Hello Bob, can you please provide some pictures of the LaserBoard and wiring? We always ask for pictures and try to go through some diagnostics to start with. We’ll definitely want to see a photo of the large connector that goes between the LaserBoard and the LPSU since that controls the laser firing.
Let’s also get some photos of the LPSU, and any text or labels where the wires connect to it. Confirming everything is wired up correctly is our goal.
Thanks for the photos. Sadly the four wires running from the LPSU to the LaserBoard are all the same color. Blue is great color, but makes it hard to tell what is what.
If you check out our LPSU guide you’ll see that most (but not all) K40 laser power supplies have the wires in this order from left to right: 24V, G, 5V, L. We need to ensure that the correct wires from the LPSU connect to the appropriate places on the LaserBoard connector. We really only care about G and L as those two are needed to fire the laser.
Would you be able to check that the wires are all connecting in the correct place? You may need to unplug the connector from the LPSU to check the labels to see which wire is which. Again, we just need G and L going to the correct place on the LaserBoard.