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electro1622
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electro1622

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you can use borax as flux to get rid of scale before you pour your mold. Just grind it up into a powder and add a bit of water till you get a paste...easy.
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+electro1622 yeah i figured it needs a good clean. I think if i give it a good polish it should hopefully not need new rollers. Did not know that about minted vs home made but makes sense if you want to sell it. I'm happy to use this stuff for learning, and making mistakes on something i have melted. At the moment it is a case of-I know its silver that's all that counts.
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electro1622

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That was nice of Cody to take you flying like that...a good example of Alaskan hospitality..
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electro1622

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Hi Frank
nice EPG winder in the background..
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+electro1622 yea it works great
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electro1622

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man...your driving on the wrong side of the road..!!
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electro1622

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Hi Brad
If you irrigate a cutting wheel on your grinder etc with water, you can grind ferrite without too much trouble.This will let you modify a ferrite ring easily to leave room for a wire coil. If you were able to fix those dental hand motors I sent you, you could get diamond bits which chew through the ferrite no problem.Pretty cheap as well.I did a video showing this a while ago.
https://www.youtube.com/watch?v=OM9OX8YDBg0
In this video I shape a ferrite rod. hope this helps.
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electro1622

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you get a much better result using copper sulphate solution..power needed is 1v  @ 120 milliamps for about 8 hours for 1/2 mm thick plate. I did a video showing results.
https://www.youtube.com/watch?v=7duCWRhWUTc
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electro1622

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twice a week on stan meyer stuff...:0
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electro1622

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When I was an apprentice my boss had an edm..he kept going on about the water had to be de-ionized for it to work properly, anyway, great project you got there.
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electro1622

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lol...
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electro1622

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Under the microscope, the crown looks like it was forged, this would explain the hardness as well.
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electro1622

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nice electropolisher..if you sort the solution and amperage, you should be able to get a shine in that object as well as strip the gold..
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you have to buy it..contains cyanide of some sort so is a little hazardous..you can get it at jewelers supply company's..gold plating solution is different to stripping solution..plating solution has gold in solution in ionic form and is sold with a particular weight of gold per litre. so is not that cheap, but it goes a long way.
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