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Coordinate Measuring Machines (CMMs) b Charlie McLean b CEE 398.

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Presentation on theme: "Coordinate Measuring Machines (CMMs) b Charlie McLean b CEE 398."— Presentation transcript:

1 Coordinate Measuring Machines (CMMs) b Charlie McLean b CEE 398

2 Components b The machine itself many typesmany types strong granite basestrong granite base precision engineeringprecision engineering b The measuring probe electronic touchelectronic touch all shapes and sizesall shapes and sizes

3 Components (cont) b The control or computing system operator controledoperator controled computer numerical controlcomputer numerical control PCPC b The measuring software automatic everythingautomatic everything CADCAD 3-D graphics windows3-D graphics windows

4 Types of CMMs b Articulated arm portable or tripod mountedportable or tripod mounted probe can be placed in many different directionsprobe can be placed in many different directions b Bridge horizontally suspendedhorizontally suspended x-axis carries the bridgex-axis carries the bridge

5 Types of CMMs (cont) b Cantilever supports probe from movable vertical supportsupports probe from movable vertical support b Gantry frame structure raised on side supportsframe structure raised on side supports similar to bridge stylesimilar to bridge style

6 Mounting Options b Benchtop b Freestanding b Handheld b Portable

7 Common Applications b Dimensional measurement b Profile measurement b Angularity or orientation b Depth mapping b Digitizing or imaging b Shaft measurement

8 Buying CMMs b X,Y,Z measurement length b Resolution b Workpiece weight b Control b Operation b Mounting Options b Probe/Sensor type b Application features b General applications Specifications

9 Buying CMMs (cont) b Companies L.S. Starret Co.L.S. Starret Co. HelmelHelmel LK Metrology SystemsLK Metrology Systems Mahr Federal Inc.Mahr Federal Inc. Faro Technologies, Inc.Faro Technologies, Inc. Carl Zeiss, Inc.Carl Zeiss, Inc. b Cost Wide range depending on CMM

10 References b b http://process- b b b b

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