Coordinate measuring machines (CMM) compute overall dimensions of an industrial component. A coordinate measuring machine consists of four main components: the machine itself, the CMM probes, the control or computing system and the measuring software. These machines are available in a wide range of sizes and designs with a variety of different probe technologies.

Important specifications to know for a coordinate measuring machine are:

1. The measuring lengths along the x, y and z axes
2. The measuring capacity
3. Resolution of the coordinate measuring machine
4. Weight of the component for which dimensions are measured

Action Steps
The best contacts and resources to help you get it done

Understand various parameters related to coordinate measuring machines

To select a CMM, you need to know its different parameters such as its design, accuracy, sensors, controls and software. There are various institutes which provide this information.

I recommend: Hexagon Metrology offers detailed information about selecting coordinate machines. International Association of Coordinate Measuring Machine Manufacturers (IACMM) offers guidelines for selection of CMM machines. You can also learn more about CMMs from online engineering information providers like GlobalSpec.

Explore various coordinate measuring machines available with leading manufacturers

Once you understand various requirements for a CMM and select the right machine configuration, look for standard coordinate measuring machines for sale with reputable companies in your region.

I recommend: FARO Technologies offers a wide variety of CMMs, related accessories and services. You can contact Werth Inc. for an optical CMM. Mitutoyo is another manufacturer that offers various types of measuring machines including CMMs.

Purchase used CMMs for cost effective solutions

As CMMs are an expensive investment, you can also look for used CMMs that are available for online sale. You can get a CMM in good condition at an attractive price that includes a warranty.

I recommend: At UsedCMM, you can buy used CMMs fully refurbished and with a 1-year warranty. Xspect Solutions offers used CMMs from leading manufacturers with a 90-day warranty.

Contact a CMM service provider to upgrade your existing CMM

Many service providers upgrade existing CMMs and install advanced parts to fulfill the changing CMM requirements.

I recommend: You can fill a request form at Helmel that offers Geomet, a CMM retrofit system. American Calibration is another source that provides CMM software retrofit services.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Train your employees to optimize the use of coordinate measuring machines.
• •  Check different features of CMMs such as crash protection systems and programming capability.
• •  Check functionality of accessories like probe changers, rotary tables and swiveling joints.