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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Do not buy a Harbor Freight "rock tumbler"
Unless you want it to break after 3 weeks, that is. What a POS. I
bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. i |
#2
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Do not buy a Harbor Freight "rock tumbler"
"Ignoramus5816" wrote in message ... Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. I went through the usual labour pains before I decided on mine. Rather than going the cheap way I splashed out on Thumler's UV10 (Industrial) and so far I have not regretted it. BTW do not use cat litter silica crystals wet...or dry for that matter (the dust is awful). -- Michael Koblic, Campbell River, BC |
#3
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Do not buy a Harbor Freight "rock tumbler"
On Wed, 26 May 2010 17:27:26 -0500, Ignoramus5816
wrote: Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. i Take them out to where the water is. Took mine just on a side trip and there are all kinds of colored volcanic glass in Escanaba Mi. Lost me Ig. You had a mill stuck in a corner with your lyon tool box and then getting a bigger mill, but you buy a broken china rock ... Extended warranty! You can reach little no neck monsters from Ill.? No more MIG fighters? Or AK's? SW |
#4
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Do not buy a Harbor Freight "rock tumbler"
Michael Koblic wrote:
"Ignoramus5816" wrote in message ... Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. I went through the usual labour pains before I decided on mine. Rather than going the cheap way I splashed out on Thumler's UV10 (Industrial) and so far I have not regretted it. BTW do not use cat litter silica crystals wet...or dry for that matter (the dust is awful). I just chuck a plastic container in my lathe that has a couple of wood slats mounted on the inside of it and run it at the slowest speed. I use the tailstock to hold the lid on. It also works great for deburring parts. John |
#5
Posted to rec.crafts.metalworking
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Do not buy a Harbor Freight "rock tumbler"
isn't this a metal working group? to make a rock tumbler all you need is an
old BBQ motor, a couple of steel bars that you cover with tight fitting flexible hose, and some bracketry to hold the mess - direct drive one of the rods with the BBQ motor. use any plastic jar for the tumbling jar. "Ignoramus5816" wrote in message ... Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. i |
#6
Posted to rec.crafts.metalworking
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Do not buy a Harbor Freight "rock tumbler"
"Bill Noble" fired this volley in
: isn't this a metal working group? to make a rock tumbler all you need is an old BBQ motor, a couple of steel bars that you cover with tight fitting flexible hose, and some bracketry to hold the mess - direct drive one of the rods with the BBQ motor. use any plastic jar for the tumbling jar. Right. Read something on Ball Milling. There's something more to it than what Horrible Fright might tell... and it doesn't take two weeks to "tumble" a bunch of dull, worthless rocks into shiny, worthless rocks -- It takes about 24-36 hours in an optimized mill. In fact, it takes about the same time to change loads and wash between grit charges as it does to do the actual grinding. If you wanted to do the whole job in three days, you'd be working after midnight two of them. LLoyd (who _actually_ wrote the book on the subject) |
#7
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-27, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
"Bill Noble" fired this volley in : isn't this a metal working group? to make a rock tumbler all you need is an old BBQ motor, a couple of steel bars that you cover with tight fitting flexible hose, and some bracketry to hold the mess - direct drive one of the rods with the BBQ motor. use any plastic jar for the tumbling jar. Right. Read something on Ball Milling. There's something more to it than what Horrible Fright might tell... and it doesn't take two weeks to "tumble" a bunch of dull, worthless rocks into shiny, worthless rocks -- It takes about 24-36 hours in an optimized mill. In fact, it takes about the same time to change loads and wash between grit charges as it does to do the actual grinding. If you wanted to do the whole job in three days, you'd be working after midnight two of them. LLoyd (who _actually_ wrote the book on the subject) Lloyd, I am intrigued, what is that book? i |
#8
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Do not buy a Harbor Freight "rock tumbler"
