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knife grinding question
burchett.donald:
Clint,
I do both ways...Jig and free hand on some applications...The jig will give you a true flat grind...With your set up you could use a very square block or object to get yourself above the wheel guard so you can reverse everything...Heavy grit will reduce heat some also...Was the file annealed?
Don
osage outlaw:
The file was annealed. I free handed the other side this morning. It turned out better than I thought it would. How fine do you get the edge before hardening and tempering the blade? I'd like to get this one ready for scales today.
E. Jensen, I got just a small discolored spot on the blade from grinding it. It wasn't burnt, just a slight discoloration. Will that ruin the edge?
E. Jensen:
Anything more than straw color is ruined, if its after heat treatment. Before it is negligable
burchett.donald:
Clint like Jenson said, you don't want to get it hot after heat treatment or tempering...It's a matter of preference for some but I will take it almost finished before heat treating...That way all I have is some light work to remove. The knife in the pic is just out of 1900 degree kiln, heat treated and very close to finished as far as stock removal goes...The edge is almost ready for a stone at this point...Like I said matter of preference...
Don
osage outlaw:
Thanks for the help guys. I haven't heat treated it yet. I've been reading about normalizing the metal. It said to bring it up to a non magnetic temperature and then let it cool off to room temperature 3 times before quenching it in oil. Does that sound about right? I have a toaster oven to temper it in.
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