A filling apparatus for a grouting system. A visual representation of the of the plurality of search queries may be generated and the visual representation may be partitioned into a plurality of tiles, each title representing a predefined portion of the visual representation. The lowest center point of the triangle shape allows the handles carried to settle at a central, low point, for a secure and balanced load carrying ability. The first correction unit corrects the image data based on a calculated moir\xe9 component. The base unit receives the feedback as a DERC waveform on a proper feedback channel.