Fix the worst 3D printing problem with a box. How to dry filament?

Опубликовано: 11 Июль 2026
на канале: 3DHumbe
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💧 Damp filament is one of the most annoying problems in 3D printing.

🧵 When filament absorbs moisture from the environment, it can start printing poorly: stringing, bubbles, poor extrusion, weak parts, and even jams can appear during printing.

📦 In this video, I show you how I made a homemade filament dryer using only a box, a pen, and the heated bed of a 3D printer.

🔥 The idea is to mimic the basic operation of a commercial filament dryer: applying heat to evaporate the moisture and allow it to escape from the system.

🛠️ To do this, we cut the bottom off the box, placed it on the heated bed, and used small holes in the lid to prevent moisture from getting trapped inside.

🧠 This trick doesn't necessarily replace a professional dryer, but it can be a simple and useful solution for makers who have old, damp, or improperly stored filament. -
💡 Main idea:
Sometimes the problem isn't your printer.

It's your filament.

💬 Has a wet filament ever ruined a 3D print for you?

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