grinding question

[stringstretcher]

When using a diamond grinding wheel, do you have to use water?  If so, does anyone have a basic plan to build a grinder?

[mullet]

  You need to use water or you will lose your diamonds pretty quick. Mine is homemade. Buy a 50 grit wheel and mount it on a side mount motor, over a Tupperware tray with water and a small lapidary spraypump under the wheel.

[Justin Snyder]

Eddie, what the heck are you thinking. PICTURES!!!!!  Justin

[mullet]

  I'll take them tomorrow, My pan is made from sheet metal but looking back Tupperware would be easier.

[stringstretcher]

would love to see pictures of you guys set up

[mullet]

  Here you go, it's pretty simple.

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[Otoe Bow]

When I first started reading this post, I thought I knew what you guys were talking about, but after seeing the pictures I'm not so sure.....diamond grinding wheel?     Is this for sharpening steel or does it have something to do with shaping rocks. 

It kind of reminds me of my Tormek water stone system.  Is this what you showing Eddie?  Unreduced, that wheel probably spins at about 1800 rpm doesn't it?  Water is a must at that speed for about anything.

Mike

[mullet]

 Mike, it's for grinding preforms when knapping FOG.Between this and a diamond saw you save a lot of rock.

[jamie]

fog?

[DanaM]

fog?

In my business it stands for Fats,Oil, and Grease

[D. Tiller]

One day I too shall have those in my shed! One day! (sigh!)   

[Hillbilly]

FOG=Flake Over Grind. That's where you saw a slab and shape it like a point, grind it to a lenticular cross section, and then finish it with a couple passes of pressure flaking. I always kid Eddie about his FOGging and he kids me about beating up a five-pound rock with percussion to make an arrowhead. It's a modern knapping technique, but actually has historical roots. It was used by the Egyptians to make Gerzian knives and by the Danish on some styles of their daggers-they percussioned preforms out to shape, then hand-ground them smooth on sandstone.

[brian melton]

           I would like to add, that although the initial cost of a grinder may seen high.....some rock isn't cheap, and you will easily make your money back on rock that is not wasted, if used right they last a long time. I recomend #60-#100 grit wheels.

          I have also found you can use a wet saw blade for grinding, if held at a 45 degree angle to the blade. This is something that one would have to experiment with to get the hang of it, but it works quite well!

Brian

[mullet]

 Brian, after we talked, I tried it and it IS fast.

[Otoe Bow]

fog?

In my business it stands for Fats,Oil, and Grease

Dana you're kill'n me.