Proper storage of resin and filament is crucial for maintaining their quality and ensuring successful 3D prints. Both materials can degrade or become unusable if not stored correctly. Below, we will discuss best practices for storing resin and filament, as well as common issues that may arise and how to fix them.

Storing 3D Printing Filament

  1. Keep Filament Dry:
    • Why: Filament, especially hygroscopic materials like Nylon and PVA, can absorb moisture from the air, leading to poor print quality.
    • How to Fix:
      • Store filament in airtight containers with desiccant packs to absorb moisture.
      • Use vacuum-sealed bags for long-term storage.
  2. Maintain a Stable Temperature:
    • Why: Extreme temperatures can affect filament properties, leading to brittleness or deformation.
    • How to Fix:
      • Store filament in a cool, dry place away from direct sunlight and heat sources.
      • Ideal storage temperature is typically between 15°C and 25°C (59°F to 77°F).
  3. Avoid Direct Sunlight:
    • Why: UV light can degrade some filament types, especially PLA and PETG, causing them to become brittle.
    • How to Fix:
      • Store filament spools in opaque containers or boxes to block UV light.
      • If using clear containers, ensure they are UV-resistant.

Storing Resin for 3D Printing

  1. Keep Resin Sealed:
    • Why: Exposure to air can cause resin to cure and harden in the bottle.
    • How to Fix:
      • Always keep resin bottles tightly sealed when not in use.
      • Store resin in its original container or a UV-blocking container.
  2. Store in a Cool, Dark Place:
    • Why: Heat and light can degrade resin quality and shorten its shelf life.
    • How to Fix:
      • Store resin in a cool, dark environment, ideally below 25°C (77°F).
      • Avoid storing resin near heat sources or in direct sunlight.
  3. Check Expiration Dates:
    • Why: Resin has a limited shelf life, and using expired resin can lead to print failures.
    • How to Fix:
      • Regularly check the expiration date on resin bottles and use older resin first.
      • Dispose of expired resin according to local regulations.

Troubleshooting Common Storage Issues

  1. Filament Absorbing Moisture:
    • Problem: Filament prints with bubbles or pops, indicating moisture absorption.
    • Solution:
      • Dry the filament using a filament dryer or an oven at low temperatures (around 50°C or 122°F) for a few hours.
      • Store the filament in airtight containers with desiccants after drying.
  2. Brittle Filament:
    • Problem: Filament breaks easily during printing.
    • Solution:
      • Check the storage conditions. Ensure filament is stored at stable temperatures and away from sunlight.
      • If the filament is brittle, it may need to be replaced.
  3. Cured Resin in the Bottle:
    • Problem: Resin has cured inside the bottle due to exposure to light.
    • Solution:
      • Dispose of the cured resin according to local hazardous waste regulations.
      • Ensure all resin containers are stored in dark, UV-blocking environments.
  4. Expired Resin:
    • Problem: Prints fail or have poor quality due to using old resin.
    • Solution:
      • Regularly check expiration dates and use resin before it expires.
      • Dispose of expired resin properly.

By following these best practices for storing resin and filament and addressing common issues, you can maintain the quality of your materials and achieve successful 3D prints.