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- Apr 29, 2019
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The fotofoil type process does not leave an edge that can be felt, you are just etching enough to remove the black anodizing, not actually etching into the aluminum.
On a PCB you are romoving .001 to .003 of copper, you will feel that much of an edge.
On a PCB you are romoving .001 to .003 of copper, you will feel that much of an edge.