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The SPRINT MTM Toolkit offers exceptionally repeatable diameter
measurement to producers of Y-axis multi-task machine tools for use
in the manufacture of highly accurate diameters.
Integration of this toolkit delivers a number of game-changing
capability enhancements most notably a highly repeatable diameter
measurement cycle. With the required artefact, this unique cycle
(patents applied for) is not affected by thermal changes to the
machine structure or the on-centre error of the component. It
provides users with the potential for extremely accurate automatic
cut-measure-cut operations with tolerances of a few microns.
The Toolkit returns results for diameter, part run-out, machine
centre-line and circularity, with measurements typically repeatable
to within 1 to 2 µm.
The SPRINT MTM Toolkit comprises a series of software cycles, which
are executed using the Productivity+™ CNC plug-in software, and
engineering support provided by Renishaw to the machine tool
builder allowing integration of the cycles and artefacts into
The supplied cycles, which are programmable through the CNC macro,
control the OSP60 SPRINT probe during the required diameter
measurements on a reference artefact and the workpiece.
These automatically compensate workpiece measurements by using the
reference artefact measurements, thus minimising thermal effects on
the CNC machine tool. The measurement results are stored to macro
variables on the CNC machine tool control.
These cycles use the outstanding 3D scanning capability of the
SPRINT system to collect measurement data from every part of the
component surface, whilst rotating the part and interpolating the
machine axes simultaneously, thereby reducing measurement variation
from component form and machine positioning.