Keeping Filament Dry on a Budget – My PolyDryer to Cereal Box Adapter I store filaments in 4L cereal boxes (cheap, airtight, stackable) and use a PolyDryer, but Polymaker’s drying box is pricey. So, I made an adapter! 🔹 Quick install – Fits the small round lid, no full lid removal. 🔹 Already Version 5 ! (I tweaked the design multiple times) 🔹 Print in PLA or PETG – No supports needed! Plug & play! Got feedback or ideas? Let me know! 💬