Ignoramus5816 writes:
Lloyd, I am intrigued, what is that book? http://www.amazon.com/dp/B00229ZI7W *The* book that transformed the hobby (and industry) of pyrotechnics. |
#9
Posted to rec.crafts.metalworking
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Do not buy a Harbor Freight "rock tumbler"
"Ignoramus5816" wrote in message ... Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. i I can't believe you bought one when you could have cobbled something together in half an hour from your junk pile. |
#10
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-27, Buerste wrote:
"Ignoramus5816" wrote in message ... Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. i I can't believe you bought one when you could have cobbled something together in half an hour from your junk pile. The mechanism is straightforward, but it is not as easy to make a rubber barrel. i |
#11
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Do not buy a Harbor Freight "rock tumbler"
Ignoramus12281 wrote:
The mechanism is straightforward, but it is not as easy to make a rubber barrel. Sections of a truck inner-tube? Jon |
#12
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-27, Michael Koblic wrote:
"Ignoramus5816" wrote in message ... Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. I went through the usual labour pains before I decided on mine. Rather than going the cheap way I splashed out on Thumler's UV10 (Industrial) and so far I have not regretted it. BTW do not use cat litter silica crystals wet...or dry for that matter (the dust is awful). That is a vibratory tumbler, and mine was a rotary. I actually do have a vibratory tumbler, called Nova 501HT (see novafinishing.com). It is not as good for rounding rocks, however. Otherwise it is great. http://www.novafinishing.com/products.html http://www.novafinishing.com/prices.html i |
#13
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Do not buy a Harbor Freight "rock tumbler"
"Jon Danniken" wrote in message ... Ignoramus12281 wrote: The mechanism is straightforward, but it is not as easy to make a rubber barrel. Sections of a truck inner-tube? Jon No, A whole tire! http://www.acc.umu.se/~widmark/lwtrumle.html http://www.acc.umu.se/~widmark/lwtrumld.html Steve |
#14
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-27, Up North wrote:
"Jon Danniken" wrote in message ... Ignoramus12281 wrote: The mechanism is straightforward, but it is not as easy to make a rubber barrel. Sections of a truck inner-tube? Jon No, A whole tire! http://www.acc.umu.se/~widmark/lwtrumle.html http://www.acc.umu.se/~widmark/lwtrumld.html It looks cute in a redneck kind of way, but in actuality it is very inconvenient and the tire wears out. i |
#15
Posted to rec.crafts.metalworking
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Do not buy a Harbor Freight "rock tumbler"
No, A whole tire! http://www.acc.umu.se/~widmark/lwtrumle.html http://www.acc.umu.se/~widmark/lwtrumld.html It looks cute in a redneck kind of way, but in actuality it is very inconvenient and the tire wears out. i When I was working in the sand and gravel business a salesman gave me a sample of a urethane sheet that had an adhesive back on it. The product was available in different durometer ratings and thickness'. Once applied to a piece of steel it was extremely difficult to break the bond between the two. I don't recall the manufacturer of the product. It seems like the ideal thing to line a barrel with. Steve |
#16
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-27, Up North wrote:
When I was working in the sand and gravel business a salesman gave me a sample of a urethane sheet that had an adhesive back on it. The product was available in different durometer ratings and thickness'. Once applied to a piece of steel it was extremely difficult to break the bond between the two. I don't recall the manufacturer of the product. It seems like the ideal thing to line a barrel with. Yes, that would be cool. Anyway, I actually do have a 1/3 HP "real" tumbler from an old dirty factory, it is just a bit too big. I wanted to have a little tumbler that would be more friendly to my kids. i |
#17
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Do not buy a Harbor Freight "rock tumbler"
On Thu, 27 May 2010 10:02:27 -0500, Ignoramus12281
wrote: On 2010-05-27, Up North wrote: "Jon Danniken" wrote in message ... Ignoramus12281 wrote: The mechanism is straightforward, but it is not as easy to make a rubber barrel. Sections of a truck inner-tube? Jon No, A whole tire! http://www.acc.umu.se/~widmark/lwtrumle.html http://www.acc.umu.se/~widmark/lwtrumld.html It looks cute in a redneck kind of way, but in actuality it is very inconvenient and the tire wears out. i Barrels of rock tumblers ALWAYS wear out. Particularly with 50 lbs rock in them. Gunner -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#18
