Does anyone have a US-based source for these parts? I’d love to do a better job of keeping filament dry. These look interesting. But cross-the-ocean shipping for onesies is often discouraging.
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Not sure which one you are referring to but here is a quick Amazon Search
Sorry, no. This is a very different design from anything on Amazon. It’s a very specific part. It basically actively moves humidity from one side to the other, and so would be installed in the side of a dry box and then you would never need chemical drying agents or silica gel.
Thanks! It looks like those are gas-driven, either positive gas supply or vacuum, whereas Rosahl have electrically-driven membrane dehumidifiers. Electric membrane dehumidifiers seem to me probably a better choice for a hobbyist.
[Edit: fixed the topic description to be clearer…]
That’s actually a pretty nifty bit of tech. They are using electrolysis to break down the water and transporting the resulting hydrogen ions across the membrane, sort of like a fuel cell, and then reducing the H+ ions back to water with atmospheric O2.
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