wireframe and surface design v5r8 update
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Copyright DASSAULT SYSTEMES 2002 1
Wireframe andSurface Design
V5R8 Update
CATIA TrainingFoils
Version 5 Release 8
January 2002
EDU-CAT-E-WFS-UF-V5R8
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Course Presentation
Objectives of the courseIn this course you will see the main enhancements in creating wireframe constructionelements and enriching existing 3D mechanical part design with wireframe and basic
surface features.
Targeted audienceCATIA V5R7 users
PrerequisitesV5R7 CATIA Wireframe and Su rface Design
1 hour
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Table of Contents
1. Introduction to Wireframe and Surface Design p.4
User Interface: Wireframe and Surface Design p.5
2. Creating Wireframe Elements p.6Creating a Polyline p.7
Other Enhancement about Wireframe p.11
3. Creating Surface Elements p.16
Creating an Offset Surface p.17
4. Performing Operations p.18
Applying an Axis-to-Axis Transformation p.19
Other Enhancements about Operations p.24
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The Wireframe and Surface Design user interface
You wil l become fam il iar with the Wireframe and Surface DesignWorkbench.
Introduction to Wireframe and Surface Design
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User Interface: Wireframe and Surface Design
V5R8
V5R8
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Creating a Polyline
Other Enhancements :Creating a Spline Curve
Creating a Connect Curve
Intersecting Elements
In this lesson you learn how to create som e types of Wireframe Elements :
Creating Wireframe Elements
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Why create Polylines ?
You can use this tool to create rapidly a polyline :
V5R8
Not using the point-point chain mode tool :
Using the line point-point chain mode tool :
Creating the lines point-point :
n-1 operationsInput data : 4 points
Input data : 4 pointsCreating the polyline:
1 operation
Whatever the number of point you want to
use, only one operation is necessary to create
the polyline.
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Lets see now how to create a Polyline ...
How to create a PolylineV5R8
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Click OK to create the Polyline.
1
2 Select already existing points
Creating a Polyline
3
You can now create a Polyline in one operation.
V5R8
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You w il l learn oth er enhancements in the Wireframe Creation
of the Wireframe and Surface Design wo rkbench
Other Enhancement about WireframeV5R8
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Creating a Spline Curve
You can now use a curve to specify a tangency condition at a point of the spline
Create the spline selecting
existing points.
1
2
Select the point on which you want to add
a tangency condition and expand the
Parameters panel.
3
In the constraint type field, choose the new option
From curve that allows you to choose a curve to
add the tangency constraint.
Now you can select a curve to specify the
tangency constraint :
V5R8
4
Note : the point of the
spline must lie on the
selected curve.
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1
2Select the first curve to
connect and a point on
this curve.
Creating a Connect Curve
4 If needed click on the
red arrow located oneither point to
reverse the
orientation of the
associated curve, or
use the dialog boxs
new option.
Curve 1
3 Select the second curveto connect and a point on
this curve.
Point 1
Point 2
Curve 2
Curve
orientation
Creating a connect curve, you have now the possibility to invert the
orientation of the associated curve from the dialog box
V5R8
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1
2 Select the two curves.
Intersecting Elements : Type of created Elements (1/2)
3 Choose the type of
element you want togenerate.
You can choose the type of elements that is created when you perform an
intersection operation :
V5R8
The type of element that was selected
is created (in our exemple, it is a curve
that is created).
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Intersecting Elements : Type of created Elements (1/2)
Four different type of element can be generated :V5R8
- Points : when
intersecting two curves
or a curve and a surface. - Curves : when intersecting
two curves or a curve and a
surface.
- Faces : when intersecting a surface
with another or a surface with a pad.
- Contours : when intersecting a
surface with another or a surface
with a pad.
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Creating an Offset Surface
In this lesson you learn how to create som e types of Surface Elements :
Creating Surface Elements
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1
Creating an Offset Surface
2 Select the reference surface and key inthe offset value.
Click OK to confirm the offset creation.
If you want to create both side of the
offset surface, choose the Check both
side option.
3
4
You can now create both side of an offset surface with the same offset distance.
Reference surface
V5R8
f O
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Transforming Elements Axis-to-AxisOther Enhancements
Splitting and trimming Elements
Healing Surfaces
Joining Surfaces
In this lesson yo u learn how to p erform some Operations :
Performing Operations
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You w il l learn how to perform an Axis -to-Axis transformat ion.
Applying an Axis-to-Axis transformationV5R8
Wh t i A i t A i t f ti ?
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What is an Axis-to-Axis transformation ?
An Axis-to-Axis transformation transform geometry positioned according to an axis
system into another axis system :
V5R8
Reference Axis System
Target Axis System
Element to transform
Transformed Element
The green surface has been duplicated
and positioned according to the new
axis system.
H t l A i t A i t f ti
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Lets see now how to apply an Axis-to-Axis transformation ...
How to apply an Axis-to-Axis transformationV5R8
A l i A i t A i t f ti V5R8
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Click OK to create the transformed
surface.
1
2 Select the element to transform.
Applying an Axis-to-Axis transformation
3Select the reference Axis System.
4 Select the target Axis System.
5
V5R8
Other Enhancement about Operations
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You wil l learn other enhancements in the Operat ions of the
Wireframe and Surface Design w orkb ench
Other Enhancement about OperationsV5R8
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Healing Surfaces : distance objective
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Healing two surfaces, you have now the possibility to allow a remaining gap
between the surfaces.
Healing Surfaces : distance objective
Select the
surfaces to heal :12
If you should decide to allow a remaining gap between
the surfaces, key in the maximum tolerated value of
this gap.
Then CATIA inform you about the value of the
remaining gap :
3
4
0.2 mm gap
Key in a merging distance superior to the gap value.
V5R8
Joining Surfaces : Angle Tolerance
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Joining Surfaces : Angle Tolerance
While joining surfaces, you can specify an angle tolerance.
If the angle value on the edge between two elements is greater than the Angle
Tolerance value, the elements are not joined
Select the elements to bejoined. The tangency
discontinuity between these
surfaces is 6deg :
1 2
V5R8
3
Click OK to
confirm the join
creation.
4
Activate the newoption Angle
Tolerance.
CATIA refuses to create the join
surface because the tangency
discontinuity between the
surfaces is greater than the
specified angle tolerance:
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