Under direct supervision prepares drawings, plans, and layouts, with all required details, from data originally prepared by others. Works from oral or written instructions, marked prints, sketches, and standard references, to produce a complete drawing with a minimum of assistance from others. Assists in taking and recording field measurements and data. Performs other duties such as preparation of bills-of-material, compilation of data and filing. Works with others of higher classifications, and may assist and check the work of others in this and lower classification.