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Do not buy a Harbor Freight "rock tumbler"
McMaster Carr sells the rubber barrels for the Thumler's Tumbler, in 2
different sizes. RogerN "Ignoramus12281" wrote in message ... On 2010-05-27, Buerste wrote: "Ignoramus5816" wrote in message ... Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. i I can't believe you bought one when you could have cobbled something together in half an hour from your junk pile. The mechanism is straightforward, but it is not as easy to make a rubber barrel. i |
#19
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Do not buy a Harbor Freight "rock tumbler"
"Ignoramus12281" wrote in message ... On 2010-05-27, Michael Koblic wrote: "Ignoramus5816" wrote in message ... Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. I went through the usual labour pains before I decided on mine. Rather than going the cheap way I splashed out on Thumler's UV10 (Industrial) and so far I have not regretted it. BTW do not use cat litter silica crystals wet...or dry for that matter (the dust is awful). That is a vibratory tumbler, and mine was a rotary. I actually do have a vibratory tumbler, called Nova 501HT (see novafinishing.com). It is not as good for rounding rocks, however. Otherwise it is great. http://www.novafinishing.com/products.html http://www.novafinishing.com/prices.html Ah. Several people sent me links to the HF vibratory tumbler. I did not know they did the rotary ones too. But thanks for the links. That Nova 501HT looks a serious machine. BTW is this where you get your media from? $1.50 +/- per lb of ceramics is very good. I wonder if they ship to Canada... -- Michael Koblic, Campbell River, BC |
#20
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-28, Michael Koblic wrote:
"Ignoramus12281" wrote in message ... On 2010-05-27, Michael Koblic wrote: "Ignoramus5816" wrote in message ... Unless you want it to break after 3 weeks, that is. What a POS. I bought it to show what rock tubling is, to my kids. I sort of knew that it is junk, and bought an extended warranty, but all it give me is the right to get another POS. I went through the usual labour pains before I decided on mine. Rather than going the cheap way I splashed out on Thumler's UV10 (Industrial) and so far I have not regretted it. BTW do not use cat litter silica crystals wet...or dry for that matter (the dust is awful). That is a vibratory tumbler, and mine was a rotary. I actually do have a vibratory tumbler, called Nova 501HT (see novafinishing.com). It is not as good for rounding rocks, however. Otherwise it is great. http://www.novafinishing.com/products.html http://www.novafinishing.com/prices.html Ah. Several people sent me links to the HF vibratory tumbler. I did not know they did the rotary ones too. Well, if only in name. But thanks for the links. That Nova 501HT looks a serious machine. BTW is this where you get your media from? $1.50 +/- per lb of ceramics is very good. I wonder if they ship to Canada... I got the media on the cart with the machine at the factory that went bankrupt. Two half full buckets and a box of ceramic media of various coarseness, and this vibratory tumbler. I also have some corn cob media (way too much; anyone wants some cheap?). I was going to polish a big jar's worth of pennies with the kids this weekend. i |
#21
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Do not buy a Harbor Freight "rock tumbler"
On Thu, 27 May 2010 21:02:38 -0500, Ignoramus12281
wrote: But thanks for the links. That Nova 501HT looks a serious machine. BTW is this where you get your media from? $1.50 +/- per lb of ceramics is very good. I wonder if they ship to Canada... I got the media on the cart with the machine at the factory that went bankrupt. Two half full buckets and a box of ceramic media of various coarseness, and this vibratory tumbler. I also have some corn cob media (way too much; anyone wants some cheap?). I was going to polish a big jar's worth of pennies with the kids this weekend. Pennies? Then your corncob media is what you want to use. Ceramic media will give you either badly beaten up but very shiney pennies..or copper disks with barely visible features on it. Frankly..Id use crushed walnut hulls for the job, with a teaspoon of Brasso tossed into the batch..and checked REGULARLY. Gunner, who cleans firearms brass in a vibratory cleaner about 2' in diameter....with walnut hulls -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#22
