Introduction to computer numerical control

Unit: 1-2 Safety and Orientation Content Standard(s) and Depth of Knowledge Level(s): Students will: 1. Apply safety rules, regulations, and procedures when using CNC equipment. 2. Demonstrate care and maintenance for CNC machines. Learning Objective(s) and Depth of Knowledge Level(s): Students will: 1. Explain the role that safety plays in the classroom/lab (machine shop). 2. Explain the appropriate safety precautions applicable to common Manufacturing facilities. 3. Demonstrate the use and care of appropriate personal protective equipment (PPE). 4. Properly don and remove personal protective equipment (safety goggles, hearing protection, and hard hat). 5. Explain the importance of Hazard Communications (HazCom) and material safety data sheets (MSDS). 6. Describe fire prevention and firefighting techniques. 7. Demonstrate correct selection and use of hand tools. 8. Maintain CNC machine to keep it running at optimum performance. Walking – working surfaces Exit routes Fire prevention plans Emergency action plans Hazardous materials Personal protective equipment General environmental controls Fire protection Materials handling and storage Laboratory demonstrations and experiments Guided practice Group investigation Listen, think, pair, share Demonstrations Discussion Individual and group practice Problem solving exercises Math application exercises Math application worksheets Laboratory shop equipment Student work sheets Tools and supplies adequate for class PowerPoint presentations Handouts Textbooks, online and print Online resources Online technical reference Computers, laptop and desktop LCD projector Preventative Maintenance Unit: 3-5 Operations Content Standard(s) and Depth of Knowledge Level(s): Students will: 3. Identify basic G and M codes, speed and feed codes, and cutter positioning. 4. Demonstrate skills for writing a basic CNC mill program for straight and circular moves. 5. Demonstrate skills for writing a basic CNC lathe program for turning, facing, and corner radii. Learning Objective(s) and Depth of Knowledge Level(s): Students will: 1. Create basic CNC milling programs utilizing cutter compensation for positioning. 2. Create basic CNC lathe program utilizing tool nose compensation for positions. 3. Create CNC milling and lathe programs using canned cycles.