Under general supervision, performs complex work which involves
building, modifying, and fabricating parts for working research
apparatus. In consultation with shop supervisor, higher level
research machinist, or research personnel and technical references,
conceptualizes and constructs complex devices. Functions as a lead
worker or resource person.
1. Operates conventional machine shop equipment, including precision
tools, instruments for micro-measurement, and non-traditional
machining equipment to produce apparatus parts to the required
level of accuracy.
2. Produces necessary jigs and fixtures for completion of work.
Prepares own sketches as required.
3. Makes precise dimensional measurements of parts and their
relationships in an assembly in order to achieve proper function.
Suggests and makes alterations in design, subject to necessary
4. Performs precision hand operations at the workbench to achieve
proper fit and finish of parts.
5. Assembles complete devices or sub-assemblies and inspects for
proper function of mechanisms per project requirements.
6. Specifies and requisitions commercial hardware required for
assembly of mechanisms, subject to supervisory approval.
7. Disassembles, cleans, lubricates, adjusts and re-assembles
mechanical and electro-mechanical instruments.
8. Performs routine chemical finishing operations on parts.
9. Calculates basic clearances, positions, and fits on parts
10. Marks up drawings to reflect as built condition as changes are
made to jobs in progress.
Note: The intent of this list of primary duties is to provide a
representative summary of the major duties and responsibilities of
this job. Incumbents perform other related duties assigned. Specific
duties and responsibilities may vary based upon departmental needs.
EDUCATION: Graduation from an accredited trade or technical school in
a related field.
EXPERIENCE: Seven years machine shop experience to include three years
as a research machinist.
Thorough knowledge of and skill in applying standard machine shop
practices including safe operation of required tools and equipment.
Thorough knowledge of the standard system of measurement employed in
area where assigned; of conventional materials used, their properties
and limitations, and the methods of working with them; of
manufacturing processes such as production welding, casting, forging,
spinning, molding, or drawing and their relative merits; of applied
arithmetic, geometry, and trigonometry as it applies to machine shop
practice. Working knowledge of the essentials of engineering
metrology; of metric standards of notations and the means of
converting them; of general practices of engineering documentation
such as assembly drawing hierarchies, parts list formats, advanced
methods of tolerancing, and references to engineering standards. Skill
welding and brazing applications, heat treating and tool design,
elementary mechanical design, and non-traditional machining methods;
in working with conventional engineering materials at close
tolerances. Ability to work with exotic materials to close tolerances;
to read and interpret complex engineering drawings, technical
specifications, and manufacturing procedures; to communicate
effectively both orally and in writing; to maintain effective working
relationships; to handle multiple projects and priorities; to provide
guidance, instruction, and technical supervision to assigned
personnel; to wear and work in personal protective equipment.
OTHER: Except for qualifications established by law, additional
related experience and formal education in which one has gained the
knowledge, skills, and abilities required for full performance of the
work of the job class may be substituted for the education or
experience requirement on a year-for-year basis with 30 college
credits being equivalent to one year of experience.
CONDITIONS OF EMPLOYMENT