Formlabs Form 2 galvanometers calibration after opening

As Most of the form 2 user must experienced, after while the print quality of form 2 will reduce due to dusts on mirrors, the official way of formlabs form take long time to open and doesn&let you to clean the galvanometers mirrors well. so I opened galvanometers then clean them without any limitations and then install them and calibrating like as the video i posted, hope it helps you.