alias intro

5/23/2018 Alias Intro

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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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3 2007 Autodesk

Example of 3D Form Development


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4 2007 Autodesk

Example of Design Presentation


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5 2007 Autodesk

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


6/416 2007 Autodesk

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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24 2007 Autodesk

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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25 2007 Autodesk

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

alias intro

Documents

product designers

transportation designers

packaging designers

furniture designers

d forms

autodesksurface modeling

pick nothingall objects

pick nothingde