I installed my laser today and I have questions for Kris and Andy.
I got the laser that Kris put a link to in his post. It looks like it is 5W max and 3W continuous.
I powered it up and drew free hand with it and it seemed to do OK.
So, I made a mount and attached it to the Long Mill. Today, I lengthened the fan and laser wires and tested it again. (I had not wired it into the Mill controller at that point.) The fans ran and the laser powered up, but it would not burn anything. I removed the long wires and tried again. It burned well with the shorter wires.
So, I thought that maybe the wire that I was using was too light to carry the current that the laser needs. I replaced the long wire with a length of 16 gauge speaker wire. This time, the laser did burn, but not as strongly as it did with the short wires.
Have either of you experienced this and if so, how did you address it?
Is there any adjustment on the driver that may help? I can’t see one. There is a potentiometer on the board, but I have no idea what it does.
I can mount the driver on the X/Z gantry so that I can keep the short wires, but then I will need a long wire going to the Long Mill controller. Do you have any thoughts on how this would work out?
Finally, does wiring it into the Long Mill controller and allowing it to control the laser have any effect on its ability to burn?
Thanks for any advice you can offer.