Suggestions to cut dry rock flat?

[gherewolf]

I’m loving all of the dry rock that is cut to be made into shelves. I have some rock already, how would I go about cutting this to make my own?

 

[jeffrey750750]

I saw a video with brs cutting it with a hand saw. Didn't look too hard

 

[Cell]

I would assume a diamond saw blade designed for rock cutting to start, but I'm not sure how what kind of surface it will leave, totally smooth or something rough that needs sanding/polishing etc..

 

[jeffrey750750]

I believe it was a hacksaw, an unpainted blade

 

[Mical]

I used a cutting wheel on a powered hand grinder. I had a large "tower style" rock but the bottom was rough so I did a flat cut across bottom - it took minutes and worked great.

 

[gherewolf]

Yes, thank you all. A quick “powered” solution would be preferable. I was thinking of running through a 12” or so rock once through a blade but can’t find anything that wide that isn’t industrial.

 

[delv2323]

It depends on how hard the rock is. What rock are you using?

 

[Ef4life]

The frag band saws would be able to cut through some smaller rocks easily, 6” would probably be the biggest you could do.

A 14” diamond concrete cutting saw will only cut through about 5-6” of concrete. So that would be about minimum size needed to cut through most rocks in one pass though I wouldn’t recommend that option. A 7” grinder with a 7” diamond blade would be able to cut about 1/3-1/2 way through a lot of aquarium sized rocks, then flip it to get the rest. A 4 1/2” grinder with diamond blad could get through partially and then you could chip off the stuff with a hammer, then keep attacking it with the grinder till you get a flat bottom.

 

[Redshowdog]

I used a sawzall with a wood blade. It worked pretty well but I had to stop and wet it all down to cool it off. Started with a diamond blade but it didn't work very well.