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Do not buy a Harbor Freight "rock tumbler"
JR North wrote:
What exactly broke? BTW, want a real HF POS-get the 5.00 potato french fry maker. Lasted exactly one potato. JR Dweller in the cellar Why are you bitching? You got exactly what it said. POTATO french fry maker Not POTATOES jk |
#23
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Do not buy a Harbor Freight "rock tumbler"
"Ignoramus12281" wrote in message ... On 2010-05-28, Michael Koblic wrote: snip I got the media on the cart with the machine at the factory that went bankrupt. Two half full buckets and a box of ceramic media of various coarseness, and this vibratory tumbler. I also have some corn cob media (way too much; anyone wants some cheap?). I was going to polish a big jar's worth of pennies with the kids this weekend. i I use aquarium gravel to clean my metal detector finds coins that I want to spend, they look at you funny when you give them brown quarters, dimes, & nickels! RogerN |
#24
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-28, Gunner Asch wrote:
On Thu, 27 May 2010 21:02:38 -0500, Ignoramus12281 wrote: But thanks for the links. That Nova 501HT looks a serious machine. BTW is this where you get your media from? $1.50 +/- per lb of ceramics is very good. I wonder if they ship to Canada... I got the media on the cart with the machine at the factory that went bankrupt. Two half full buckets and a box of ceramic media of various coarseness, and this vibratory tumbler. I also have some corn cob media (way too much; anyone wants some cheap?). I was going to polish a big jar's worth of pennies with the kids this weekend. Pennies? Then your corncob media is what you want to use. Ceramic media will give you either badly beaten up but very shiney pennies..or copper disks with barely visible features on it. I think that ceramic media would simply grind the pennies to dust. I have maybe 5 lbs of pennies, it should be fun polishing them. Frankly..Id use crushed walnut hulls for the job, with a teaspoon of Brasso tossed into the batch..and checked REGULARLY. I will see, I think that I will give then an hour with fine corn cob media. Gunner, who cleans firearms brass in a vibratory cleaner about 2' in diameter....with walnut hulls That's huge! Mine is only 17 inches in diameter. i |
#25
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-28, RogerN wrote:
"Ignoramus12281" wrote in message ... On 2010-05-28, Michael Koblic wrote: snip I got the media on the cart with the machine at the factory that went bankrupt. Two half full buckets and a box of ceramic media of various coarseness, and this vibratory tumbler. I also have some corn cob media (way too much; anyone wants some cheap?). I was going to polish a big jar's worth of pennies with the kids this weekend. i I use aquarium gravel to clean my metal detector finds coins that I want to spend, they look at you funny when you give them brown quarters, dimes, & nickels! Do you get any bad silica dust from it? i |
#26
Posted to rec.crafts.metalworking
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Do not buy a Harbor Freight "rock tumbler"
"Ignoramus26467" wrote in message ... On 2010-05-28, RogerN wrote: "Ignoramus12281" wrote in message ... On 2010-05-28, Michael Koblic wrote: snip I got the media on the cart with the machine at the factory that went bankrupt. Two half full buckets and a box of ceramic media of various coarseness, and this vibratory tumbler. I also have some corn cob media (way too much; anyone wants some cheap?). I was going to polish a big jar's worth of pennies with the kids this weekend. i I use aquarium gravel to clean my metal detector finds coins that I want to spend, they look at you funny when you give them brown quarters, dimes, & nickels! Do you get any bad silica dust from it? i I don't know, there was water in it too. No dust, just bubbles. RogerN |
#27
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Do not buy a Harbor Freight "rock tumbler"
