Getting Started with 3D Printing, 2nd Edition

FIGURE 95: Some 3D printers have easily accessible heating elements. Avoid touching the extruder assembly when the 3D printer is in

operation. (We turned it off to take this picture!)

There are other components you need to watch. Many 3D printers have belts and rods that move, which can

present pinch hazards. Exercise caution and make sure to keep fingers, hair, and clothing away from the

moving parts when they are in operation (Figure 9-6).

Many 3D printer kits have exposed electrical wires and non-enclosed electrical components. 3D print-

ers also run on electrical power from a wall outlet, so normal wall-voltage electrical appliance caution ...