Quote Originally Posted by gillbot View Post
The harder the material, the higher the pressure. The only limitation is the pressure of the machine. Regardless of what you are cutting, i'm sure MOST of the materials are "softer" than water, even if it's only plastic. Brinell hardness is completely irrelevant.
you do have a limit to what pressure you can achieve. Now I am curious as to how much pressure you would need to cut thru a .25" steel plate. I will calculate that out tomorrow. Believe it or not, it will be a function of density..how about that?