The standard mechanism for drying filament is to put it in the oven for a while. I started getting strange results with my PETG because I got lazy and left it out between prints. I wanted to fix the issue but wasn't keen about putting plastics in my oven. I wondered about other methods and the silica gel packets came to mind. Those are the little packets that come with shoes and other things and say DO NOT EAT. I was skeptical about the power of these to reverse the absorption that had already taken place, at least not in a timely fashion. Also, I like to tinker and wanted to experiment with weird ideas.
I like to sous vide and had recently gotten a food vacuum sealer with an attachment for sucking the air out of wine bottles. I could seal the filament spools in a vacuum bag with some desiccant but I felt like it would work better if I could get closer to a proper vacuum. I didn't want to invest in a high-grade vacuum chamber and pump for an experiment. I started looking around and found the FoodSaver Quick Marinator; a rigid container with a valve for the hose that connected the vacuum sealer to attachments.
- Off-brand food vacuum sealer
- The FoodSaver Quick Marinator
- The vacuum sealer attachment hose
- Coffee Filters
- Flower desiccant powder