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Alias Entrenamiento
Sebastian Zaje.
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Introduction to AliasStudio
Computer Aided Industrial Design/
Computer Aided Styling (CAS)
Specializing in complex 3D forms and organic shapes:
Sketching Tools
3D NURBS Modeling
Interactive Work-in-Progress Rendering
High-Quality Rendering and Animation for Presentation
Technical Surfacing for Production
Used by... Product Designers, Transportation Designers, Packaging Designers,
Furniture Designers, etc.
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Example of 3D Form Development
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Example of Design Presentation
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AliasStudio in the Design Process
Sketchingand
Concepts
Design
Presentation
3D Form
Development
Component
& Assembly
Engineering
Mechanical
& Electrical
Design
Engineering
Analysis
AliasStudio
CAID
Engineering
CAD
Systems
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Surface Modeling vs. Solid Modeling
AliasStudioSurface Models
Interested in:Form & Function
Beautiful Shapes
HighlightsColor & Materials
Styling Lines
Manufacturability
Visual Impact
Fashion/Trends
Engineering CADSolid Models
Interested in:Form & Function
Manufacturability
StrengthKinematics
Dynamics
Performance
Materials
Sustainability
Cost
AliasStudio
Surface ModelsEngineering CAD
Solid Models
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Simplified Interface
Limited use of
the Control
Panel
Use the Help Menu
Pick
&Transform
Palettes open
No Marking Menus
or Shelves
Prompt Line
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Full Interface
Menu
Prompt Line
Work Area
Layer Bar
Palette
Shelf
Control Panel
Marking
Menus
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Navigating Views
Tumble Track
(Pan)
Zoom
(Dolly)
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Working with Windows
LayoutsMenu
The Layouts Menu offers different pre-set arrangements of
the modeling windows. The most commonly used
arrangement of four windows is given the hotkey F9use
this to quickly return to viewing the four windows at any
time.
Active WindowShown with a white
border instead of ablack one.
Window
Icons
Close Box Maximize Box
Title Bar
Resize Corners (4)
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Directory Structure
User_data Directory Standard Project Structure Lessons Project Structure
Projects
user_data
where all your
project design
work is filed
Only the wireand pix
directories are provided, to
save space. The otherdirectories can be created
when required.
See what you
can achieve
when youre wellorganized....
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Pick Nothing, Pick Object
Click/Drag
Single Click (unambiguous selection)
Single Click (ambiguous selection)Pick ChooserKeep the mouse button
held down and move
between the selections
on the list. Release
when you have found
the right one.
Pick NothingDe-selects all
objects
Pick Object
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Control Panel: Diagnostic Shading
Not all options are available...It depends which version of
AliasStudio you have.
Pick NothingAll objects will be
shaded/unshaded
Pick ObjectSelected objects will
be shaded/unshaded
Diagnostic ShadingShade Off/Shade On
Surface QualityA tolerance of 0.01 will be more accurate
and smooth. Use the slider to modify.
Fast / AccurateUse Accurateonly if you get poor shading
results from Fast. Accuratecan be very slow
on large models.
Click on theTo open the Color
selector
Use this to create
different colors for
different parts of the
geometry.
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Perspective Window: Viewing Panel
Preset ViewsTop, bottom, and all sides,
plus the 3/4 views.
Look at selected objects.
Enable/disable perspective
Open BookMarks list
BookMarks EditorUse ctrl and double-
click to re-name a
bookmark
Return to the
previous view
Click newto save a
view and create a
new bookmark for it.
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Positioning Objects Accurately
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Positioning Objects Accurately
Ambiguous Instruction
Align the red box with the
corner of the table
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Two Steps to Position an Object Accurately
Unambiguou
s Instruction
Instruction 1:
Put the center of the
base of the box.
Instruction 2:
exactly on the near,
r ight-hand corner of
the table.
Unambiguou
s Result
Techniques
Snapping
Snapping
Tools
Set Pivot
Center Pivot
Move
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Snapping: Accurate Placement
Snap to points
Snap to grid
Snap to curves
Hold down the Alt key, and click close to a grid
Hold down the Ctrl key, and click close to a point
Hold down the Ctrl + Alt key, and cl ick and hold onto a curve or surface line and drag along the curve/line
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Advanced Snapping
Free
Horizontal
Vertical
Snapping + 2D Windows + Mouse Constraints
Grid Snap
Point Snap
Curve Snap
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Mouse Constraints
Orthographic
Windows:
Move, Scale, Non-
P Scale
Perspective
Window:
Move, Scale, Non-
P Scale
Free Horizontal Vertical
X Y Z
Al l Windows:
Rotate
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Pick Component
The Pick Component
options can be changed using
the toolbar
Some of the Primitive shapes are groups of separate surfaces:
To pick individual surfaces within a group, use Pick Componentinstead of Pick Object
A cylinder is
three
surfaces
A cube
is six
surfaces
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Curve Snap Options
OptionsThe arrow opens the
curve snap options, which
allow you to increase thesnapping options when
using curve snap.
Snapping TogglesIf you are doing a lot of
the same type of
snapping, you can click
these icons to keep the
snap active.
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Working Accurately: Dimensions
Freeform, creative design...
... is also accurate,
constrained and disciplined.
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Working Accurately
A concept will only be
successful if all the dimensional
constraints have been fully
considered and integrated into
the final design.
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Where to Start Setting Units
Preferences Construction
OptionsTo set the modeling units and the tolerances for
data export
You will typically only change the main units.
