| 摘要 |
In some examples, an apparatus includes a base including an arm selectively movable with respect to the base. The arm is selectively rotatable about a first arm axis. A base plate is engaged with the arm. A tool is configured to be detachably coupled to the base plate. The tool is movable with the base plate when coupled to the base plate. The apparatus includes a first mode with the tool coupled to the base plate and the arm being selectively rotatable about the first arm axis, a second mode with the tool coupled to the base plate and the arm being constrained from rotating about the first arm axis, the arm being substantially stationary with respect to the base; and a third mode with the tool detached from the base plate. |
