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Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

OMTech Laser: It Was The Focus Pen Wire

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Because the focus pen worked on the bench, I was certain this had to be true:

OMTech focus pen - failed 24V wire
OMTech focus pen – failed 24V wire

There is a break somewhere along the blue wire carrying 24 V to the focus pen. The signal and 0 V wires are fine.

I updated the original post, because I’m going to use that picture a lot whenever the subject of laser machine wiring comes up.

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