shermlock
has rocks in the head
Member since August 2011
Posts: 612
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Post by shermlock on Oct 8, 2011 20:40:43 GMT -5
I have a MK145 tile saw with a 303 blade. I've been cutting with it for about 2 hours. No problems. Today I started cutting with it and the blade was getting stuck in straight cuts and really "popping" the rock on the top side of the cut. I made sure I wasn't pinching the rock and I have a ton of saw experience. Could I need a new blade already? I've been cutting jasper and agate but I'd think I'd get more than two hours out of a blade.
Any ideas what I am doing wrong?
Should I be using mineral oil instead of water?
Thanks, Scott
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Post by johnjsgems on Oct 8, 2011 21:03:14 GMT -5
Plain water in any plastic bodied saw. Make sure your blade rotation is right. The blade can dull and can be dressed with a dressing stick. At 5500 rpm and 1/2 hp it is easy to push too hard and dull the blade. The 303C will cut until you hit the core or very near it. Make sure the blade isn't slipping. The saw is made for .060 tile blades. I use a 1" X 5/8" blade bushing in my blade washer recess to help get a better grip on the .020" blade.
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rocpup
spending too much on rocks
Pink Limb Iris
Member since March 2011
Posts: 465
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Post by rocpup on Oct 10, 2011 8:05:49 GMT -5
Some rock can be really tough on blades. I have rock that can't be cut with a normal blade at all. Some really hard agate will require some blade dressing after a few cuts. If you are forcing your rock into your saw you should expect it to wear faster. Some blades are designed to cut with a water coolant is yours? I only use water on my trim saws. If you have to use water look for a blade designed for it. Don
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