Opening a File
The Construction Options settings are
saved with the file.
When opening a new file, if the settings are
different, you are prompted to decide whichsettings to use.
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Where to Start Setting Up the Grid
What is the Grid Used For?
Snapping to
Center-Lines
for symmetry and
rotation axes
Sense of Scale
The other grid-lines
give a sense of scale
Snapping at a Spacing
Occasionally you will
change the grid spacing to
give a particular spacing for
snapping
Setting the Grid Spacing
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Entering Dimensions: Prompt Line
Entering Coordinate
Dimensions
Typing Coordinates
Type r or a [enter] to
switch modes
x, y and z can be
separated by a space or
a comma
Trailing zeros can be
omitted.
Zeros before values are
needed
The r or a can be
combined with the
coordinate input
Absolute Zero is usefulfor the origin
You cant specify unitswith the dimension
You cant do equations
While addressing in absolute mode, an object
will be: (1) moved to the grid position specified,
(2) rotated to the absolute degree value
specified for each of the three axes, or (3)scaled based on its original size.
When in relative addressing mode, objects are
moved, scaled or rotated, relative to the
objects current position, scale or rotation.
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Entering Dimensions: Information Window
X Y Z
Displays information forthe picked object(s).
View the current
dimensions.
Change one coordinate
at a time.
Primitives & the InformationWindow
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Duplicate Object
Transform Info
The same way of showing
dimensions in the Information
Window is used in the
Duplicate Object tool.
NumberType in the number of
addit ionalobjects you
need. For example, a six
spoke wheel will need 5spokes duplicated from
the original.
Transform
Type in the transform
required for eachduplicate
Reset
Returns all the valuesto zero and one
Option Window
Click on the smallsquare to open the
option window
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Curves
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Two Types of Curves
Freeform Curves Keypoint Curves
Curve shape
controlled by CVs
Curve shape
controlled by keypoints
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Freeform Curves Terminology
Control
Vertex
Points used
to shape the
curve/surface
Edit Point
Points showing
the number of
spans in a curve
Hull
Lines
connecting a
row of CVs
Span
Part of a curve
between two
edit points
Start
The first CV is
displayed as
The second
CV is shown
as
Together theyshow the
direction of the
curves
Control Panel
Use to change the
number of spans
(and therefore
CVs) in a curve.
At the start and end of
a curve, there is a CV
and an Edit Point.
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Creating New Curves
Create NURBS Curves
Place 4+ CV points
Place 2+ Edit points
Place 2 Keypoints
Place 3 Keypoints
To modify...
Pick CV
Transform Move
Transform Drag
Keypoints
Windows Information
Information Window
Create Keypoint Curves
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Where to Position CVs
If you want a constant, regularly changing
curve shape, then the CVs should be
evenly spaced, and you should have as
few CVsas possible.
If you need to create a strong change in the
direction of a curve, youll need to bunch
up extra CVs to control the shape.
This method is OK for quick, concept
modelling but not for high quality,
controllable surfacessee the technique
below.
One of the skills you will develop is to judge
when a shape should be made out of a
single curve or from separate curves
joined together.
Curve 1
Curve 2
Curve 3
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Curve Tools: Curve Section
Global Curve IntersectCurve Edit Curve SectionIn this sketch, curves aredrawn across each other.
Even when drawingaccurate curves, it issometimes easier to drawoverlapping curves, andthen trim them to create thefinal design.
This is a Plug-in whichis useful for complexlayouts such asnumeric keypads.
This function can beused to trim or splitcurves where theycross.
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Curve Techniques: Center-Line Symmetry
When using the Revolve tool, having two CVs perpendicular to the rotation axis gives a smooth transition.
Use snapping and mouse
constraints to align the first two
CVs.
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Layer Symmetry
If geometry is assigned to a layer, thenLayer Symmetrycan be used to create
a mirror image.
If the original geometry is modified, themirrored geometry will update.
Layers Symmetry Set Plane
To set the direction of mirroring
Object Edit Align Symmetry Plane
Align
To create a tangent relationship between
the two CVs on the center-line
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Other Curve Tools
Curve Edit
Add Points: Adds new CV points to the end of a curve. Use with....
Reverse Curve: Swaps the direction of the curve
Object Edit
Attach: Connects two curves to create a single curve (but beware,
they will soften)
Detach: Splits a curve into two parts
Insert: Puts extra Edit Point (and hence extra span and an extra CV)into a curve
Extend: Lengthens or shortens a curve without changing its shape
Offset: Creates a new curve, offset from the original
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Sculpting with CVs
3D Model
Control Vertices (CVs) are
used to accurately describe adesign as a 3D model.
Control of CVs
Similar expertise and fluency
in sculpting with CVs will give
full control over a design
developed in 3D.
2D Drawing
Sketched curves are used to
describe a design in a 2D drawing.
Control of the Pencil
Expertise and fluency in sketching
is essential to a designer.
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Shapes & Smoothness
For Smoothness
For Industrial design, you will typically be aiming for smooth,
clean curves and surfaces.
Fewer CVs will create a smoother curve/surface.
A single-spancurve/surface will be the smoothest.
For Complexity
To trace out the shape of this
characters ear, you will need
many CVsand many spans to
get the crinkly style of the
shape.
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Number of CVs: Controlled by Degree andSpans
Number of CVs =
Degree + Number of Spans
Your choice: Change Degree or Change Number of Spans