I set up my fiber laser (Monport MOPA W30) about two months ago and then did a lot of engraving. The results looked great. So I saved all the settings with screenshots and an export of the settings.
Today, two months later, I wanted to laser again.
But the laser engraved in a completely different place (a few mm off). In addition, the engraving result is no longer correct (depth and accuracy).
What could be the reason for this? I have checked the device settings and all settings are 100% the same as last time. I have not used the laser for 2 months. Is it normal that everything has shifted now?
Do I need to recalibrate it? Is that normal?