herchenx
Cave Dweller
Member since January 2012
Posts: 3,360
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Post by herchenx on Sept 18, 2012 9:23:29 GMT -5
My 12" slab saw has a deep layer of sludge in the bottom.
Before i start slogging around in oil i wanted to see what to do with the sludge once i scoop it out.
Is there a good way to stabilize the goo to get rid of it? Do most people do something specific with it?
Any guidance from the pros would be very welcome.
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Post by johnjsgems on Sept 18, 2012 9:31:04 GMT -5
I've heard of putting it in a container and taking it to wherever your waste disposal collects hazardous waste. I've also heard many say they just package it up and put it in the trash. I've kept sludge in a covered bucket and recovered oil off the top every couple of months.
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Post by jakesrocks on Sept 18, 2012 9:37:39 GMT -5
Depends on the type of oil you're using. If it's mineral oil, it can go straight to the land fill.
As John said, you can store it in a bucket. As the sludge settles to the bottom, oil will rise to the top. Skim it off and put it right back in your saw. It'll save some on the cost of oil.
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Post by FrogAndBearCreations on Sept 18, 2012 10:12:08 GMT -5
I run the sludge from my saw through a paper bag to recover as much oil as I can and toss the bag in the garbage when done
I have a bucket with some holes in the botton set up that the bag goes in that drains into another bucket. I keep that in a warm place to keep the filtering going.
I use mineral oil
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Post by deb193redux on Sept 18, 2012 11:07:42 GMT -5
Once I get a dry residue, or a damp one, or sometimes even a viscious oily one that I don't want to fuss with filtering any more (to save 75cents in oil, I am not prepared to spend hours or more importantly risk a spill or mess in my shop), I drop it right into the curbside trash pickup. I use clean white mineral oil. Can't do this with other oils.
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keystonecops
freely admits to licking rocks
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Member since October 2010
Posts: 957
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Post by keystonecops on Sept 18, 2012 11:12:18 GMT -5
I also use the paper bag. Sludge, oil all goes in paper bag, which is inna bucket with holes. I suspeng that inside another bucket so its not sittn on bottom. I just leave it an fergit it. The oil wil filter out an the sludge/snot goes inna trash bag.Later Clyde
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Post by Hard Rock Cafe on Sept 18, 2012 12:36:28 GMT -5
Ditto the two bucket, paper bag, and trash method with mineral oil.
I use a 4" drywall knife to scrape it out of the bottom of my 18" saw. On my 10" I use a vacuum slab saw sucker (can't remember what we previously called it here on the board). It's a sealed bucket that goes between the wand and the shop vac to catch the sludge.
Chuck
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herchenx
Cave Dweller
Member since January 2012
Posts: 3,360
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Post by herchenx on Sept 18, 2012 16:43:02 GMT -5
When I bought the saw it had a companion bucket of oil, which is not mineral oil. So I am guessing it is not OK to go in the trash.
I think I'll rig up a coffee can with holes in it, put the paper bag in, and just shovel the sludge in and let it sit in the saw so the oil drains back into the reservoir. There is a hazardous waste dump at the landfill so I can take it there.
Only problem is I'll have to leave the saw unused for a while, which is probably OK, I think I have enough slabs to keep me going for a while.
Also this saw came with no instructions. How much oil should be in the bottom? I assume the 12" blade should dip an inch or so into the oil but I have no way of knowing for sure.
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Post by Bluesky78987 on Sept 18, 2012 16:50:45 GMT -5
Leave the saw unused for awhile??!!! ![???](//storage.proboards.com/forum/images/smiley/huh.png) ?!?!??! ![???](//storage.proboards.com/forum/images/smiley/huh.png) Heresy! That is NOT ok!!!! ;-)
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Post by deb193redux on Sept 18, 2012 16:57:50 GMT -5
actually as little as 1/4" in the oil would be OK, and might be safer mist-wise
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herchenx
Cave Dweller
Member since January 2012
Posts: 3,360
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Post by herchenx on Sept 18, 2012 17:44:05 GMT -5
Thanks all. Susan, I know. I love being able to run and run this thing, but the sludge needs to be dealt with. Plus I have the new genie to keep me busy ![:)](//storage.proboards.com/forum/images/smiley/smiley.png)
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Post by beefjello on Sept 18, 2012 20:15:28 GMT -5
Ditto Diane, Clyde, Chuck and the rest ![:)](//storage.proboards.com/forum/images/smiley/smiley.png)
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Post by phil on Sept 20, 2012 15:32:19 GMT -5
Oil depth should cover the diamond area on the blade plus 1/8th inch.
