/diy/ - Do It Yourself

>>969380
>>969555

A buddy of mine grand father told my of a simple way to harden a railroad track.

You'll need track, 20g used diesel motor, shit load of hardwood, forge blower or shop vac that blows, 5-6 feet of exhaust pipe or 2in cast iron pipe, two 6 foot of cast pipes or 5/8 stock, steel 55g drum cut in half for the motor oil

>torch and grind out horn on foot long piece of track, very important to do before hardening. If you can surface the track do it now as well
>dig 3 foot deep by 3 foot across hole with a trench for the exhaust pipe to the center of the hole
>put the pipe in the trench, make sure the end out of the hole is access for the blower
>fill the hole with hard wood and light
>run blower as needed to keep fire burning hot
>keep adding wood untill you have a full 3 foot deep bed of coals burning, this should take a few hours if you have good wood
>drop track in coals track down
>turn blower on and continue adding wood
>when the foot is light orange, the track will be yellow
>use the pipes/stock with a buddy to pinch the track and lift it out
>CAREFULLY lift the track and walk it to the drum of ised diesel engine oil
>DROP the track in the oil, do not hesitate, if you set the track in the oil it'll boil and catch fire. You will get severely burned.
>Wait about an hour to an hour and a half and fish out your new anvil

I could barely grind mine after hardening it this way, i should have let it get hotter but I'll know for the next one.

>>949578
No, you should read it as they got hard as fuck. Grinding wheel polishes it more than grinds.