"Ignoramus12281" wrote in message ... [...] But thanks for the links. That Nova 501HT looks a serious machine. BTW is this where you get your media from? $1.50 +/- per lb of ceramics is very good. I wonder if they ship to Canada... I got the media on the cart with the machine at the factory that went bankrupt. Two half full buckets and a box of ceramic media of various coarseness, and this vibratory tumbler. I also have some corn cob media (way too much; anyone wants some cheap?). I was going to polish a big jar's worth of pennies with the kids this weekend. Lucky man. I got my corncob from the pet store for $6/ 1.8 kg. Enough to fill the bowl and have a lot left over. I run some brass in it but it has limitations. Right now I have a batch going in rouge-treated walnut shells. Somebody mentioned adding Brasso - I wonder how much per batch. As I said I tried a silica crystals cat litter on some steel parts. The results were surprisingly good but if run dry, the silica dust is awful and if wet, clumping occurs (duh, it's cat litter!) I want the ceramics for steel parts and also plastics for de-burring brass - I am not sure the nut shells will do that job well. -- Michael Koblic, Campbell River, BC |
#28
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Do not buy a Harbor Freight "rock tumbler"
On Fri, 28 May 2010 09:23:47 -0500, Ignoramus26467
wrote: On 2010-05-28, Gunner Asch wrote: On Thu, 27 May 2010 21:02:38 -0500, Ignoramus12281 wrote: But thanks for the links. That Nova 501HT looks a serious machine. BTW is this where you get your media from? $1.50 +/- per lb of ceramics is very good. I wonder if they ship to Canada... I got the media on the cart with the machine at the factory that went bankrupt. Two half full buckets and a box of ceramic media of various coarseness, and this vibratory tumbler. I also have some corn cob media (way too much; anyone wants some cheap?). I was going to polish a big jar's worth of pennies with the kids this weekend. Pennies? Then your corncob media is what you want to use. Ceramic media will give you either badly beaten up but very shiney pennies..or copper disks with barely visible features on it. I think that ceramic media would simply grind the pennies to dust. I have maybe 5 lbs of pennies, it should be fun polishing them. Frankly..Id use crushed walnut hulls for the job, with a teaspoon of Brasso tossed into the batch..and checked REGULARLY. I will see, I think that I will give then an hour with fine corn cob media. Gunner, who cleans firearms brass in a vibratory cleaner about 2' in diameter....with walnut hulls That's huge! Mine is only 17 inches in diameter. i There is more than one reason Im called Gunner...shrug Gunner -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#29
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Do not buy a Harbor Freight "rock tumbler"
On Fri, 28 May 2010 17:39:45 -0700, "Michael Koblic"
wrote: "Ignoramus12281" wrote in message m... [...] But thanks for the links. That Nova 501HT looks a serious machine. BTW is this where you get your media from? $1.50 +/- per lb of ceramics is very good. I wonder if they ship to Canada... I got the media on the cart with the machine at the factory that went bankrupt. Two half full buckets and a box of ceramic media of various coarseness, and this vibratory tumbler. I also have some corn cob media (way too much; anyone wants some cheap?). I was going to polish a big jar's worth of pennies with the kids this weekend. Lucky man. I got my corncob from the pet store for $6/ 1.8 kg. Enough to fill the bowl and have a lot left over. I run some brass in it but it has limitations. Right now I have a batch going in rouge-treated walnut shells. Somebody mentioned adding Brasso - I wonder how much per batch. Try a tablespoon full. It spreads rather well and is simply a media compound that is carried by your media. As I said I tried a silica crystals cat litter on some steel parts. The results were surprisingly good but if run dry, the silica dust is awful and if wet, clumping occurs (duh, it's cat litter!) I want the ceramics for steel parts and also plastics for de-burring brass - I am not sure the nut shells will do that job well. Yes..they do a pretty fair job, though for steel, it takes a while. Soft non ferris stuff goes pretty quick Gunner -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#30
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Do not buy a Harbor Freight "rock tumbler"
"Gunner Asch" wrote in message ... [...] I got my corncob from the pet store for $6/ 1.8 kg. Enough to fill the bowl and have a lot left over. I run some brass in it but it has limitations. Right now I have a batch going in rouge-treated walnut shells. Somebody mentioned adding Brasso - I wonder how much per batch. Try a tablespoon full. It spreads rather well and is simply a media compound that is carried by your media. Thanks. What do you do when you finish? Do you re-use the same media? As I said I tried a silica crystals cat litter on some steel parts. The results were surprisingly good but if run dry, the silica dust is awful and if wet, clumping occurs (duh, it's cat litter!) I want the ceramics for steel parts