Fossilman
Cave Dweller
Member since January 2009
Posts: 20,681
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Post by Fossilman on Sept 2, 2017 18:03:18 GMT -5
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Post by wigglinrocks on Sept 2, 2017 18:08:35 GMT -5
OOH That hurts .
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Post by coloradocliff on Sept 2, 2017 18:38:43 GMT -5
Mike It sounds like you got a flawed blade. 50 cuts aint right even if it was a hard agate. Designed to do that. How's the rock look? Sorry bout your day. dang..
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,681
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Post by Fossilman on Sept 2, 2017 18:48:01 GMT -5
Mike It sounds like you got a flawed blade. 50 cuts aint right even if it was a hard agate. Designed to do that. How's the rock look? Sorry bout your day. dang.. Rock wasn't the biggy,but it went three places in the box...LOL Didn't ruin the day,I just put on my MK 301 and kept cutting...LOL......
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Post by coloradocliff on Sept 2, 2017 18:54:25 GMT -5
Good deal Mike, Lots to be said about soldiering on and getting the job done. No possibility of a prorated replacement?
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Post by aDave on Sept 2, 2017 20:31:43 GMT -5
fossilman Mike, what do you attribute this to? Too fast of a feed rate or the rock moving in the vise? Asking as a newb. Dave
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,681
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Post by Fossilman on Sept 2, 2017 22:05:27 GMT -5
fossilman Mike, what do you attribute this to? Too fast of a feed rate or the rock moving in the vise? Asking as a newb. Dave Rock moving in the vise.. For sure!!!
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Post by catmandewe on Sept 3, 2017 0:50:50 GMT -5
You can press that out with a hydraulic press, pretty easy to do really, but it will never be 100% again.
Tony
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,681
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Post by Fossilman on Sept 3, 2017 9:00:21 GMT -5
You can press that out with a hydraulic press, pretty easy to do really, but it will never be 100% again. Tony How about the crack?
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Post by catmandewe on Sept 3, 2017 9:36:14 GMT -5
Might affect it, might not, wont know until you try. I wouldnt use it for any hand cutting but I would try it in a slab saw to see how it performed.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,681
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Post by Fossilman on Sept 3, 2017 9:45:45 GMT -5
Might affect it, might not, wont know until you try. I wouldnt use it for any hand cutting but I would try it in a slab saw to see how it performed. Have a 6" for my hand sawing.... This goes in my slabbing saw....Thumbs up
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mikeinsjc
spending too much on rocks
Member since June 2010
Posts: 329
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Post by mikeinsjc on Sept 3, 2017 12:19:39 GMT -5
Mike, I too have destroyed a 24" blade trying to cut a Montana agate. It came loose in the vise. Montanas are hard to grip. No fix for the blade, unfortunately. One thing I have done successfully is to use a 1/2 gallon paper milk container, fill it with the Montana agates, then pour plaster of paris in. Give it a few days to get hard, strip the paper, and cut away.This setup enables you to cut thin slices.
Missed you this summer. Got lots of free Montana petrified wood for you if you are near Cooke next summer.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,681
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Post by Fossilman on Sept 3, 2017 15:51:44 GMT -5
We were close,but no cigar...LOL Took our Grandaughter to the upper loop of Yellowstone,than headed out! Crazy crowded,I HATE CROWDS!! We are planning a get away to Cooke City again for a few days,our fav. town in Montana...
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rockdunker
noticing nice landscape pebbles
Member since July 2017
Posts: 97
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Post by rockdunker on Sept 5, 2017 8:50:10 GMT -5
Man that is a bummer. I was looking at some issues a friend was having with his rock saw and was surprised that he was cutting agate with a mechanical auto feed. I couldn't be more of a newbie and really don't know the rock cutting business. But I still couldn't understand forcing something that hard into a saw blade. The blade had actually been bending back and forth causing a wavy cut on the slabs. We are removing the mechanical linkage and adding an adjustable weight system to let the rock cut at it's own rate. Should give him some better blade life as well.
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victor1941
fully equipped rock polisher
Member since November 2011
Posts: 1,978
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Post by victor1941 on Sept 5, 2017 10:03:31 GMT -5
Fossilman, I think that you can salvage your blade even if you can't find a hydraulic press. I have damaged quite a few 14" blades and repaired them by using a large flat 1/2" metal plate for backing and a medium size ball peen hammer. Lay the damaged convex side up on the metal and start removing the bend by working toward it from both sides in the diamond rim area with the face(head) until it is mostly flat. You can then use the ball to help true up the blade by working the core. In my experience the damaged area was almost impossible to repair even when sent back to the factory and always wore out a little sooner.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,681
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Post by Fossilman on Sept 5, 2017 10:15:58 GMT -5
Fossilman, I think that you can salvage your blade even if you can't find a hydraulic press. I have damaged quite a few 14" blades and repaired them by using a large flat 1/2" metal plate for backing and a medium size ball peen hammer. Lay the damaged convex side up on the metal and start removing the bend by working toward it from both sides in the diamond rim area with the face(head) until it is mostly flat. You can then use the ball to help true up the blade by working the core. In my experience the damaged area was almost impossible to repair even when sent back to the factory and always wore out a little sooner. My thoughts completely Victor!! I have a RR anvil and the hammer in my shop,was thinking of doing that today....As for the crack,what do you think of a braze,than just grind it down to a smooth finish.. (Its only an inch of area).. If it pans out,than this blade will be used as a rough blade,to cut down rough for slabbing,later on...Than change out the blade and start slabbing...
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Post by catmandewe on Sept 5, 2017 11:27:25 GMT -5
That will work but the more you hammer the more you thin the stock, when you thin the stock it stretches it, when one section stretches then it is not completely round any more therefore you will get a hammering effect while running the blade until it wears out the part that is out of round.
Your blade is unusable now so anything you do to make it usable will still be better than throwing it away.
Tony
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Post by coloradocliff on Sept 5, 2017 11:34:49 GMT -5
Mike, I too have destroyed a 24" blade trying to cut a Montana agate. It came loose in the vise. Montanas are hard to grip. No fix for the blade, unfortunately. One thing I have done successfully is to use a 1/2 gallon paper milk container, fill it with the Montana agates, then pour plaster of paris in. Give it a few days to get hard, strip the paper, and cut away.This setup enables you to cut thin slices. Missed you this summer. Got lots of free Montana petrified wood for you if you are near Cooke next summer. Mike does the plaster get the oil dirty a lot faster?
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,681
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Post by Fossilman on Sept 5, 2017 14:26:08 GMT -5
LOL,Yes Tony-"Its a hanging on the wall now"!!! A reminder to always check the vise a second time,before cutting!!! Shopping now for a new blade......
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victor1941
fully equipped rock polisher
Member since November 2011
Posts: 1,978
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Post by victor1941 on Sept 5, 2017 20:29:24 GMT -5
Colorado Cliff, the oil will yuck very fast. I cut a large quantity of Marfa bouquet agate with this method and can assure you this is the end result.
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