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<p>[QUOTE=&quot;mrz1988, post: 717726, member: 21121&quot;]I&#039;ve heard of people making these kind of machines in their basement.&nbsp; Couldn&#039;t tell you how exactly, but I bet if I sat down for a few hours and played with numbers I could make a start on a blueprint.&nbsp; It definitely has something to do with sorting them by weight, the 2.5g coins being zinc and 3.1g coins being copper.&nbsp; It looks like it sorts out the canadians as well, which probably have a third weight.</p><p><br /></p><p>I&#039;m in engineering school so if I don&#039;t put this to the side of my mind I might lose a lot of sleep tonight... haha[/QUOTE]</p><p><br /></p>

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