rastageezer
starting to spend too much on rocks
Member since December 2013
Posts: 169
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Post by rastageezer on Mar 11, 2016 2:40:04 GMT -5
so those Montanas that rollingstone did got me thinking. He hammer broke 'em and they came out great. I just cut a bunch on the trim saw to reduce fractures but it took some time and a blade (MK didn't seem to last too long) What do you think, go hammer or be more careful? Hammer certainly is cost effective and easy. The results can't be argued with!
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Post by Toad on Mar 11, 2016 6:18:19 GMT -5
I'm a cheapskate -so I hammer break. To each their own.
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Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
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Post by Intheswamp on Mar 11, 2016 8:06:30 GMT -5
rastageezer, I'm interested in your saw blade. You say the MK didn't last long...could you give some particulars?...which blade, size, how much have you cut with it, your experience with sawing rock, etc.,? I'm not experienced in using a diamond blade, but my understanding is that they last a long time if not abused (I may very well be an unintentional abuser when I get my saw running). Have you tried dressing the saw by cutting some soft rock, old sc grinding stone, dressing stick, etc., to clean rock debris from the diamonds? Just curious...
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,711
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Post by Fossilman on Mar 11, 2016 10:24:12 GMT -5
rastageezer, I'm interested in your saw blade. You say the MK didn't last long...could you give some particulars?...which blade, size, how much have you cut with it, your experience with sawing rock, etc.,? I'm not experienced in using a diamond blade, but my understanding is that they last a long time if not abused (I may very well be an unintentional abuser when I get my saw running). Have you tried dressing the saw by cutting some soft rock, old sc grinding stone, dressing stick, etc., to clean rock debris from the diamonds? Just curious... My MK (14") has got through hell and back! I just dress it out again,cut a huge load of Obsidian with it and start cutting agates and petwood again....Continue through the cycle and do it all over again..... So I am saying,I cut mine...
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Mar 11, 2016 12:01:15 GMT -5
Oil saw v. Water saw
Probably
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Post by Drummond Island Rocks on Mar 11, 2016 12:13:04 GMT -5
rastageezer, I'm interested in your saw blade. You say the MK didn't last long...could you give some particulars?...which blade, size, how much have you cut with it, your experience with sawing rock, etc.,? I'm not experienced in using a diamond blade, but my understanding is that they last a long time if not abused (I may very well be an unintentional abuser when I get my saw running). Have you tried dressing the saw by cutting some soft rock, old sc grinding stone, dressing stick, etc., to clean rock debris from the diamonds? Just curious... I consider anything but trimming 1/4" slabs to be "abuse" on a trim saw blade. Cutting extremely hard Montana nodules in half, cutting imperfections off and using the side of the blade to grind are all way worse for the blade then just trimming. My MK blade on my slab saw has last years but I order a new MK trim saw blade at least 6 times a year. It is just another expendable part of the hobby much like stage one grit. Chuck
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Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
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Post by Intheswamp on Mar 11, 2016 13:11:41 GMT -5
Arghhh... Not what I wanted to hear, Chuck. But, the truth shall set you free.... I'll be using my MK on the 6" Lortone. I hope to "slab" some gravel-sized rocks...possibly on up to 2" or so. But, I've also got the cheap-cheap HF tilesaw I picked up on sale for $40 and a Hotdog to go on it...maybe use it for the slabette machine and save the MK on the Lortone for trimming.
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Post by Drummond Island Rocks on Mar 11, 2016 13:27:28 GMT -5
Arghhh... Not what I wanted to hear, Chuck. But, the truth shall set you free.... I'll be using my MK on the 6" Lortone. I hope to "slab" some gravel-sized rocks...possibly on up to 2" or so. But, I've also got the cheap-cheap HF tilesaw I picked up on sale for $40 and a Hotdog to go on it...maybe use it for the slabette machine and save the MK on the Lortone for trimming. Anytime you are hand holding an uneven nodule and pushing it through it is really difficult to stay 100 percent straight all the way through the cut. As soon as you twist the rock a little bit you put a bunch of pressure on the sides of the blade and eat up some diamond. Chuck
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Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
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Post by Intheswamp on Mar 11, 2016 14:14:36 GMT -5
Ok, I'm a bit more prepared now. It makes good sense what you are saying, Chuck. Maybe I can put that little vise to use on the Lortone...
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Post by Drummond Island Rocks on Mar 11, 2016 14:20:04 GMT -5
Ok, I'm a bit more prepared now. It makes good sense what you are saying, Chuck. Maybe I can put that little vise to use on the Lortone... The toy lortone vise will help. Only issue is that trim saw blades are usually pretty thin so if you start pushing the vise forward and the area that first hits the blade is angled the blade will deflect then when it does catch and start cutting you will be binding the blade through the cut. Same issue applies to big slab saws but those blades are much thicker and do not deflect as easily. I order my MK trim saw blades on the thick side. More waste when trimming but I can abuse the blade a bit more. Chuck
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Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
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Post by Intheswamp on Mar 11, 2016 15:53:59 GMT -5
Sheese, I gotta quit relying on my memory to remember things. What I have is a Barranca BD-301 in the 6" (for the Lortone) and a 7" MK-225 for the tile-saw. Looks like the MK-225 is the thicker of the two blades so that should the best (maybe not the greatest, but...) on the tile saw for slabbettes. Then save the BD-301 for trimming on the Lortone. Now all I've gotta do is get them set up and running/cutting.
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Post by 150FromFundy on Mar 11, 2016 16:44:12 GMT -5
I have used the 7" MK Diamond "Hot Dog" on my wet tile saw in the past. I usually get in the neighbourhood of 200 cuts on a blade. $50 blade / 200 cuts = 25 cents per cut. I'm not sure if that is worthy of bragging about, but it will give you an idea of how many cuts you should be getting.
Darryl.
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Mark K
Cave Dweller
Member since April 2012
Posts: 2,770
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Post by Mark K on Mar 11, 2016 21:54:22 GMT -5
I have a Gemstone brand saw that came with the most worthless vise I have seen yet. It forced me to learn to hold rock and feed by hand in a nice smooth motion. I have had blades last for years even though I don't use a vise. A lot, a good percentage actually, were Montanas.
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