#True position to one datum portable#
#True position to one datum software#

The diameter’s uncertainty combined with the lack of data on cylindricity often means expensive go/no-go gauges must be used as well.) (Little can be said of the actual cylindricity of the hole, however. To do this properly, several different measurements should be taken in order to verify the diameter and, at least in a qualitative way, the circularity of the hole. At this point, several measurements must be made, perhaps with a pair of calipers.įirst, the diameter of the hole must be determined. In order to determine the true position of this hole, the block must be fixed in place. 1Ĭonsider the following situation (shown in Figure 1), which is one of the simplest examples using the open setup method. This process involves the use of calipers, height gauges, micrometers, and other hand tools used in conjunction with an inspection plate to take measurements and compare the feature’s position to datums.įollowing the appropriate measurements, the true position diametrical deviation, D, must then be calculated via the following mathematical formula (Equation 1): D = 21/2 where Δx = the deviation from the true position along the X-axis and Δy = the deviation from the true position along the y-axis. Traditionally, to find the deviation from true position (sometimes simply called the position) of a feature, the “open setup” is used.

#True position to one datum software#

Software is then able to determine the position of the bore and its deviation from the called out position.

#True position to one datum portable#

Portable CMM technology can alleviate much of this work by allowing the user to fix the part in one spot, take several points to create an alignment of X- and Y-axes, and measure the bore. Likewise, measurement of the final parts must be done easily and with confidence in order to verify the in-process or final products.įor example, inspection of a bore in an open setup often requires multiple measurement steps and mathematical calculations. In order to produce interchangeable parts in a manufacturing environment, care must be taken that the design is sound enough to allow mating parts to work correctly.įurthermore, the industrial process must be robust enough to produce parts called out in design in an efficient and predictable manner. Manufacturers today realize that feature location in part design and production is crucial.

Lubricants, Coolants, Metalworking Fluids.

Computerized Maintenance Management Systems.Abrasives, Belts, Brushes, Grinding Wheels.