Renishaw SP25M Bedienungsanleitung Seite 38

SP25M user's guide
http://www.renishaw.com
Establishing a docking position for SH25 stylus holders
This section describes how to establish the docking position for the SH25 stylus holder. The docking position is defined by taking a series
of measurements using the stylus holder setting piece (SHSP). The SHSP is a dummy stylus holder with a short cylindrical stem of a
qualified length and diameter. This provides known constant values to accurately calculate the port docking position.
Eye protection should be work during this procedure and a good level of lighting is recommended to ensure no collisions occur.
It is necessary to turn off tip radius compensation when taking points using the SHSP because it is not calibrated. However, a suitable tip
qualification (calibration) should be applied as detailed below.
Before taking points using the SHSP, a probe tip qualification should be applied that has previously been defined for a suitable
configuration of SM25 scanning modules, SH25 stylus holder and stylus length. This configuration should be the shortest length possible, for
example SM25-1, SH25-1 and a 21 mm stylus. In instances where SM25-3, SH25-3 and a 21 mm stylus is the only configuration available,
it is recommended that the approach speed when taking points is restricted to 3 mm/s or less.
If using a threshold deflection method to measure points, the threshold deflection should be set to 0.050 mm.
CAUTION: Failure to follow the above recommendations could lead to severe damage of the SM25 scanning module when taking
points with the SHSP.
1. Latch the port lids open using the triangular plastic inserts provided
2. The desired port should be fitted with a PA25-SH port adapter insert. Orientate the PA25-SH as shown in the image below. Slide the port
adapter into the port ensuring that the side lugs of the adapter locate in the slots at either side of the port. Push the PA25-SH port adapter in
to the port until it clips securely in to the port. Check that the adapter is fitted correctly and that there is no misalignment.
Steps 1 and 2 - latching port lids open and placing PA25-SH into desired port(n)
Issued 10 2015
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