If it's any oil but mineral oil, it goes to the hazardous waste.
If It's mineral oil, don't throw your money away. Reclaim the oil, and the hard sludge that is left over can then be throw in the trash, or as we do, put in the compost pile. The trees love the minerals in there.
I use a 1 bucket system. In that one bucket I have a piece of hardware cloth bent to fit inside leaving about 8 inches open space in the bottom where the cleaned oil will drain to.
I use a double bag system for our mineral oil. One paper grocery bag inside another, set on top of the wire mesh, then filled with about 10 inches of sludge. Why 2 bags? Cleaner oil. Why mesh? The old oil has more surface area to filter thru, so the process only takes about a week per bucket load. Depending on which saw, I may have 2 or 3 buckets going when it's time.
I also hate scraping the inside of the saw and ruining yet another shirt (that mud ALWAYS leaves a stain!), so instead I take a big serving spoon and stir the whole thing up, getting all the sludge in suspension. THEN I drain it right into the paper bags. Don't overfill. Easier to do an extra bucket anyway. It saves time, as I then don't have to scrape down the inside afterwards. It's a bit dirty, but hey.. first 5 rocks will make it just as dirty anyway, and the new clean oil can be poured in in such a way as to clean off any sides, shelves, sleds, etc that need cleaning. No wasted oil at all. When done, I lid my buckets and set them aside for next cleaning (about every 2 months make for a much easier job). I also rotate my blade at this time, as the manufacturer recommends. Make the blades last a LOT longer.
Hope that helped. Phil
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herchenx
Cave Dweller
Member since January 2012
Posts: 3,360
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Post by herchenx on Sept 20, 2012 15:43:11 GMT -5
Phil and all, thanks.
I'm sorry but I am a little sleep deprived. What do you mean by rotating the saw blade? I thought it was directional?
My saw looks 50 years old and I don't have any manufacturer's info so I am pretty clueless.
Thanks
John
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Deleted
Deleted Member
Member since January 1970
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Post by Deleted on Sept 20, 2012 16:04:45 GMT -5
I am told that non-mineral oils can be recycled as motor oil at the local oil change shops. In california you must give them ID to give the motor oil away.
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Deleted
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Post by Deleted on Sept 20, 2012 21:43:19 GMT -5
I have limited experience but this is the way I have seen it. If the blade is a smooth edge blade you should be able to run it either way although I have seen some with an arrow on them. Maybe they lay the diamonds in one by one at a certain angle but who knows.
The ones that you want to watch out for are the ones that have the little notches cut around the edge and filled with diamonds. If the notches are straight you should be able to run them either way. If the notches are sloped you want to make sure that they are dragging instead of pushing. If they are pushing they could hang up and be jerked up straight which would cause diamonds to fall out and who knows what all. I do not know any other way to explain it other than if a fingernail is dragging on a wheel it will just get hot, smaller and very painful with time. If the fingernail is turned the other way it could be caught and ripped off or at least the end broken off causing instant pain and much swearing. Well swearing either way for us older ones that do not have children running around. Hope that helps. Jim
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herchenx
Cave Dweller
Member since January 2012
Posts: 3,360
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Post by herchenx on Sept 20, 2012 21:53:59 GMT -5
Yeah I think mine is slanted, I will look tomorrow.
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Post by phil on Sept 21, 2012 10:51:28 GMT -5
Phil and all, thanks. I'm sorry but I am a little sleep deprived. What do you mean by rotating the saw blade? I thought it was directional? My saw looks 50 years old and I don't have any manufacturer's info so I am pretty clueless. Thanks John It just means turning the blade around. Take it off, rotate it front to back, reinstall. Keeps the diamond fresh and side wear even.
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Post by johnjsgems on Sept 21, 2012 11:55:12 GMT -5
John, the old style notched rim (MK, BD, HP, Felker) blades and the Chinese crimp rims are non-directional. All BD/MK blades now available are single directional. Most plated blades too. If you are not sure what blade better to just use a dressing stick to keep any glazing off and expose new diamonds.
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