What is the difference between CAD and CAM?

CAD and CAM both are important in computer-aided engineering CAE. CAD is an abbreviation for computer-aided design to use of computer technology for design while CAM is an abbreviation for computer-aided manufacturing software used for machining or prototypes and finished parts. 


Main difference :

The main difference between CAD and CAM is that CAM software is used by engineers while CAM is used by trained machinist are highly skilled and are equivalent to a computer engineer. They both are heavily dependent upon each other.  

Difference between CAD and CAM : 


  • CAD make 2D technical drawings and 3D models while CAM using 3D models to design the machining process. 

CAD responsibility : 

2D and 3D design, Drafting, Detailing, All type of sheet metal and surface design.

CAM responsibility : 

Manufacturing process after a design by using G code and M code, drilling, tapping, cutting, boring, milling, turning, and multiple operation processes perform on CAM software.

  • CAD is much easier more accurate and fast drafting for 2D drawing but for 3D models impossible without computers whereas CAM is automization of the machining process. 
  • Require expensive software and knowledge on how to use it in both CAD and CAM. Software used by CAD and CAM is following. 

Software used by CAD : 

Autodesk AutoCAD, Autodesk Inventor, Autodesk Fusion, SolidWorks, SolidEdge, CATIA, Creo, NX CAD

Software used by CAM : 

EdgeCAM, NX CAM, Master CAM, CAMWorks

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