0-9 |
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4-Point Boundary
Scan
The 4-Point Boundary Scan tool is used to
capture data clouds on surface. It utilizes a boundary that is define by
4 end points creating 4 straight sides. It produces a data cloud in a
uniform row and column pattern at a specified grid distance. The tool
will perform a contour walking pattern to follow most shapes. The scan
tool takes advantage of Exclusion Zones,
Clipping Planes and constant Z heights to accommodate most shapes. |
A |
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Archive Tool create a backup copy of the current inspection
ASME
The American Society of Mechanical
Engineers
Three Park Avenue
New York, NY 10016-5990
800-843-2763 (U.S/Canada) |
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The capability of Geomet to determine the direction of the approach to a contact point.
When active, Geomet will determine the feature characteristic such as point direction,
inside or outside diameters,
see Auto Direction. |
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Auto Prompt
Used with probe systems that require operator
intervention. The setting of the Auto Prompt is accomplished on the
System Options→Probe / Sensors
page. An example would be a manual indexing probe that must be
articulated during an inspection run. The Auto Prompt will pause the
execution of the program and prompt the operator to make the necessary
change. The operator would release the Auto Prompt and execution will
continue. |
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B
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A tolerance in which a variation is permitted in both directions from the specified
nominal dimension.
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Bolt Hole Generator
The Bolt Home
Generator is an offline and interactive tool to build and edit Bolt
Hole patterns that contain 2 or more circles. The generator provides
access to edit previously define patterns. |
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C |
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Cartesian Coordinate System
Named after the French mathematician Rene Descartes, the Cartesian coordinate system is
a three dimensional grid consisting of
orthogonal
X, Y, and Z axes with distances marked out along them. For additional information visit
Cartesian Coordinate System in
Measured Features. |
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Cardinal Spline
A Cradinal Spline
is a b-spline curve that passes through every point used in the fitting
calculation. The use of this method ensures that b-splines that cross
through a point, such as used in row and columns share the same
point without "missing" the point which causes errors in surface
generator. |
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Circle Generator
The
Circle Generator is an offline and interactive tool to build or
edit circle features. Through this tool you can edit motion, size,
location and sweep components. |
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Clearance Coordinate Systems
Coordinate Systems that
are defined around the inspection part that are used by the CMM to
transition safely. Clearance CS consist of a XYZ origin and three base
planes. They reference a PCS and contain an offset XYZ distance. |
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CMM Interface
The CMM Interface is the communication driver
between the Coordinate Measuring Machine and Geomet. The assignment of
the Interface is normally done at first installation of Geomet.
To locate the type of interface in use on the CMM, refer to the
About box. |
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Cradle Definitions
Cradle
Definitions are utilized in the EZ Launch Menu System and are
one component in the complete
Fixture Definition. a Cradle is a predefined location that holds
a single part in a repeatable location. A fixture, may have several
cradles. |
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Cylinder
Generator
The
Cylinder Generator is an offline and interactive tool used to
create or edit cylinder features. This tool provides data point
gathering over slices of the cylinder along it's axis and includes
tools to adjust the slices by adding or removing to accommodate such
surface restrictions such as grooves and undercuts. |
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D |
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Datum Bonus Tolerance
A condition where the origin feature can provide MMC or LMC on the position of the
origin with regard to a qualifying measured feature, refer to
Setting
an Origin and Introduction to Tolerance. |
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DCC
Direct Computer Control. A CMM that has motorized capabilities. |
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DirectX
Microsoft DirextX is a group of technologies designed to make
Windows-based computers an ideal platform for running and displaying applications rich in
multimedia elements such as full-color graphics, video, 3-D animation, and surround sound. |
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DXF File Format
Geomet supports exporting in the DXF file format
only the XYZ data point ball centers. |
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E |
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Exclusion Zones
In the building of multi-point features using
feature generators, the Exclusion Zone defines surface and line areas
where the capture of data points will be excluded from the feature being
measured or surface areas during data cloud scanning. One example is the
measurement of a plane where a hole exists. The hole would have a
exclusion zone placed around it and during data point capturing, the CMM
would skip over this area. |
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EZ Launch Menus
EZ Launch
Menus are a defined, single touch access to one or more inspection
programs. |
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F |
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FCS
Fixture Coordinate System |
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Feature Reference
A Feature Reference is applied to a previously measured or constructed feature when it
is used as a component to build a PCS or has been recalled in the inspection report. When
a Feature Reference is attached, the feature is no longer editable. |
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File Locations
The setting for Geomet File location defaults can be found in
System
Options→File Locations. These are the various paths required by Geomet identifying
the program, inspection and system support files. |
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Fixture Definition
The Fixture
Definitions are utilized in the EZ Launch Menu System. This is a
repeatable location of a base plate that contains one or more
Cradle Definitions. |
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Full DRO
Large text Digital ReadOut
available in Geomet ver. 6.66.004.xxx and earlier. |
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G |
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Gage R&R
Geomet Gage R&R is designed to repeatability and
reproducibility of the complete CMM inspection system. Through a series
of trial runs using a production artifact and multiple operators, Gage
R&R will determine the percentage of error of the tolerance band of the
complete system. |
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GeoTracer
A data point gathering tool used with manual
CMMs and hard probes. The GeoTracer
behaves as a drag tool where data points are captured at programmed
intervals. The resulting feature is a collection of data points that can
be fitted with a Cardinal Spline,
or exported to a CAD system for additional use. |
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H |
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Home
On DCC style CMMs, there exists reference marks that establishes a repeatable known XYZ
location. This location establishes the origin for the MCS and creates the motion envelope
used for DCC soft limits,
see Establishing the
Home Position on a DCC CMM.
