CNC Machine Operations - NIMS Test Preparation

I.     Course Prefix/Number: MFG 141

       Course Name: CNC Machine Operations - NIMS Test Preparation

       Credits: 4 (2 lecture; 4 lab)

II.    Prerequisite

Computer competency and familiarity with web-based instruction.

III.   Course (Catalog) Description

Course provides instructional and hands on training to prepare students to take the NIMS (National Institute for Metalworking Skills) “CNC Operator” certification test. This is a web-based training class which contains 24 self paced learning units as well as a lab component for hands on experience. Topics covered are: computer numerical control (CNC) mill, lathe and grinder set-up and operation, tool identification, set-up and maintenance, fixture set-up and operation, CNC troubleshooting and maintenance, precision measurement and gauging, print reading, geometric dimensioning and tolerance, machining processes, statistical process control, quality and cycle time optimization, and CNC program operation.

IV.   Learning Objectives

In preparation for the NIMS CNC operator certification test the student will receive the following skill sets:
  • Basic CNC mill, lathe and grinder set-up and operation with hands on experience.
  • Tool identification, set-up, use and maintenance.
  • Fixture set-up and operation.
  • Operator level CNC troubleshooting and maintenance.
  • Precision measurement and gauging skills for part quality verification.
  • Print reading and geometric dimensioning and tolerancing skills.
  • Statistical process control, quality and cycle time optimization.
  • CNC program operation with hands on experience.

V.    Academic Integrity and Student Conduct

Students and employees at Oakton Community College are required to demonstrate academic integrity and follow Oakton's Code of Academic Conduct. This code prohibits:

• cheating,
• plagiarism (turning in work not written by you, or lacking proper citation),
• falsification and fabrication (lying or distorting the truth),
• helping others to cheat,
• unauthorized changes on official documents,
• pretending to be someone else or having someone else pretend to be you,
• making or accepting bribes, special favors, or threats, and
• any other behavior that violates academic integrity.

There are serious consequences to violations of the academic integrity policy. Oakton's policies and procedures provide students a fair hearing if a complaint is made against you. If you are found to have violated the policy, the minimum penalty is failure on the assignment and, a disciplinary record will be established and kept on file in the office of the Vice President for Student Affairs for a period of 3 years.

Please review the Code of Academic Conduct and the Code of Student Conduct, both located online at

VI.   Sequence of Topics

Class time spent learning terminology, safety, various applications
  • Basic Measurements
  • Print reading (multiview drawings)
  • Print reading (sectional drawings and fasteners)
  • Precision measurement tools
  • Dimensional gauging
  • Introduction to geometric dimensioning and tolerance (GD&T)
  • Orientation tolerances
  • Form tolerances
  • Location tolerances
  • Machining processes
  • Drill operation
  • Internal machining processes
  • Milling machine operation
  • Milling production
  • Lathe operation
  • Turning production
  • Introduction to CNC machining
  • CNC mill operation
  • CNC program operation
  • CNC turning operation
  • CNC grinding operation
  • CNC machine troubleshooting and maintenance
  • Introduction to statistical process control (SPC)
  • Control charts

VII.  Methods of Instruction

Lecture demonstration of drawing techniques with a hands on focus emphasizing the solution of drawing problems.
Course may be taught as face-to-face, hybrid or online course.

VIII. Course Practices Required

Course may be taught as face-to-face, media-based, hybrid or online course.

IX.   Instructional Materials

Note: Current textbook information for each course and section is available on Oakton's Schedule of Classes.

Texts: Web based

X.    Methods of Evaluating Student Progress

Drawings will be graded according to standard drawing conventions provide on assignment sheets, notes and handouts. Late submissions will incur a 10% late fee.
A 90% -
B 80%
C 70%
D 60%
F Below 60%
Attendance 10%
Each of the 24 self paced learning modules contains a test that the student must pass in order to move on to the next module. The students’ final grade is determined but the 24 tests taken during the course as well as their performance during the hands-on lab portion of the class.

XI.   Other Course Information

If you have a documented learning, psychological, or physical disability you may be entitled to reasonable academic accommodations or services. To request accommodations or services, contact the Access and Disability Resource Center at the Des Plaines or Skokie campus. All students are expected to fulfill essential course requirements. The College will not waive any essential skill or requirement of a course or degree program.

Oakton Community College is committed to maintaining a campus environment emphasizing the dignity and worth of all members of the community, and complies with all federal and state Title IX requirements.

Resources and support for
  • pregnancy-related and parenting accommodations; and
  • victims of sexual misconduct
can be found at

Resources and support for LGBTQ+ students can be found at

Electronic video and/or audio recording is not permitted during class unless the student obtains written permission from the instructor. In cases where recordings are allowed, such content is restricted to personal use only. Any distribution of such recordings is strictly prohibited. Personal use is defined as use by an individual student for the purpose of studying or completing course assignments.

For students who have been approved for audio and/or video recording of lectures and other classroom activities as a reasonable accommodation by Oakton’s Access Disabilities Resource Center (ADRC), applicable federal law requires instructors to permit those recordings. Such recordings are also limited to personal use. Any distribution of such recordings is strictly prohibited.

Violation of this policy will result in disciplinary action through the Code of Student Conduct.