Slab thickness problem

I've never cut stone, but I've seen this happen with nickel alloys, steel and Ti billets on a band-saw. Cause is a dull blade.

perhaps.

Perhaps also cosine error.

Are the feed tables and exit tables properly aligned.

Or are they possibly contibuting to an out of line or taper cut?

Same with gang blades. How is their alignment maintained?

How do you know?

milo

cutting too fast might be the problem with too low a tension in the cutting string.

I would suggest you ask the manufacturer about this.

Could there be a grain in the rock that creates this drift?

Are the spacers between blades perfectly paralell, Gangsaws are not usually used for granite, you have to use different diamond for marble tham granite, is there enough water supply, are the blades tensioned properly. The frame may be pulled off square when tensioning.

You can email me at murphy-christy@hotmail.com

Has your cutter been properly installed. I mean have all the manufactures recommend methods of installation have been followed to the letter? If this is good, then I would start checking the pivot points of the cutter. With the amount of grit flying around, I could bet that the bearing or bushing and pins are worn. This would be easy to check by positioning a dial indicator on your machine at different points. Lift, pull and push, look for the dial moving. If you have more than 0.005" (0.2mm) movement (T.I.R.) at any one of these joints, its time to some maintenance.

Hello Guest,

I have only ever cut small stones with carborundum impregnated disks. But have some knowledge all be it small, in saws from carpentry, and the sharpening and 'setting' of the blade. And, had a similar problem when I did not 'set' the saw correctly. I feel you will know a whole lot more about this with relation to stone cutting than me! But if the saws can be set by you and or a saw setting company, try sharpening the saws so the edge has slightly more 'angle' on the sharpened edge. It will actually 'feel' sharper if you lay your hand on the tips. And, try using a 'wider' set tooth. It will mean slightly more stone is cut away, but it and the sharper edges, gives a greater friction and kind of a better 'grip' on the stone.

It may be, from what you say, that perhaps either only the 'up' teeth were sharpened. Or that only the up teeth were set to the correct angle for the stone the saw will be used on?

You will not loose anything in trying something like I describe anyway, will you? :=)

Keep in touch please...........

bb