A packaged engine working machine is provided. In a case where a foreign substance removal operation, which removes a foreign substance affixed to an optical member, has been executed, the correction data is updated, so that correction of subsequent photographed image data using old correction data is prevented. Additionally provided are a method for compacting an element from metal powder and an element made from such a method. The system further facilitates data modelling. An aperture is located in the first cover proximate the photosensor.