IT 250 - Coordinate Measuring Machine

• identify quadrants and be able to make measurements and calculations relative to the Cartesian coordinate system;
• plot various X&Y coordinates on graph paper;
• using the CMM and a sample part, demonstrate the ability to:
  • translate the part coordinate system in the X,Y&Z axis;
  • rotate the part coordinate system in the X,Y&Z axis; and
  • store and recall the part coordinate system.
• explain and define machine coordinates and part coordinates;
• identify measurement planes for various features on a CMM test piece;
• using the CMM and a sample part, demonstrate the ability to:
  • display machine coordinates;
  • recall precious measured features and establish a part coordinate system; and
  • recognize an incomplete coordinate system.
• define various geometric features;
• using the CMM and a sample part, demonstrate ability to measure each of the geometric features;
• explain how geometric dimensioning and tolerancing is a dimensioning system which thoroughly defines a part;
• list advantages of geometric dimensioning and tolerancing;
• demonstrate how datums are established using a CMM;
• demonstrate proper technique for hard probe calibration;
• demonstrate proper technique for touch probe calibration;
• explain the differences between mechanical and air bearing systems and the function of both;
• identify at least four materials utilized in the construction of CMM’s;
• use proper cleaning techniques and solvents for various parts of a CMM; and
• properly and safely use a CMM to accurately measure part features to print specifications.