A haptic throttle control mechanism includes a vibrating element that is connected in vibration transmitting relation with the control mechanism. Prior to depositing, the surface is treated with non-depositing plasma products. The sample volume may be part or all of a subject, such as a human subject. Further, the system can be dynamically reconfigured by adding or deleting new messages andor applications, without affecting the performance of the unchanged parts of the system. By disposing the cutting and breaking tools at the front and periphery of the cutting drum, the loosened soil moves in the direction of the subsequent mixing drum. The sideframe columns may be of a width for single dampers contact; double-damper side-by-side contact; or double-dampers separated by a land contact.