charles kuchar
spending too much on rocks
getting ready for the second coming
Member since November 2010
Posts: 300
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Post by charles kuchar on Feb 18, 2011 17:18:50 GMT -5
will try to figure out how to post a picture. i have an old ten inch saw with a new blade, well it was new last fall. i mounted the slide on the rod for it and lubricated it so it worked without much friction back and forth. there was a pulley in line with where the slide mounts on the rod and i used cord off a dog leash to tie to a set screw on the slide and fed it down past the pulley and tied a gallon bucket to it. then i put some rocks in the bucket so the slide would pull past the blade. there are wooden pieces on the inside of the slide to hold the rock and put the rock firmly in there. started it up and after and hour or so, i had cut maybe 1/4 inch. so added rocks. seems like it wasn't working any better. added more rocks. then it seemed like it was cutting but then i noticed that the slide and rock was rising up on the blade. put a 5# rock on the slide over the rock i was cutting and that seemed to help as long as i wasn't putting too many rocks in the bucket. but should it take 2 hours to cut through about 1 sq inch of rock? maybe i am just in a hurry? help... charlie
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Feb 18, 2011 17:53:36 GMT -5
I'm wondering if your blade is glazed over. What were you trying to cut?
Nate
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charles kuchar
spending too much on rocks
getting ready for the second coming
Member since November 2010
Posts: 300
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Post by charles kuchar on Feb 18, 2011 18:05:02 GMT -5
am trying to post a picture of the saw. hmmm, the file from the camera is 1.4 meg, larger than what i can post and i thought i set the camera to the smallest size.
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charles kuchar
spending too much on rocks
getting ready for the second coming
Member since November 2010
Posts: 300
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Post by charles kuchar on Feb 18, 2011 18:06:10 GMT -5
i was trying to cut various stones, mostly owahee agate and jasper. charlie
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charles kuchar
spending too much on rocks
getting ready for the second coming
Member since November 2010
Posts: 300
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Post by charles kuchar on Feb 18, 2011 18:16:00 GMT -5
here is a picture of the saw. Attachments:
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Post by jakesrocks on Feb 18, 2011 18:24:05 GMT -5
What brand is your saw ? Some have a small metal bracket that fits from the vise into the blade slot in the table. This prevents the rock from climbing the blade. I agree with Nate. It does sound like your blade is glazed over. Try cutting a piece of brick or obsidian to break the glaze. Also, if the rock you're cutting is too tall, it will try to climb the blade. I've had that happen on both an old Star Diamond 10", and a Covington 10". Don
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Post by deb193redux on Feb 18, 2011 18:24:44 GMT -5
try cutting some obsidian or a piece of grinding stone. your gravity feed should not be that slow.
how much pressure to push the clamp with your hand? how fast will it cut? you should easily get an inch in under 15 minutes.
try to carefully cut into one of your rocks when handfeeding (without the clamp at all) and note how much pressure it takes and how much speed you get. if it is fast with moderate pressure, then there is something wrong with the slide. if it is still slow as heck when handfeeding it is likely the blade.
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Post by rockmanken on Feb 18, 2011 21:37:58 GMT -5
It could also be too much weight pulling it into the blade before it has time to cut it making it ride up. But, I also, suspect the blade is glazed over. Ken
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agatemaggot
Cave Dweller
Member since August 2006
Posts: 2,195
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Post by agatemaggot on Feb 18, 2011 21:50:53 GMT -5
Are you using WATER in there ?
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Post by Rockoonz on Feb 19, 2011 0:17:58 GMT -5
Actually that style of blade requires oil as a coolant.
