A spindle for an electrostatic painting machine has a main spindle and a rotor coupled to the rear end of the main spindle. Only the targeted circuit element is electrically biased so that deposition occurs on the surface of that element, underneath the microdroplet, and nowhere else unless it is under other microdroplet. At the initial stage of film formation, the nitrogen gas 11 is supplied in excess to suppress the occurrence of an amorphous phase on the interface. After the indicator has been actuated, a termiticide is introduced into the paving hole, the termite lure, andor the adjacent ground to expose termites to the termiticide as the termites pass between a termite colony and the paving hole or termite lure andor feed within the paving hole or termite lure. Tension provided by the lateral forces can help the belt move smoothly and with less wear than the support provided by existing support idlers. Lights, wiring, batteries, andor a solar panel may be integrated into the sign system.