I have a MARS-130 100W purchased from Thunder Laser in October 2015. So far the machine has been great, however after a particularly messy job I decided to remove the mirrors and give them a clean. This is the first time I'd had a go at removing and cleaning the mirrors.
After reinstalling the mirrors, the first problem was the laser guide pointer no longer pointed at the final mirror. We followed the instructions on this video: https://www.youtube.com/watch?v=wY5D27TQwZI to realign the mirrors. Our effort seemed successful (laser lines up near and far for both mirrors), but we can no longer achieve the same power output as with before the cleaning, especially towards the right and the bottom of the cutting table, ie. the further the head is from the laser tube, the weaker the power.
I've read through this forum and many others, but I haven't had any luck so far. So far I've:
- Done a mirror alignment check (near and far dots are same point)
- Checked the output is centred leaving the laser head
- Checked the bed is level
- Checked the beam splitter is clean
- Cleaned the lens