MCCCD Program Description

CAD/CAM Computer Numerical Control (CNC) Programming

Course: GTC236

First Term: 2008 Fall

Lec + Lab 3 Credit(s) 6 Period(s) 5.1 Load
Subject Type: Occupational
Load Formula: S

Description: Programming of Computer Numerical Control (CNC) machine tools such as CNC Milling Machines, and Turning Centers. Utilizing Computer Aided Drafting and Computer Aided Manufacturing (CAD/CAM) for design and generation of part geometry. Verification of tool path using CAM graphics. Generate program media using a CAM post processor

MCCCD Official Course Competencies
1. Log onto a computer and access a CAD system. (I) 2. Retrieve drawings from CAD database. (II) 3. Activate CAM system features. (III) 4. Determine a tool cutter path and generate a program with a CAD/CAM system. (IV) 5. Verify program using CAD graphics. (V) 6. Use post processor to link specific operations together. (VI) 7. Set up and execute a program on a three-axis CNC Milling Machine. (VII) 8. Apply CAD/CAM features for industrial applications. (VIII)
MCCCD Official Course Competencies must be coordinated with the content outline so that each major point in the outline serves one or more competencies. MCCCD faculty retains authority in determining the pedagogical approach, methodology, content sequencing, and assessment metrics for student work. Please see individual course syllabi for additional information, including specific course requirements.

MCCCD Official Course Outline
I. Computer Competency A. Log on to a Computer Aided Manufacturing (CAM) system utilizing a graphical interface B. Computer interaction with CNC machines C. Perform basic file generating and management activities II. CAD System Familiarization and Operation A. Produce drawings using CAD B. Manipulate drawing views; mirror, rotate, extend, scale C. Create intermediate file for CAM transmission III. CAM System Familiarization and Operation A. Translate intermediate file from CAD B. Analyze post processors C. Milling machine and turning center applications IV. CAD/CAM Utilization A. Retrieve sample CAD drawings and revise for CAM cutter path B. Evaluate matching time and cutter techniques as applied to an operations V. Cutter Geometry and Tool Path Verification Using CAD Graphics A. Establish tooling, set Tool Length Offset (TLO`s), speeds and feeds B. Parameter setting, cutter compensations, number of cuts, (roughing, finishing) VI. Chaining and Post Processors A. Creating a word address program B. Send program to simulation and evaluate cutter path C. Store files on backup media VII. Observe the Set-Up and Operation of Three Axis (CNC) Milling Machine A. Set up tooling in tool holders B. Set up clamping fixture C. Set all reference points D. Load and test run program VIII. Industrial applications A. 1d and 3d geometry, work holding B. 2,3,4, and 5 axis programming C. Macros and sub routines, (repetitive program) D. Mirror, rotations and planes E. Pockets and projections F. Helical milling G. Tool length offset and tooling application H. Cycle time and data storage

MCCCD Governing Board Approval Date: 6/24/2008

All information published is subject to change without notice. Every effort has been made to ensure the accuracy of information presented, but based on the dynamic nature of the curricular process, course and program information is subject to change in order to reflect the most current information available.