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| GeoNews - July 2007 |
Edition 2007.6 |
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Unfortunately
most calibration
services only test
and correct for
linear inaccuracies
on your CMM. This
leaves open the
potential for errors
as it is the
relationship between
the X, Y and Z-Axes
that greatly affects
accuracy when
measuring in the 3-D
world.
| General News |
Renishaw RTP-20 Articulating Probe Head  Helmel's
own CMM software, Geomet has been supporting the
low-cost
Renishaw RTP-20 articulating probe head
since it's introduction in the USA. In fact, we were
the first company to demonstrate it at the major
trade shows.The RTP-20 provides the means to reposition the touch probe to any of the 168 repeatable positions in 15° increments in the A and B-Axes. Each position required for the inspection would be qualified against the reference sphere one time and will not be required to have a re-qualification when repositioning the head The key to providing this capability at a economical cost, and without any CMM retrofit cost, is the ability to tap the CMMs drive system to provide the articulation of the probe head. Through a simple user interface inside Geomet, the probe head is first tested against its rotation pole to provide position information to Geomet. This is done one-time and it is then ready for use. To articulate the probe head to a position required for inspection, use the Geomet Stylus Manager to perform a qualification. The Stylus Manager will prompt you for the A/B angle values you want to articulate too. Geomet will then automatically drive to the pole and provide the necessary motion to position the probe head to the requested A/B angles. It is now ready for inspection.  The
RTP-20 utilizes the full rage of Renishaw TP20
modules including extensions. This not only provides
a wider range of measurement capability, but
includes safety when encountering collisions when
moving in the X, Y and limited Z travel. The TP20 is
magnetically attached to the probe head and simple
separates when a collision occurs. Increased
reach and flexibility is achieved when you combine
the MCR20 module rack. The MCR20 rack comes in 2, 4
and 6 bay configurations. The RTP-20 is fitted with
a built-in extended collar that is designed to work
specifically with the MCR20 module change rack.Geomet, through the Stylus Manager, provides a simple user interface to setup and use the MCR20 module change rack. During the qualification process you are prompted for the bay assignment. There is no need to program moves for the change to take place, Geomet provides it all. For more information and costs, please contact our Sales Department at sales@helmel.com. Art Whistler - Vice President Sales - email: Art@helmel.com Keep your CMM Software Current |
CMM Software is changing daily. New features and updates are constantly being published. Keep your software current with the latest changes by visiting our Geomet web site download page at: http://www.geomet-cmm-software.com/download.htm. For those customers that maintain a Software Service Contract (SSC), they receive an automatic upgrade every six month, June and December. Minor changes are posted on the web site and can be downloaded and installed on demand. That is a benefit of maintaining your SSC. To obtain additional information on SSC programs, please contact our sales department at (716) 297-8644 or request information here.
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