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Gemstones, Minerals & Fossils
Lapidary
Thin copper Laps
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<blockquote data-quote="MarcusH" data-source="post: 635080" data-attributes="member: 22641"><p>I have four thin copper laps but have no idea what grit has been used on them. They are old and look a bit dirty and some have slight corigation marks. I have taken one and started to lap the surface with grinding paste and will work from 80grit down to 1200 or better. I think they should have an even shine and not a patchwork of dark and light. They all seem to have been scratched as the method of charging was to scratch the surface. I'll use the roller bearing technique. I am new at this so please excuse my ignorance. Take care</p></blockquote><p></p>
[QUOTE="MarcusH, post: 635080, member: 22641"] I have four thin copper laps but have no idea what grit has been used on them. They are old and look a bit dirty and some have slight corigation marks. I have taken one and started to lap the surface with grinding paste and will work from 80grit down to 1200 or better. I think they should have an even shine and not a patchwork of dark and light. They all seem to have been scratched as the method of charging was to scratch the surface. I'll use the roller bearing technique. I am new at this so please excuse my ignorance. Take care [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Thin copper Laps
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