The present invention relates to a process for the preparation of pure 2-chloro-5-chloromethylthiazole by distillation with addition of oligomeric polyethers. The system comprises: a printed circuit board ; a first component mounted to the PCB; a cap located about the first component, the cap having an arm extending outwardly from a body of the cap; a second component; and a platform for the second component. For at least one of the plurality of levels, a stack of images is generated, wherein each stack of images includes data representing a plurality of correlated images of increasingly reduced resolution.