This is the process by which i forged a knife from an old Nicholson file. enjoy.
From this point forward you are forewarned; forging is a dangerous activity. it includes high temperatures, heavy hammers, and lots of smoke. always work in a well ventilated area, use good leather gloves, and wear eye protection. above all use your common sense, and you will be ok...probably.
Step 1: coal, or lack thereof
maintaining a coal fire can be a challenge. unfortunately, i have no coal. so i use hardwoods and lots of forced air to attain the heat i need. it uses a lot of fuel, but it works.
select your steel now; preferably high-carbon (old files, car springs, (leaf or coil) lawnmower blades,old machete blades, etc. and put it in your coal bed.