I’ve seen many debates about the need to dry PLA filaments. Looks like some people never need to do anything while others dry the hell out of them before printing.

I’ve been recommended once to print at 10% RH… After 48h of drying, I can barely get below 37%…

So: what’s the humidity level in the room your printer is?

  • Dennis@social.lol
    1·
    7 days ago

    @matlag My printers are in the basement. During the winter, it’s dry enough. During the summer, it measures at >80% humidity. I’ve got a dehumidifier but can only get it down to around 60%.

    In this situation PETG can only sit out for maybe 3 days before it’s noticeably wet.

    I’ve still never had a moisture problem with PLA. It tends to simply be an age thing. PLA gets brittle and snaps when under constant pressure, say where it loads into an extruder or AMS.