Lee
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Post by Jack, lapidaryrough on Feb 19, 2011 1:03:48 GMT -5
www.barrancadiamond.com/home/tec_speed.html I listed a Surface speed chart / an a RPM chart. As long as you spin dry your MK-297-301-303 all blade`s can be used on a trim saw, just remember to dry the blade. our use a rust exhibitor. Rockoons your wright in saying their for oil. that's because their use in a large slab saw, with auto feed. Hand fed material on a blade is fine. Just never expect water to lube a auto feed screw drive, or hydraulic slab saw. Though their are New blade on the market from Germany made to run on lapidary slab saw.- water for lube. Not like the blades used on concrete our asphalt, wet cutting tile work. I still use a 9" Congo Black diamond blade on a E-10 cab unit in water i just dry it off when done, though i got three new ones from a friends stash Jack
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Post by Jack, lapidaryrough on Feb 19, 2011 1:05:49 GMT -5
went back an looked at the picture that's a HP trim saw. The vise is why it climbs the blade my E-10 does the same thing.
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charles kuchar
spending too much on rocks
getting ready for the second coming
Member since November 2010
Posts: 300
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Post by charles kuchar on Feb 19, 2011 6:30:25 GMT -5
thanks for the clues. i again looked for any identification but could not find any label. when i got the saw i talked to shawn at therockshed and he said water was ok in that saw but he sent me an additive to put in the water. i do think the blade might be glazed so i will cut a brick in half. last fall i cut rocks by hand and i thought it did ok on that. charlie
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Post by johnjsgems on Feb 19, 2011 8:48:55 GMT -5
Most better power feeds run 1 inch in 5 minutes. Keep your speed at that or slower. Sounds like dull/glazed blade.
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Post by Jack, lapidaryrough on Feb 19, 2011 12:32:34 GMT -5
on the bed of your trim saw under the vise their was a brass wire rod. size is about 5/32nd, this rod fits in the hole to the back and in the front edge of the drain pan. the rod keeps the vise off the drain pan. and allows easy pushing and weighed fed use.and the chips that come off rocks well collect under vise cause`s vise to raise up.
the original rod is a brazing rod, 5/32nd. with no fluxes on it. just a clean brazing rod.
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charles kuchar
spending too much on rocks
getting ready for the second coming
Member since November 2010
Posts: 300
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Post by charles kuchar on Feb 19, 2011 16:20:18 GMT -5
i will check those things. i have included a picture of a part that came with the saw that i have no idea what to do with it. i was thinking it was to hold the vice down but the brackets on the part fit on the side rails but the end rail is slightly larger. the three part on the rod move and have set screws. maybe it wasn't even part of the saw though. charlie Attachments:
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Post by Jack, lapidaryrough on Feb 19, 2011 17:36:41 GMT -5
I have that piece with my E-10, though. That is the brace for the grinding wheels to rest rock slabs on our what ever your grinding, it would clap to the water pan in front of the wheels and it has adjustable table to angle your grinding point on slabs. silicon wheels were on the unit back then. Odd that the brace was in with it. can`t till if the unit has been cut down to just a trim saw. vise side should have a hole for the arbor shaft on the right side. In short that brace is part of the HighLand-Pack cabbing unit combo units. many model were made.
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charles kuchar
spending too much on rocks
getting ready for the second coming
Member since November 2010
Posts: 300
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Post by charles kuchar on Feb 19, 2011 19:50:41 GMT -5
i understand your description of the part. it does reach both rails on the water pan. i don't know if it is changed but when i got it, the blade was never used and the bearings on the blade shaft were new. it seems to be in good shape if i can figure out it's uses. i can see where it would work well if i had a slab and was shaping it. that would be good if i can do nebraska outlines and polish them up. i do appreciate your input and i am going to look up that e-10 specs. charlie
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Post by Jack, lapidaryrough on Feb 19, 2011 21:41:28 GMT -5
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charles kuchar
spending too much on rocks
getting ready for the second coming
Member since November 2010
Posts: 300
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Post by charles kuchar on Feb 25, 2011 20:00:51 GMT -5
joined a rock and mineral club last night. talking to the president, he said my saw was running too slow. called mk and the blade should run at 1400-1700. my blade was running much slower. i went down to the hardware store and my drive pulley on the blade is 2 1/2 and got a blade 2 1/4 for the motor which runs at 1725. as soon as it gets warmer i will try the saw again... charlie
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