Re: PYE PF1 Refurbishment?
Hello John, it has to be all the way around I'm afraid. I suppose the weld was done ultrasonically originally.
A stanley knife would do it but I seem to remember using one of those blades with the same shape as a razor blade, maybe a bit thicker than that and a safe edge created by a stamped on metal strip. As these are parallel sided but thinner they don't force the two sides apart so much.
The case width is about 2mm on the sides increasing to nearer 4mm on the corners because it follows the oval shape of the cells. If you keep to the weld line going in a bit too deep is not much of an issue.
Good luck.
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