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Dec 07, 2025
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CAD 139 - Intro to CAD/CAM Credits: 3 Lecture Hours: 2 Lab Hours: 2 Practicum Hours: 0 Work Experience: 0 Course Type: Voc/Tech The objectives of this course will be to apply computer-aided design software and computer-aided manufacturing software for numerically controlled (CNC) machine tools. Competencies
- Operate a networked PC using a current operation system
- Login to the college network
- Determine how to launch the CAM software
- Maintain files in a tree structure of folders
- Explain the tree structure that the CAM software uses and where different types of files are stored
- Identify the different file extensions that the CAM software uses.
- Explain the software licensing
- Discuss different methods of licensing devices necessary to run the CAM software
- Verify the available licenses on either the network or PC (depending on license type)
- Discuss the different capabilities of each license level available for each machine type
- Maneuver in the CAM desktop
- Determine the proper hotkey to do the following the graphics area:
- Launch the cursor menu
- Explain toolbars status such as docked, floating, visible and hidden
- Manipulate pull-down and cascading menus
- Explain the status bar functions
- Explain the calculator functionality within the software
- Create, change, edit, and delete a tool library
- Modify the speed and feed database.
- Locate and utilize the MRU toolbar
- Determine visual cues for ambiguous geometry
- Manipulate the ribbon bar for input
- Determine different geometry types and importing
- Explain the benefits of a solid model
- Explain the benefits of basic 2-D and 3-D geometry (non-solid model)
- List common translators such as IGES, DXF, STEP, etc with the problems and benefits of each
- Explain gold-level integration of different brands of CAD and/or CAD/CAM software.
- List the geometry and annotation types that have difficult importing because of translation
- Create geometry in a CAM software
- Explain how axes are oriented in Cartesian coordinate system
- Explain the difference between absolute and relative input
- Determine autocursor (object snap) positions
- Create 2-D geometry such as lines, points, arc, splines
- Define geometrical relationship such as collinear, tangent, perpendicular, co-radial, etc.
- Create elliptical shapes
- Utilize the chamfer and fillet functions
- Create polygon shapes
- Create machineable text
- Create geometry using construction geometry methods
- Control the WCS coordinate system and assign work offsets
- Utilize data-entry shortcuts
- Edit geometry in a CAM software
- Delete geometry individually and using massive selection methods
- Change geometry to new locations, levels, colors, etc.
- Perform mirror, rotate, translate functions with the geometry
- Change level (layers) associations of geometry
- Edit line width, style and visibility of geometry
- Select geometry for manipulation using window, chain, area functions
- Select geometry for manipulation using the color, level, geometry mask
- Utilize all the trim and extend functions
- Analyze geometry for size, position, and distance
- Explain the Machine Definitions (MMD) used for CAM
- Determine the physical machine layout for a MMD
- Determine the control definitions role in the MMD concept
- Explain how the toolpath copy of the MMD differs from the diskcopy
- Explain how the post processor interacts with the MMD
- Setup properties for mill toolpathing
- Select a proper MMD
- Setup stock material properties
- Select tool libraries and tool settings
- Interact with the operation manager
- Determine what settings control the output of CNC code with the operation manager
- Determine how to create, delete, and reorder toolpath operations
- Regenerate dirty toolpath operations
- Select individual toolpath operations using various Windows-based functions such as control and the shift keys
- Determine how to lock a toolpath operation
- Change toolpath display visibility
- Expand and collapse operations within the operations manager
- Determine what each of the sub-categories of each operation will do
- Run post-processor to create CNC code
- Toolpathing CAM model.
- Locate tools in the tool library
- Determine motion control of the tool approaching and retract from the work including helical and ramp entry
- Manipulate the tool entry and exit requirement from the workpiece
- Determine when to use multiple levels and/or multiple passes
- Determine the type of toolpath operation needed for the job
- Create chained-paths using various selection tools.
- Control the chained path direction, start, and end
- Configure a contouring operation and utilize its parameters
- Configure a pocketing operation and utilize its parameters
- Configure a facing operation and utilize its parameters
- Configure a drilling operation and utilize its parameters
- Determine the different types of cutter compensation and when to use them
- Adjust the final size of the workpiece using amount of stock functions
- Check toolpath operations for accuracy
- Utilize the verification module for machining animation
- Manipulate settings for verification such as machined color, size, and shape of the workpiece
- Utilize the backplot feature to determine tool movements
- List machining time calculation for each operation
- Generate CNC code
- Identify common G&M codes used by CNC machines
- Locate and save files to alternate network locations
- Open and close CNC editor as required
- Utilize CNC editor to download programs to a CNC machine
Competencies Revised Date: AY2026
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