Introduction: How I Made a Knife

This is a Photo diary of a knife I made today.

This is my first knife and my choice of design was limited to the size of good scrap steel I had in my shed. I will probibly use it in the kitchen for meat and cooking while camping. 

The steel is a old 7' saw blade that I had lying around. I t was a bit small so I had to cut the shape out of 2 pieces and weld them together. This is a full tang knife and the timber still needs to be treated.

One mor thing it cost me $0. Just gas and sandpaper that I had the rest is recycled and re-used.

Comments

author
A flyin muffin (author)2012-07-25

Great knife. I just made one and am about to post an instructable for it.

author
Ironwolfcanada (author)2012-05-24

Great effort for a first knife!
I've made a few from scratch (stock removal),
but have been designing them & customizing them for a long time.
Yours is a good functional design.
I'd suggest having a look at Wayne Goddard's book
$50 Knife Shop; it's loaded with great ideas for building forges on the cheap!
Keep up the good work.

author
bobthebuilder728 (author)2011-10-14

Nice knife! I make them from old saw blades too, take a look at mine

author
67vj (author)2011-08-17

Great Job. If you need supplies or materials for knifemaking try Jantz Supply
knifemaking.com

author
flamesami (author)2011-08-01

how do you power that forge? is it charcoal, gas or electric? I reallylike your knife, way better then my first one (though it probably doesn't count- the ones I heat-treated don't have/need handles and the one i handled I just shaped a bit... Did you normalize the steel before heat-treating it, or did you anneal the steel before you worked it?

author
HanzieO (author)flamesami2011-08-01

My 'forge' is just 3 bricks and a MAPP gas blowtorch and it didnt work real well. Do not try this forging method its crap. There is some real easy forges on here to build and I will make one for the next blade.

The first go I kindof got it red but not hot enough and it cooled slowly while I was readjusting my forge. So I guess that is the normalize step. The second time I got it red hot and dropped it in engine oil blade first.

I didnt feel the need to anneal the steel as I used all power tools and no hand tools when shaping the blade. And it wasnt that hard to start of with.

author
flamesami (author)HanzieO2011-08-09

yup! that's annealing (bring piece to red hot, let cool), it's important if you've put stress on it during making (used power tools/forged) cos it releases tension and avoids microfractures that weken the structure and can make it crack when quenched

author
HanzieO (author)flamesami2011-08-09

I almost didn't do the annealing because I thought it was only for ease of shaping the blade. So I guess I was lucky the forge failed on me the first time. Next time I will make sure I do it first. I'm building a kick arse gas forge in a old 9kg propane bottle with fire clay and refractory bricks. The hot chamber will be 120mm x 120mm x 200mm with about 100 to 150mm of insulation all the way round.

That should make the whole heat process much simpler.

Thanks for the advice.

author
flamesami (author)HanzieO2011-08-12

as far as I can remember right now, the routine is anneal(bring to red hot and let cool in ash/vermiculite), shape, then normalise (heat to red, then let cool overnight (aligned north-south if you feel like it)), quench and temper, then sharpen and put a handle on it ... (please note that this is what I've read and I'm not qualified in any way)

About This Instructable

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Bio: I am a electrician/fitter that install, commission and test new Escalators. I only have a tiny shed to create my inventions in.
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