On Manual CMMs, a home position can be established by one
of two methods. If reference
marks have been installed, the CMM interface will reset the MCS origin when passing over
these marks. When no reference marks have been installed, the Home position is established
by positioning the CMM in a designated corner,
see Establishing the
Home Position on a Manual CMM. |
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I |
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IGES File Format
Geomet export full features in IGES format. This
includes data points, B-Spline Curves generated from Lines and Circles.
B-Spline Surfaces generated from Cylinders, Spheres, Planes, and Cones. |
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Inscribed/Circumscribed Circle Function
The
resulting circle determined from the original best-fit
circle that represents either the smallest outside diameter or largest inside diameter
that will functionally describes the feature. |
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IP
Interim Point. Points entered from the Joystick IP button during the
teaching of motion path that will be used as clearance points. |
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K |
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Keystroke Magic™
Geomet developed
keyboard icon access to most features. |
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L |
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Line Generator
The Line
Generator is an offline and interactive tool to build line
features. |
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Lobing Error
Lobing error is defined as the deviation of the electronic touch probe to its expected
trigger point tested at all locations around the circumference,
see
Technical Note #2 |
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M |
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MCR20 Stylus Rack
The MCR20
Stylus Rack, provided by Renishaw, permits the exchanging of
predefined Stylus Modules with Styli. Used primarily on DCC style
CMMs for greater access to production parts being inspected. |
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MCS
Machine Coordinate System. The active coordinate system that has X, Y, and Z axis
mutually parallel with the X, Y, and Z CMM axis and whose origin is the current home
position of the CMM. |
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MP
Measurement Point. The defined point of contact in manual and DCC part
programs. |
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Multi-Point Probing Errors
The collection of errors that affect the
results on multi-point features. These include inherent probe system
errors, CMM induced errors and operator errors. For more
information, please refer to Technical Note #2 -
Multi-Point Feature and CMM Inherent Errors. |
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N |
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Non-Linear
Compensation
CMM Axis Scales require compensation to
correct for any linear deviation determined by a calibration
process. This compensation factor can vary along the length of the
scale. Non-Linear Compensation
allows the calibration process to enter these correction values. |
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Normal Vector
A normal vector is defined as the angle perpendicular to a point on the geometric
element. |
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O |
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Offline IPs
Interim Points
created with the Offline IP Generator. These
IPs are absolute, relative or automatic and are accessed through feature
generator tools. |
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Orthogonal
Pertaining to or involving right angles or perpendiculars. |
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P |
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PCS
Part Coordinate System. A localized coordinate system normally built on the part being
inspected. |
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Pierce Axis
On features such as Lines and Planes, the Pierce
Axis is the reported 1D value where the features intersects with a PCS
Axis. |
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Pierce Point
On Axial features, such as a Cylinder, the Pierce
Point is defined as the reported 2D Position where the axis pierces a
PCS Base Plane. |
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Plane Generator
The Plane
Generator is an offline and interactive tool to build and edit
plane features. Data points are built in a row and column pattern
and includes the use of Exclusion Zones
to eliminate surface components, such as holes and slots, that are
not to be included in the measuring of a plane. |
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PMAC
Programmable Multi Axis Controller by Delta Tau and used in DCC style CMMs. |
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Point Generator
The Point
Generator is an offline and interactive tool to build 1D, 2D, 3D
and Vector Points. Point arrays can be built to provide point
measurements on surfaces. |
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Pre-Qual
A Stylus that requires validation for size and MCS location. |
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Probe Direction
The Probe Direction is defined as the general
direction the CMM will be moving when capturing data points. For
example; a +Y point would be captured while the CMM is moving in the +Y
direction. A -Z Line was created while probing in the -Z direction. Not
all features require a specified direction, such as a Sphere or
Cylinder. In these conditions the feature is defined as having an Inside
or Outside characteristic. |
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ProCounter
The Helmel designed interface used on manual CMMs to capture the probe and encoder
readings and communicate that data to Geomet. There are 2 versions of the ProCounter,
Version 1 requires an ISA slot and version 2 uses the USB port. |
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Q |
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Quick Zoom
Quick zoom is a graphic option found in
System Options->Graphic Controls.
When activated, the graphic display of Geomet will enlarge to 90%
width of the monitor when the mouse is placed over the graphics. |
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R |
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Radial
Boundary Scan
The Radial Boundary Scan tool is used to
capture data clouds on surface. It utilizes a boundary that is defined by
Radial zone. It produces a data cloud in a
uniform row and column pattern at a specified grid distance. The tool
will perform a contour walking pattern to follow most shapes. The scan
tool takes advantage of Exclusion Zones,
Clipping Planes and constant Z heights to accommodate most shapes. |
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S |
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SO
Stand Off Point. A point created before and after a Measurement Point
whose distance is controlled by the Stand Off Distance, or last distance to the preceding
IP which ever is less. The motion from the SO-MP is controlled by the Probing Speed
setting. |
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Stylus Manager
The Stylus Manager provides access to all functions available
for stylus handling. These include, Qualifying, Re-Qualifying, Labeling, Choosing and
Deleting. |
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Stylus db Manager
A stylus management tool to control the importing, deleting, copying and setting active
individual stylus databases, see Stylus db Manager. |
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SSC - Software Service Contract
An SSC is a contractual relationship between Geomet and its
customers extending technical support and updates of the Geomet Software. |
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System Options
Controls the behavior of Geomet through the setting of default values,
see System Options. |
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T |
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Toolbar
Toolbars offer iconic access utilizing mouse input to more
frequently used functions within Geomet. |
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U |
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Unilateral Tolerance
A tolerance in which variation is permitted in one direction
from the specified nominal dimension. |
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V |
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Version
Level of Geomet
To locate the current version of Geomet,
locate from the main drop down menus [Help→About]. |
