Coolant reservoir?

Do I need to be watching coolant levels? I noticed there is a resovoir that looks like it gets filled… Is this a yearly maintenance or more often if at all?

1 Like

It’s supposed to be a closed system, so you shouldn’t normally have to add anything. We’ll probably have to deal with it when it comes time to replace the laser tube but so far Glowforge hasn’t released any details about tube replacement.


Thanks @tim1724! Glowforge has an internal liquid coolant reservoir that recirculates through the glass laser tube and through an aluminum cooling block. No outside maintenance is necessary.