Abstract: A powered fastener driver including a housing, a cylinder, a piston movable within the cylinder from a TDC position to a BDC position, a driver blade attached to the piston for movement therewith along a driving axis from the TDC position toward the BDC position for driving a fastener into a workpiece, a lifter operable to move the piston and driver blade, in unison, from the BDC position toward the TDC position, a drive unit operably coupled to the lifter, and a printed circuit board (PCB) positioned within the housing. The PCB receives electrical current from the battery pack and includes power switches for commutating the motor. The PCB defines a length and a width, and a vibration attenuating damper is positioned between the housing and the printed circuit board. The damper is positioned along the length of the PCB and is configured to support the PCB within the housing.

Abstract: A powered fastener driver includes a housing, a cylinder within the housing, the cylinder containing a pressurized gas, a piston within the cylinder and movable from a top-dead-center position to a bottom-dead-center position, a driver blade movably coupled to the piston, a lifter, a drive unit configured to provide torque to the lifter, and a sensor. The driver blade has a plurality of teeth defining a predetermined number of edges. The sensor is configured to detect an edge of one or more of the plurality of teeth and a controller in communication with the drive unit and the sensor. The controller is configured to count a number of edges detected by the sensor, compare the number of detected edges to the predetermined number of edges, and stop the drive unit when the number of detected edges is less than the predetermined number of edges.