What to Look for When Selecting a Coordinate Measuring Machine is a Topic Covered in This Buyer's Guide to CMMs

In order to conduct accurate dimensional inspections of manufactured parts, coordinate measuring machines, also known as CMMs, are utilized

In order to conduct accurate dimensional inspections of manufactured parts, coordinate measuring machines, also known as CMMs, are utilized. In a wide variety of different types of businesses, the use of these kinds of machines is an essential component of the production process. Because of the rapid pace at which CMM technology has advanced, manufacturers now expect CMMs to be highly accurate, dependable, and quick. In addition to this, they have to be cost-effective and versatile in order to function in industrial settings. Even though it is a lot to ask, market-leading CMM manufacturers come through with the goods. CMM manufacturers must construct the CMMs of today and tomorrow, and in order to do so, they must make thoughtful decisions regarding the design of the CMMs, select innovative materials, and make every effort to employ new construction techniques.

CMMs are offered in a wide range of performance levels to meet a variety of needs. Because there is such a wide variety of choices, CMM Inspection Companies selecting the appropriate CMM that satisfies the requirements of both the measurement and the application can quickly become a task that is insurmountable. You will be able to determine which CMM will fulfill the requirements of your company and provide the best possible performance with the assistance of this detailed guide. When looking for a CMM, the following five criteria should be taken into consideration.

To begin, take into consideration the Scale. Before taking any other considerations into account, the first criterion to identify is the specific size that you will require for your CMM. This should be done before any other considerations are made. When selecting the appropriate CMM size to purchase, it is important to take into account not only the part sizes and the number of parts that are being measured, but also the manufacturing footprint and the room limitations. Consider where your coordinate measuring machine (CMM) will be located, cmm services how much room will be available there, the size of the largest part you will be measuring, and whether or not you will be measuring groups of parts at the same time. Investigating whether or not the size of your part will grow over the next five to ten years is another worthwhile exercise. It will be easier for you to compare different options if you create a cheat sheet that details the measurement volumes and overall system dimensions of a variety of CMMs.

2. Be Precise About Measurement RequirementsIf you need highly accurate measurements, one of the most important things you can do is choose a CMM that satisfies your needs by applying either a 4 to 1 or 10 to 1 rule. In the manufacturing industry, it is standard practice to choose a measurement device that is four to ten times more precise than the most difficult part tolerance. There are other considerations to take into account, such as the type of geometric features, the manufacturing process that creates the feature, the design phase, and so on. A qualified application engineer can assist you in refining your choice of these and other considerations.


The following are some of the components of the CMM that should be considered: Machine structure: CMM structures can have an effect on the precision of the CMM; typically, structures with a higher stiffness give better performance. CMM structures include moving bridges, fixed bridges, gantries, and cantilevers. Compared to an indexing probe head, a fixed probe head: The precision of a probe with a fixed head is typically higher; however, CMM Inspection Companies the indexing wrist and probe combinations available today frequently provide acceptable precision while also adding flexibility. Comparing scanning to probing with a touch-trigger: Scanning probes are capable of rapidly collecting large amounts of data. The uncertainty of measurements can be reduced and the repeatability of the measuring process can be improved when there are more data available.

Are You Measuring Components That Contain Several Different Material Types Or Feature Characteristics? When dealing with components that have multiple feature characteristics, it is essential to have a solution that covers all of your bases and is able to conform to the particular feature cmm inspection services that you have specified. When looking for a CMM, it is important to find a system that can switch between tactile and non-contact probing so that it can accommodate a diverse collection of features and types of materials. It is possible to reduce the amount of time spent between inspections of a part's various feature types by using a probe or style rack to increase measurement throughput. The CMM probe heads or HP-TM touch-trigger probes that are used with Hexagon probe changer racks are capable of performing quick and repeatable exchanges of probes, extensions, and probe modules.

Remember to take into account the surrounding natural landscape. Will you be putting your CMM on the floor where production takes place? Dust, dirt, and oils can all have an effect on the results of measurements taken in these kinds of environments. If you need to position a CMM on the shop floor, it is recommended that you go with a system that is more rugged and has a high level of dependability.

Conduct an Analysis of the Functioning of the MachineThe overall performance of the CMM measurement system is essential to the productivity of manufacturing. When it comes to CMM performance, there is no "one size fits all" solution. To accurately evaluate performance, you need to combine different technologies in a way that is tailored to the cmm inspection services of your particular application. The most successful outcome can be ensured by carefully selecting the appropriate measurement capacity, system throughput, precision, and sensor combination. 

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