A method and device for trimming around stationary objects is disclosed as arotarymowing attachment with a cutting head assembly slidably coupled to a carrierassembly that ispositioned by a slope control circuit and controller. The cutting headassembly has at least twocounter-rotating blades, at least one rotator motor configured to rotate thecutting head assemblyabout a cutting head central axis, at least one blade drive motor configuredto drive the at leasttwo counter-rotating blades, and at least one lateral motion drive motorconfigured to move thecutting head assembly position relative to the carrier assembly.
