carver
starting to shine!
Member since November 2019
Posts: 36
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Post by carver on Apr 4, 2020 3:12:17 GMT -5
I live in a neighborhood filled with old people that love to complain about noise. I need a saw blade for my 8" covington slab/trim saw. I also have a 4" saw as well. I need to order a saw blade ASAP. Looking at MK Diamond 303 8" in either .032" or .060" (the .025 I assume is too thin). Is .032 too narrow for 8"? Anyone have experience with these particular ones and if so is the noise less on narrow blades?
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Post by taylor on Apr 5, 2020 0:01:47 GMT -5
We changed from an economy blade to a BD-303 with 0.032" kerf on our 10" saw. Much lower decibels and great cuts! Worth the $$!
Assuming the 4" saw is a tile saw I doubt that there would be any noticeable decrease in volume.
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Post by opalpyrexia on Apr 5, 2020 8:32:54 GMT -5
I just started using an MK-303 10" with 0.032" kerf. Much quieter, less waste, and smoother cuts.
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hummingbirdstones2
fully equipped rock polisher
Vince A., 1958-2023
Member since August 2018
Posts: 1,461
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Post by hummingbirdstones2 on Apr 5, 2020 8:51:36 GMT -5
Good to hear you guys are using the .032" 303 on your 10" saws. Can I assume you use a vise most of the time?
The .040" 303 on our 10" HP gravity feed flexes pretty easily if hand-feeding. Only issue if using the vise is avoiding deflection as it starts the cut.
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Post by opalpyrexia on Apr 5, 2020 9:31:10 GMT -5
Good to hear you guys are using the .032" 303 on your 10" saws. Can I assume you use a vise most of the time?
The .040" 303 on our 10" HP gravity feed flexes pretty easily if hand-feeding. Only issue if using the vise is avoiding deflection as it starts the cut.
Good point, Vince. I use the vise and I pay particular attention to where the blade will make first contact. I always make an effort to orient the rough so that the angle of blade-to-rough-surface contact is as reasonably close to 90 degrees as I can get, all other factors considered.
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Post by stardiamond on Apr 5, 2020 10:04:19 GMT -5
I have been using an 8 inch .032 MK303 or equivalent since 2002. Smooth cuts and quiet. The .025 is much more flexible. I have noticed that some of the .032 blades are thinner and more flexible than they were before. My Covington 16 inch saw doesn't make much noise. The most noise I make working is when I jam a preform into the 80 grit wheel.
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Post by taylor on Apr 5, 2020 22:02:32 GMT -5
Yes, we are using vise and auto-feed...and oil in 10" saw. Also occasionally use a 10" blade with 0.015" kerf for cutting metallics. The blade was purported to be for meteorites but it works nicely for native copper, silver ore, and banded iron.
We use a 6" saw with water for hand trimming.
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carver
starting to shine!
Member since November 2019
Posts: 36
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Post by carver on Apr 6, 2020 14:39:41 GMT -5
Yes, we are using vise and auto-feed...and oil in 10" saw. Also occasionally use a 10" blade with 0.015" kerf for cutting metallics. The blade was purported to be for meteorites but it works nicely for native copper, silver ore, and banded iron. We use a 6" saw with water for hand trimming. Hello, I am very interested in more on this meteorite blade. Do you have any ideas for the feed rate for metallic meteorites? Anything else about the process or good source for learning more? I had always though bandsaws were the only option, I had no idea they made thin circular saw blades specifically for it.
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Post by Rockoonz on Apr 6, 2020 18:09:12 GMT -5
I have a .032 blade in my 10" slab saw. I like it but I won't push the limits of the saw with it. I plan to get a 040 blade and save the 032 for high dollar rough.
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Post by taylor on Apr 6, 2020 22:19:08 GMT -5
carver we bought the "for metallics" blade in 2018 from Johnson Brothers, their part number was M10-15-58. Recommend slowest feed rate and pay attention to the temperature of the blade. We have cut some pieces of rough that were near the size limit for the ten inch saw and the temperature issue was apparent. Frequently our saws run for hours, cut after cut, but with the large metallics the blade will get very hot after about three cuts. We opt to make one cut, give cool time, then cut again. This blade produces smoother and cleaner cuts on metal ores with much longer blade life.
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carver
starting to shine!
Member since November 2019
Posts: 36
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Post by carver on Apr 7, 2020 1:38:23 GMT -5
carver we bought the "for metallics" blade in 2018 from Johnson Brothers, their part number was M10-15-58. Recommend slowest feed rate and pay attention to the temperature of the blade. We have cut some pieces of rough that were near the size limit for the ten inch saw and the temperature issue was apparent. Frequently our saws run for hours, cut after cut, but with the large metallics the blade will get very hot after about three cuts. We opt to make one cut, give cool time, then cut again. This blade produces smoother and cleaner cuts on metal ores with much longer blade life. Thanks, how low do you cut metallic meteorites. Is 1" per hour too fast if your cutting through a 3" tall meteorite slab? I can set up any speed rate as I custom built a saw with a variable speed DC gear motor for the powereed so have unlimited control over the feed rate. I have ZERO experience cutting meteorite personally but would like to create some meteorite veneers for a project I have dreamed up.
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Post by taylor on Apr 7, 2020 20:24:50 GMT -5
Sorry carver but I know next to nothing about meteorites. We are cutting copper ore with native copper, silver ore, and banded iron. The banded iron in particular was high wear on both the economy blade and the 303 blade.
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stillrockinpdx
starting to shine!
Hey!! I got a Star! - Find me on Instagram under stillrockinpdx - I collect other things too.
Member since April 2017
Posts: 45
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Post by stillrockinpdx on Apr 26, 2020 15:34:27 GMT -5
Does anyone here have any experience with the saw blade brand name BUTW? I’m needing a good 12” blade for cutting mostly hard material such as petrified wood and agate.
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Post by stardiamond on Apr 26, 2020 15:52:31 GMT -5
Does anyone here have any experience with the saw blade brand name BUTW? I’m needing a good 12” blade for cutting mostly hard material such as petrified wood and agate. BUTW is the id of an ebay seller. A tried and true blade would be an mk301, for $135 plus tax and shipping.
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stillrockinpdx
starting to shine!
Hey!! I got a Star! - Find me on Instagram under stillrockinpdx - I collect other things too.
Member since April 2017
Posts: 45
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Post by stillrockinpdx on Apr 26, 2020 15:58:46 GMT -5
Okay. Yeah I just bought a mk301 for my 16”. I need 2 12” and a 20” and those could be either 301 or 303. I destroyed my Other 16” mk301 a few months back. I thought it was a mk 303
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stillrockinpdx
starting to shine!
Hey!! I got a Star! - Find me on Instagram under stillrockinpdx - I collect other things too.
Member since April 2017
Posts: 45
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Post by stillrockinpdx on Apr 26, 2020 15:59:28 GMT -5
Sure would like to find them for less though.
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