A Ring from a Quarter Max was visiting and wanted to try something he had seen on an Internet video. He wanted to make a ring from a quarter. He wants to have one from his home state of Pennsylvannia...this one was the beta test.
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First order of business was to create some blanks with holes in the center. A jig to hold the coin was made with a Forstner bit hole the size of a quarter. Then a switch to a metal twist bit to create the hole. The coin rotated in the hole so we moved to a second option. |
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After having created a centered dimple in all of the coins, a metal vise was used to hold the coin steady. The vise was pushed against the fence and a wooden backer was used. |
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The dimpled center point was then lined up and the hole was drilled. |
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After making 7-8 blanks, three were selected. |
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The blank was then fitted onto a ring mandrel. This is an old one that my grandmother had used in her general store. |
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A piece of PVC was then placed over the mandrel to push the ring further down the shaft to size it. Max wears a 10 1/2.
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The forming of the ring... |
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This image shows the state print... |
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The ring was then worked on a DMT lapping plate and a 220 grit sanding pad. |
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A final polishing finish was done on a Naniwa 12000 grit stone.
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The test fit... |
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