"Clone itself" as long as you get gearboxes, actuators, bearings, bolts, and any other part already made by other machines. "Assemble a copy of itself from parts" would be more accurate, but of course less attention grabbing.
Also, if it works the way they say it does, where it is constantly comparing what it measures against its internal model and adjusting the model (similar to how our own arms and brain works), again, precision (in the geometry of the parts) isn't so necessary.