Why Scan. Why REVO.

Scanning: There are very few situations where your metrology application will not benefit from scanning. Tactile scanning gives you more data, in most cases is much

faster. Scanning helps to decrease measuring time, which increases throughput time. The typical cycle time improvements are based upon the fact that the CMM in traditional scanning scenarios can scan at a maximum speed of 20 mm/sec. What about the measuring force exerted on your part during scanning? The RSP2 REVO probes work on a target deflection range of 50 – 200 microns. The actual force on the component is dependent on the particular stylus holder being used because they have different stiffness. It should be in the range of 0.05 N and 0.25 N (5 gf – 25 gf).

Speed: REVO supercharges the benefits of scanning by allowing a maximum scanning speed of 500 mm/sec. Another advantage inherent in speeding up the measuring process is the infinite articulation of the REVO. Besides a straight out speed advantage there are two additional reasons that improve total system throughput.

#1 Scanning with an infinitely articulating head. Why is infinite articulation important? It allows the programmer to align the probe with the feature to be measured. This means in many cases when you go to take measurements in a bore or hole, you have less chance of shanking, because the angle that the shaft of the stylus is aligned with the angle of the feature to be measured
. This improves programming and speed of programming. It also means that you do not have to time consuming probe changes to pick up various probe configurations to measure a variety of features.

#2 Calibration. Imagine your part has several hundred features to measure. With articulation, you will be able to use less probe configurations than a fixed scanning head. You do not need to account for the additional cost and time attributed to probe racks three levels high, filled with 5 probe pockets with custom probe configurations with multiple probe tips, to measure your part. Sometimes the amount of calibration in such a scenario adds up to hours of calibration time. The REVO has a unique calibration

technique, which allows measurements in any position from a single operation. This technique determines the actual head and probe geometry.

Data: Additionally, when speaking of data acquisition, the REVO can collect data up to 4000 points a sec. With a tactile touch probe, when measuring a circle, you would typically take four points to find the diameter of the circle. In the same time, with scanning you could have taken thousands of points which will give you a much more accurate diameter, as well as some form data on what the circle actually looks like. There are a variety of measurement techniques that can be utilized to capture this data.