Has Support asked you to print this ?
If not you should do so, it’s a very good way to see if the optical surfaces are clean or not.
If the pillars loot like this it’s not good :
If they look like this you’re fine :
I would also recommend looking at this page for cleaning methods :
https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=9025
In particular the “Drop and Drag Method” which is dead efficient. I have never had to remove the galvo blocks to clean my machines but it’s definitely more challenging.