Has anybody used one of these mini "dehumidifiers" to dry out filament as a substitute for buying a bunch of the desiccant beads? My filament seems OK, but I could do better to keep it dry.
this post was submitted on 30 Jun 2023
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I had good results with microwaving a bunch of beads in a microwave safe non-plastic bowl on mid-low.
It drives out the moisture, and you can see the bead colour indicators change.
But be careful, they’re hot!
Also if you're using blue indicating silica gel, NPS recommends that you wear gloves, lab coat, safety goggles and respirator with HEPA when handling it. I'm guessing they'e talking about larger quantities, but you probably want to minimise any amount of cobalt chloride you inhale or get in contact with your skin.
The manufacturer of the desiccant beads I got strongly advised to not microwave them since the very sudden change from bound liquid water to steam can lead to the beads bursting/cracking. Slowly drying them in an oven at the recommended temperature (can depend by manufacturer, mine said 110-120°C) is the better choice.
That looks like it should work very well. I will certainly try.