First off I consider knives to be tools NOT weapons. Please use them responsibly, every time someone uses a knife as a weapon it makes it more difficult/Illegal to carry these very useful and potentialy life saving devices. (that is a bit of an extreme example)

Next a little about this project: It is a small knife (2in handle, 1.5in blade), however it can be scaled up. It also features a pocket clip that can be used as a money clip. It uses a lock of my own design (I think), and like most of my other projects, it is built out of scrap.

An equivalent product would be something like this http://www.mec.ca/product/0902-080/opinel-traditional-8-stainless-steel-knife/?f=10+50507

In terms of sharpness and toughness, it is equivalent to most "Stainless Steel" knifes.  If you don't know knifes, and S30V and 420HC are just gibberish,  then it it probably the same as the pocket knife you have (or used to have).

The opening picture shows three pocket knives that me and my brother built from an old mountain bike disk.  The smallest is the one I will be featuring in this instructable. The larger wooden one is much simpler and does not lock. The all metal one also doesn't lock (because of our sub par metal working skills) and it is also not sharp as sharpening the inside edge of a circle is difficult.

Thanks for reading.
Also this is an entry in the "I Could Make That Contest" and if you like it all votes are greatly appreciated.

p.s If you are looking for a pocketknife built out of high quality materials, that will look a bit more professional. I am currently in the process of making and testing a forge, and then ordering and making a S30V and Micarta folder. So stay tuned. In the meantime I recommend This instructable to get started.

Step 1: Materials and Tools

Things you'll need:
Disk Brake: Disk brakes work well for making knives because they have already been heat treated at the factory. And depending on how hard they were used they have already been annealed.  This saves you the trouble of building a forge. (beware it is very hard and may dull out your hacksaw and/or drill bits)
Hack Saw: Used for cutting the metal. if you have never owned one they are relatively cheap. Here is how to use it, it is NOT the same as a wood saw.
Coping Saw: Used for the creation of handle scales.
Vice: Multipurpose a shop essential.
Scrap Wood: If you have you're choice use something hard and nice looking.(Insert sexual joke here)  Mine had a habit of splitting. Best size is probably about 6in by 4in and about 1/8in thick.
Grinder: Not sure what grade of stones are on mine.
File: This is the most important piece of equipment if you don't have a grinder. It will take longer but it's cheaper and will get the job done.
Drill: Preferably electric but a hand drill will work, albeit more slowly.
Drill Bits:  The best will be Titanium Carbide but I think I just used standard ones.
Sand Paper: One rough maybe 100 or 80 and another thats fine 220 300.
One Bolt and Nut and Washer Combo: This will be used as the pivot screw for the blade.
Safety Glasses: the eyes are immeasurable more expensive then wearing some uncomfortable glasses while using the grinder.
Sharpy or Pencil: To mark the blade and scale shapes.
Thin sheet metal: If you can bend it by hand and it stays then it is good enough. I think mine was a piece of air duct or something.
Hammer and counter set:  Hammer is essential counter set not so much but it makes it easier to place holes on the disk brake.
Finishing Nails: Used to secure the handle together.  if possible long air nailer nails will work better.
Tin snips:  not essential but definitely easier to cut the sheet metal with than the hacksaw.
Sharpening Stones:  These will make a peice of metal into a knife, you want at least an auto parts store dual whetstone, however if you are interested in knifes either in the kitchen or hobby than a good set will serve you well. I used a old no name brand stone that normally sharpens axes, and then a couple of high quality made in japan hand me downs.
Dog:  again not essential, but works wonders to ease frustration and chew finished handle scales into saw dust :)

I might try this. I might make a hatchet out of a mtb brake and this. Any other locking mechanisms I could use?
You can do a traditional liner lick as well, if you plan on buying a price of titanium, liner locks don't work all that well unless it is made out of a price of spring steel or titanium. This Instructables has a great method for creating a liner lock folder. You could try a locking back style lock but I don't think it will work because of the curvature of the disk brake http://m.instructables.com/id/How-to-make-a-liner-lock-folding-knife/
As in it covers the gap when the knife is open to stop it from moving and when force is applied it will move and allow you to put it in, when it is in the metal sheet pressed against the blade locking it in place
Yeah that was the plan, didn't work entirely though. The metal that I used for the lock has bent a bit more than it should have so the blade can rock back and forth slightly. However if a proper material wan used (titanium) then I think it would work quite well.<br><br>Thanks for asking<br><br>-Lucas
Does the lock mechanism act like a kind of spring

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Bio: Second year engineering student studying at the Beautiful Okanagan campus of The University of British Columbia. I like to tinker with electronics and meddeling with ... More »
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