and also plastics for de-burring brass - I am not sure the nut shells will do that job well. Yes..they do a pretty fair job, though for steel, it takes a while. Soft non ferris stuff goes pretty quick So far I am more impressed with the nut shells than with the corn cob. As far as I can see the corn cob will polish clean brass but will not remove stains. The treated nut shells removed most but not all the stains, did a great job polishing the pieces (up to 3") but did little or no deburring (minor scratches still apparent after about 8 hours). The next batch I shall put some steel in the nut shells. What compound do you use for steel? There is a ton of proprietary compounds out there. I hear some people just put in a bit of turtle wax. I run the silica with just water and dish- washing liquid with the predictable result of good cleaning but flash rusting. I wonder if dumping in a bit of Evaporust would work. -- Michael Koblic, Campbell River, BC |
#31
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Do not buy a Harbor Freight "rock tumbler"
On Sat, 29 May 2010 17:35:18 -0700, "Michael Koblic"
wrote: "Gunner Asch" wrote in message .. . [...] I got my corncob from the pet store for $6/ 1.8 kg. Enough to fill the bowl and have a lot left over. I run some brass in it but it has limitations. Right now I have a batch going in rouge-treated walnut shells. Somebody mentioned adding Brasso - I wonder how much per batch. Try a tablespoon full. It spreads rather well and is simply a media compound that is carried by your media. Thanks. What do you do when you finish? Do you re-use the same media? But of course. Brasso wont hurt anything and it adds a bit of polishing action to whatever you put in there. More for the softer stuff, less for the harder stuff. I tend to reuse walnut hulls for many years. Its not so much the sharp corners..which after a while..are gone..but its a great carrier for Brasso, etc. even when rounded off. Brasso is nothing more than a very fine media in a liquid carrier. As I said I tried a silica crystals cat litter on some steel parts. The results were surprisingly good but if run dry, the silica dust is awful and if wet, clumping occurs (duh, it's cat litter!) I want the ceramics for steel parts and also plastics for de-burring brass - I am not sure the nut shells will do that job well. Yes..they do a pretty fair job, though for steel, it takes a while. Soft non ferris stuff goes pretty quick So far I am more impressed with the nut shells than with the corn cob. As far as I can see the corn cob will polish clean brass but will not remove stains. The treated nut shells removed most but not all the stains, did a great job polishing the pieces (up to 3") but did little or no deburring (minor scratches still apparent after about 8 hours). Ayup. It has little or no ability to remove burrs in anything hard. Add a bit more Brasso..another table spoon and it will likely remove the last bit of stains..which generally are etched into the material..just a heads up. Might not be deep..but walnut hulls have little ability to actually remove much metal. The next batch I shall put some steel in the nut shells. What compound do you use for steel? There is a ton of proprietary compounds out there. I hear some people just put in a bit of turtle wax. I run the silica with just water and dish- washing liquid with the predictable result of good cleaning but flash rusting. I wonder if dumping in a bit of Evaporust would work. Are you trying to deburr, destain or what? Walnut hulls are really not much good for anything as hard as steel, other than for putting a nice almost matt finish on it. Ceramics are what you need for steel. What are you trying to do with the steel? Let us know and Im sure you will have a lot of suggestions..some even good. VBG Gunner -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#32
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-30, Michael Koblic wrote:
So far I am more impressed with the nut shells than with the corn cob. As far as I can see the corn cob will polish clean brass but will not remove stains. The treated nut shells removed most but not all the stains, did a great job polishing the pieces (up to 3") but did little or no deburring (minor scratches still apparent after about 8 hours). Well, after appx. 3-4 hours of polishing, corn cob media did remove stains from old coins (whole layer of oxidation). It did work very well, just slowly. The next batch I shall put some steel in the nut shells. What compound do you use for steel? There is a ton of proprietary compounds out there. I hear some people just put in a bit of turtle wax. I run the silica with just water and dish- washing liquid with the predictable result of good cleaning but flash rusting. I wonder if dumping in a bit of Evaporust would work. What kind of Brasso are you guys talking about? i |
