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The Magic Cafe Forum Index » » The workshop » » Coin gaffing and lathes (0 Likes) Printer Friendly Version

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Profile of Franky33
On 2009-06-12 11:57, tabman wrote:
Unimat. The Johnson coins were prototyped on a Unimat. Cheap on Ebay. A nice outfit around $500.


That Unimat looks cool. I wish I had something that I needed to make to justify buying one. At least I now know that it exists. Thanks for the heads up.
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Profile of vampiro
Hey, don't call/email people in the know of expanded shells, to reveal their secrets. They get pretty *)*)*)(*)(*) upset about being asked.
I guess this is a trade secret. There are actually several ways to make them, but they all take a bit of time and expense.
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Profile of Paul_Rheaume
@ tabman the very first Johnson coins were made by Sheldon Atterbury on a small 6" craftsman lathe. (i saw it in his garage). He and C Johnson took the prototypes to Sam Laport (who later bought the business and became Johnson products). Sammy Laport used a Logan lathe with collets to hold the coins (made them special). The expanded shells were made from all silver coins using a spinnning process to expand the coin as it was held (barely grabbed) by the outer edges. He also ran the lathe in reverse for this process (am not sure why, but I believe it was to get a better finish inside). I was there.
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