I’m reconfiguring my printing closet (~6’x6’) for a new printer and thought about enclosing the printer in a moderate sized cabinet (~2’x3’x6’ - one “shelf” of the closet) for thermal control. Since there will be inevitable opening and closing, as well as just normal infiltration of the ambient air (usu ~65F between 40-75% RH) it would seem like a good application for a Peltier dehumidifier to keep the RH in the chamber low and reduce my need to re-dry filament which has been on the machine during (inevitable) multi-day or -week downtime between projects.
Interesting technology those peltier dehumidifiers. I had never heard of them.
My question would be about efficiency. I could imagine this working well in a very humid environment to save your filament.
From my limited understanding of the physics of wet air I would imagine that it’s tough to remove humidity via condensation when the air is already pretty dry.
Why not just remove the spool after your last job of the day and store it in a plastic zip-lock bag? That saves power, production of a peletier dehumidifier and cost of buying one. I do this and never had trouble with wet filament.
In Florida, I run a dehumidifier in my garage, and it pulls a couple gallons a day. It’ll get uncomfortably dry, if you let it. It’ll keep the relative humidity down around 25%, according to its display.
I’ve used those pellets before too. They get used up almost immediately, even in a vacuum sealed bag.
I have a smaller dehumidifier in my bedroom. I think it cost me around 30 bucks and it also keeps things super dry. Once I have a relatively sealed space for my filament I’ll probably put one in there too.