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Mechanical Safety

While not as immediately lethal as high-voltage electricity, the printer's powerful stepper motors and fast-moving gantry can cause serious injuries if not treated with respect.

Pinch Points

The primary mechanical hazards are pinch points, where a moving part meets a stationary part. * Belts and Pulleys: Belts moving at high speed can easily catch and pinch fingers or loose clothing. * Gantry Movement: The toolhead moves rapidly along the X and Y axes, and the entire gantry moves up and down the Z-axis.

Diagram of printer pinch points Diagram of printer pinch points

An illustration of the printer with key mechanical hazard areas highlighted, including the belts/pulleys and the paths of the moving gantry.

Safe Operating Practices

  • Keep Hands Clear: Never put your hands inside the build volume while the printer is in operation. If you need to remove a piece of debris, pause the print first.
  • Secure Loose Items: Tie back long hair and avoid wearing loose clothing, ties, or jewelry that could get caught in the machinery.
  • Stable Surface: Ensure the printer is placed on a sturdy, stable, and level surface where it cannot vibrate or be knocked over.
  • Eye Protection: It is good practice to wear safety glasses when working on your printer, especially when cutting filament, trimming supports, or using tools near the electronics.