Implement these standardized procedural controls to manage operational risks, protect indoor air quality, and minimize fire hazards during 3D printing.
Emission and Material Management
- Temperature Control: Select the lowest feasible print temperature recommended by the manufacturer. This minimizes potential Volatile Organic Compound (VOC) and Ultra Fine Particle (UFP) emissions.
- Manufacturer Compliance: Use only filament types and brands specifically recommended by the printer manufacturer.
- Safety Data Sheets (SDS): Review the SDS for all print materials, resins, and wash solutions to understand specific hazards.
Fire Prevention and Workspace Safety
- Hygiene: Clean build plates and print heads regularly to reduce fire risk.
- Surroundings: Keep the surrounding area clear of combustibles like paper, paint, and extra filaments.
- Equipment Placement: Always place the printing unit on a fire-safe, stable surface.
- Emergency Equipment: Ensure an appropriate fire extinguisher is available nearby. If corrosive wash solutions are used, an eyewash and safety shower must be easily accessible.
Printer Operation and Firmware
- Thermal Runaway Protection: Ensure the printer’s firmware includes thermal runaway protection to automatically cut power to heaters if the temperature controller fails.
- Enclosure Clearance: Maintain an enclosure “clearance time” of about 20 minutes after printing is complete before opening the enclosure.
- Smart Automation: Consider using a smart plug or automated safety shutoffs to instantly disable power, especially when using remote monitoring cameras to detect failures.
- First Layer Check: For long print runs (over 8 hours), observe the first 2–3 layers to ensure successful printing, as most failures (such as bed detachment) occur early.
- Firmware Controls: Equipment should integrate automated safety controls like thermal runaway protection to cut power automatically if sensors fail.
