Abstract: A table saw includes a safety system to protect a user from injury. The safety system detects a sensed condition and rapidly moves a saw blade away from the user. The safety system includes a dual ratchet mechanism to prevent the blade from rebounding back above a work surface after an initial rapid retraction of the blade. The table saw has a swing arm that rotates to move the blade below the work surface. A first ratchet engages a first contact surface of the swing arm after rotation of the swing arm over a first range of angular displacements to prevent counter rotation of the swing arm. A second ratchet engages a second contact surface of the swing arm after rotation of the swing arm over a second range of angular displacements to prevent counter rotation of the swing arm.

Abstract: A table saw includes a safety system to protect a user from injury. The safety system detects a sensed condition and rapidly moves a saw blade away from the user. The safety system includes a dual ratchet mechanism to prevent the blade from rebounding back above a work surface after an initial rapid retraction of the blade. The table saw has a swing arm that rotates to move the blade below the work surface. A first ratchet engages a first contact surface of the swing arm after rotation of the swing arm over a first range of angular displacements to prevent counter rotation of the swing arm. A second ratchet engages a second contact surface of the swing arm after rotation of the swing arm over a second range of angular displacements to prevent counter rotation of the swing arm.

Abstract: A saw system in one embodiment includes a base including a rail system, a table positionable on the rail system and including a work piece support surface defining a support plane, and a roller system attached to the table and configured to engage the rail system when the table is positioned on the rail system, the roller system including a helical actuator assembly configured such that rotational movement of an actuator rod from a first position to a second position causes at least one roller to move along a locking axis between a third position whereat the at least one roller is not engaged with the rail system and a fourth position whereat the at least one roller is engaged with the rail system, wherein the locking axis is substantially parallel to the support plane when the table is positioned on the rail system.