#33
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Do not buy a Harbor Freight "rock tumbler"
On Sat, 29 May 2010 23:15:43 -0500, Ignoramus6711
wrote: On 2010-05-30, Michael Koblic wrote: So far I am more impressed with the nut shells than with the corn cob. As far as I can see the corn cob will polish clean brass but will not remove stains. The treated nut shells removed most but not all the stains, did a great job polishing the pieces (up to 3") but did little or no deburring (minor scratches still apparent after about 8 hours). Well, after appx. 3-4 hours of polishing, corn cob media did remove stains from old coins (whole layer of oxidation). It did work very well, just slowly. The next batch I shall put some steel in the nut shells. What compound do you use for steel? There is a ton of proprietary compounds out there. I hear some people just put in a bit of turtle wax. I run the silica with just water and dish- washing liquid with the predictable result of good cleaning but flash rusting. I wonder if dumping in a bit of Evaporust would work. What kind of Brasso are you guys talking about? i http://en.wikipedia.org/wiki/Brasso -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#34
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-30, Gunner Asch wrote:
On Sat, 29 May 2010 23:15:43 -0500, Ignoramus6711 wrote: On 2010-05-30, Michael Koblic wrote: So far I am more impressed with the nut shells than with the corn cob. As far as I can see the corn cob will polish clean brass but will not remove stains. The treated nut shells removed most but not all the stains, did a great job polishing the pieces (up to 3") but did little or no deburring (minor scratches still apparent after about 8 hours). Well, after appx. 3-4 hours of polishing, corn cob media did remove stains from old coins (whole layer of oxidation). It did work very well, just slowly. The next batch I shall put some steel in the nut shells. What compound do you use for steel? There is a ton of proprietary compounds out there. I hear some people just put in a bit of turtle wax. I run the silica with just water and dish- washing liquid with the predictable result of good cleaning but flash rusting. I wonder if dumping in a bit of Evaporust would work. What kind of Brasso are you guys talking about? i http://en.wikipedia.org/wiki/Brasso OK, more exactly, do you use liquid brasso or some kind of powder? I have the liquid brasso at home. i |
#35
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Do not buy a Harbor Freight "rock tumbler"
On Sat, 29 May 2010 23:38:20 -0500, Ignoramus6711
wrote: On 2010-05-30, Gunner Asch wrote: On Sat, 29 May 2010 23:15:43 -0500, Ignoramus6711 wrote: On 2010-05-30, Michael Koblic wrote: So far I am more impressed with the nut shells than with the corn cob. As far as I can see the corn cob will polish clean brass but will not remove stains. The treated nut shells removed most but not all the stains, did a great job polishing the pieces (up to 3") but did little or no deburring (minor scratches still apparent after about 8 hours). Well, after appx. 3-4 hours of polishing, corn cob media did remove stains from old coins (whole layer of oxidation). It did work very well, just slowly. The next batch I shall put some steel in the nut shells. What compound do you use for steel? There is a ton of proprietary compounds out there. I hear some people just put in a bit of turtle wax. I run the silica with just water and dish- washing liquid with the predictable result of good cleaning but flash rusting. I wonder if dumping in a bit of Evaporust would work. What kind of Brasso are you guys talking about? i http://en.wikipedia.org/wiki/Brasso OK, more exactly, do you use liquid brasso or some kind of powder? I have the liquid brasso at home. i The liquid. Simply fill up a tablespoon with the stuff..maybe two..and dump it into the media if its walnut hulls, corn cobs etc etc. Works great, less filling! Gunner -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#36
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Do not buy a Harbor Freight "rock tumbler"
On 2010-05-30, Gunner Asch wrote:
What kind of Brasso are you guys talking about? http://en.wikipedia.org/wiki/Brasso OK, more exactly, do you use liquid brasso or some kind of powder? I have the liquid brasso at home. The liquid. Simply fill up a tablespoon with the stuff..maybe two..and dump it into the media if its walnut hulls, corn cobs etc etc. I am running it with Brasso now... thanks for a great tip... i |
