MEC 136 - Applied Computer Numerical Control Machining

Credits: 3
3 Skills Lab Hours

Prerequisites: MEC 135 or Instructor Permission
Description
This course builds on the fundamentals of computer numerical control (CNC) machining by advancing into multi-axis operations, computer-aided manufacturing (CAM) software and the production of more complex parts. Students learn advanced programming strategies, optimize cutting parameters and explore topics such as toolpath simulation, surface finish improvement and fixture design. Emphasis is placed on efficiency, accuracy and industry practices for machining parts to tight tolerances. By the end of the course, students are prepared to program, set up and operate CNC machines for intermediate-to-advanced machining applications.

Learning Outcomes
Upon successful completion of the course, the student will:

Compare 3-axis and multi-axis CNC machining operations.
Import computer-aided design (CAD) models into CAM software to generate toolpaths.
Simulate machining operations to identify and correct potential errors.
Optimize cutting parameters to improve machining efficiency and tool life.
Apply advanced G-code and M-code commands for specialized operations.
Design custom fixtures for complex workholding needs.
Operate CNC machines to produce parts with complex geometries and tight tolerances.
Inspect machined parts using advanced metrology tools such as CMMs (Coordinate Measuring Machines).
Apply Statistical Process Control (SPC) methods to evaluate machining consistency.
Document machining processes and outcomes using professional technical reports.

Listed Topics

Review of CNC machining fundamentals from MEC 135
3-axis vs. multi-axis CNC machining concepts
Introduction to CAM software and toolpath generation
Advanced G-code and M-code programming
Toolpath simulation and verification
Cutting parameter optimization (feeds, speeds, depth of cut)
Fixture design and advanced workholding solutions
Production of complex geometries and surface finishes
Precision inspection and metrology (CMM, optical measurement)
Statistical Process Control (SPC) for CNC machining
Efficiency, lean manufacturing and process improvement in CNC operations
Technical documentation and reporting for advanced machining projects

Reference Materials
Instructor-approved textbook and materials

Students who successfully complete this course acquire general knowledge, skills and abilities that align with CCAC’s definition of an educated person. Specifically, this course fulfills these General Education Goals:

Critical Thinking & Problem Solving
Technological Competence

Approved By: Dr. Quintin B. Bullock Date Approved: 03/09/2026

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