| 摘要 |
An apparatus for frame fabrication includes at least one nail gun adapted to fire nails substantially in a selected plane of the frame and a sensor and a corresponding interlock. The sensor is mounted on the at least one nail gun and the sensor and corresponding interlock is adapted to provide a sensor signal, detect the presence or absence of a return sensor signal, and prevent firing of nails from the at least one nail gun in response to the presence or absence of the return sensor signal. |
