posted : Tuesday, August 16, 2011 4:39:37 PM
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I only have light & dark green, but I can get other colors no problem... I can do wood to, I get flooring samples fairly cheap and use those... pretty cheap way to get semi-exotic woods.

For that one (or a similar one), with the either dark or light green cord, $30... for a different color cord or wood, $35.

By the way, these need to stay oiled or they will rust (trade off for the stronger/harder steel), except for the handles, which are painted under the cord... Woden handles would only need oil on the edges where the metal shows...

Or the whole knife can be painted, this keeps it rust free, BUT the paint rubs off when used, so it will have wear spots quickly, which may rust but usually not too bad since these would be spots that get worn & the wear keeps the rust down.

If anyone wonders, why the rust? It is the high carbon content of the steel, which is needed for strength/edge retention... Think about your car's break rotors & how they rust after a rain & a day sitting in the driveway, or bridge steel that needs constant painting to keep from rusting. The strongest steels usually rust.

What about stainless steel? It has much less carbon, and added nickle, so it doesn't rust easy. But this makes it weaker, though it still has pretty good abraision resistance... Stainless is good for stuff you cant keep oiled, have to throw in a dishwasher, put on a boat, etc. But it is a compromise that makes it lose an edge quickly under rough use & bend when over stressed.

High carbon steel is stronger off the bat, and once heat treated, is much harder and a little more wear resistant than stainless. The way i heat treated this blade is called differential heat treat, meaning I hardened the edge of the blade more than the spine. This helps it keep an edge but not get brittle on the rest of the knife. The handle is not treated at all, so it retains the original flexibility. Then I tempered the steel by puting it in a regular oven, at 400 for an hour, then let it cool in the oven, without opening, for another two hours. This removes some of the stresses in the metal and keeps it from cracking when dropped/banged into something.
gatorzingo
#9 Posted : Thursday, August 18, 2011 10:46:28 PM
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High carbon steel maybe stronger but it is more brittle and easier to chip or roll the edge. Easier to sharpen though.

Stainless is harder than carbon steels, but it is more difficult to sharpen.

Tool steel is good to work with, retains a good edge, although it is easy to destroy.

Don, what you are doing is a craft, a skill that takes many years to develope. However, it may become essential one day WTSHTF. I envy you for taking on this task of knife making. You are the MAN! A fantastic source for knifemaking is www.bladeforums.com

I am putting in my order for a leaf spring steel samurai sword. It will not be truely a katana since it will be made of only one type of steel, but this American Kensai will take it. Anyway, how about it?
maldon007
#10 Posted : Friday, August 19, 2011 10:06:34 PM
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I would have to make a real forge, and get an anvil, to straighten the steel... Might be cheaper to buy a long bar or tool or other good steel, that is flat & cut it from that. But I will look into the spring steel... maybe flat pieces can be found...


Looking into making my own micarta (sp?) as well... In a new way *wink*
maldon007
#11 Posted : Saturday, August 20, 2011 10:23:31 AM
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gatorzingo wrote:
High carbon steel maybe stronger but it is more brittle and easier to chip or roll the edge. Easier to sharpen though.

Stainless is harder than carbon steels, but it is more difficult to sharpen.

Tool steel is good to work with, retains a good edge, although it is easy to destroy.




Slight correction, edge rolling has more to do with softness, and heat reated carbon steel is usually hard enough to not roll... but yeah, chip is more likely. Stainless is not so much harder than carbon steel... Some are/some are not, as in- Looking at the different grades/types of steels, the hardest stainless grades are not as hard as the hardest heat treated high carbon. But in general, high end stainless can be tougher at a similar hardness.

Also, tool steel will hold an edge well, IF it is heat treated at the edge... Basically knife steel is a balance between hardness and toughness, and matching the edge geometry to the given steel's characteristics...

Or just spend millions on an exotic mix of elements and invent ways of machining & sharpening this magicaly tough steel into a knife, and you won't need to worry as much about the weak points of "regular" steels... INFI snob!!! :P
maldon007
#12 Posted : Wednesday, October 12, 2011 10:54:22 PM
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Just finished this little jabber yesterday. Kind of a bush knife/Mora, but thicker kind of deal. Heat treated, medium carbon steel (pry bar)... The thing I like best is the handle material, it's basically micarta, but wrapped instead of made into plates/scales. About 5 courses of nylon cord, with resin applied between each, then sanded to shape after it dired.













It's a prize for a contest on the zombie squad forum, so sorry, you no can have!
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