For the lasing to occur the tube has to be at resonance to properly lase. If these fields change, the beam is no longer powerful in the center with the power getting less to the outer edge.
This is my tube going south… you can see the power is mostly on the right and there is no power in the lower center.
I had cut some thick acrylic and I always run through an alignment before the job. That was a Friday and it was aligned in < 5 minutes. The m1 target was dead center and looked perfect.
Tuesday morning, it acted up, the target is as you see, it went from great to bad in three days of no use…? Even moving the beam off center that close to the tube.
I had to keep aligning it until the new tube arrived. It was so far off it started hitting the nozzle on the way out… at the best alignment point…
It probably would if you find the lowest consistent lase percentage and set the Ruida to pulse for a very short duration. You can always stick a 2X4 in there … You will have to figure out how to do this, one way or the other…
Let us know how you make out…