#37
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Do not buy a Harbor Freight "rock tumbler"
On Sun, 30 May 2010 09:29:59 -0500, Ignoramus28053
wrote: On 2010-05-30, Gunner Asch wrote: What kind of Brasso are you guys talking about? http://en.wikipedia.org/wiki/Brasso OK, more exactly, do you use liquid brasso or some kind of powder? I have the liquid brasso at home. The liquid. Simply fill up a tablespoon with the stuff..maybe two..and dump it into the media if its walnut hulls, corn cobs etc etc. I am running it with Brasso now... thanks for a great tip... i Give it a couple hours at the least. Its a very fine abrasive, but it works pretty damned well. Gunner -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#38
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Do not buy a Harbor Freight "rock tumbler"
On Sun, 30 May 2010 11:19:11 -0700, Gunner Asch
wrote: On Sun, 30 May 2010 09:29:59 -0500, Ignoramus28053 wrote: On 2010-05-30, Gunner Asch wrote: What kind of Brasso are you guys talking about? http://en.wikipedia.org/wiki/Brasso OK, more exactly, do you use liquid brasso or some kind of powder? I have the liquid brasso at home. The liquid. Simply fill up a tablespoon with the stuff..maybe two..and dump it into the media if its walnut hulls, corn cobs etc etc. I am running it with Brasso now... thanks for a great tip... i Give it a couple hours at the least. Its a very fine abrasive, but it works pretty damned well. Gunner Brasso also has ammonia in it, which is the active ingredient in a lot of copper fouling bore cleaners. However, it's only at 2-3% You can google the msds. I've used exactly the same thing, Brasso on walnut hulls, for a long time for brass for reloading. I now have some stuff from Dillon. Pete Keillor |
#39
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Do not buy a Harbor Freight "rock tumbler"
On Sun, 30 May 2010 13:31:38 -0500, Pete Keillor
wrote: On Sun, 30 May 2010 11:19:11 -0700, Gunner Asch wrote: On Sun, 30 May 2010 09:29:59 -0500, Ignoramus28053 wrote: On 2010-05-30, Gunner Asch wrote: What kind of Brasso are you guys talking about? http://en.wikipedia.org/wiki/Brasso OK, more exactly, do you use liquid brasso or some kind of powder? I have the liquid brasso at home. The liquid. Simply fill up a tablespoon with the stuff..maybe two..and dump it into the media if its walnut hulls, corn cobs etc etc. I am running it with Brasso now... thanks for a great tip... i Give it a couple hours at the least. Its a very fine abrasive, but it works pretty damned well. Gunner Brasso also has ammonia in it, which is the active ingredient in a lot of copper fouling bore cleaners. However, it's only at 2-3% You can google the msds. I've used exactly the same thing, Brasso on walnut hulls, for a long time for brass for reloading. I now have some stuff from Dillon. Pete Keillor What did you get and how does it work? Gunner -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#40
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Do not buy a Harbor Freight "rock tumbler"
On Sun, 30 May 2010 13:06:09 -0700, Gunner Asch
wrote: On Sun, 30 May 2010 13:31:38 -0500, Pete Keillor wrote: On Sun, 30 May 2010 11:19:11 -0700, Gunner Asch wrote: On Sun, 30 May 2010 09:29:59 -0500, Ignoramus28053 wrote: On 2010-05-30, Gunner Asch wrote: What kind of Brasso are you guys talking about? http://en.wikipedia.org/wiki/Brasso OK, more exactly, do you use liquid brasso or some kind of powder? I have the liquid brasso at home. The liquid. Simply fill up a tablespoon with the stuff..maybe two..and dump it into the media if its walnut hulls, corn cobs etc etc. I am running it with Brasso now... thanks for a great tip... i Give it a couple hours at the least. Its a very fine abrasive, but it works pretty damned well. Gunner Brasso also has ammonia in it, which is the active ingredient in a lot of copper fouling bore cleaners. However, it's only at 2-3% You can google the msds. I've used exactly the same thing, Brasso on walnut hulls, for a long time for brass for reloading. I now have some stuff from Dillon. Pete Keillor What did you get and how does it work? Gunner Just their Rapid Polish 290, still in my 30 yr. old Thumler's Tumbler. It works at least as good as Brasso, doesn't have the ammonia. They claim it doesn't weaken the brass like Brasso, but I had very few case failures loading .357 brass over and over for years using Brasso. I lost my 50 lb. bag of walnut hulls in a move, so I'm using some Lyman media right now. Pete |
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