design freedom powered by synchronous technology with synchronous technology, you can create...
TRANSCRIPT
Benefits of History Based Systems
Traditionally used for:
Families of Parts
Design Automation
Highly Engineered
Template Driven
Promotes best practices and standards
Design process knowledge captured in history
Features
Relationships
Formulas
Inputs you edit• Diameter, D
Output• All holes update
Trivial example
Inputs you edit• Air flow volume• Number of stages• RPM
Output• Compressor design
Design rules are:• Highly complex & proprietary• Exactly the type of information
you do not want to share with other companies ?
Complex example: jet engine
Will Continue to be an important
Approach for Product Development
Challenges of History Based Systems
Where we get stuck…
“I don’t know how this model works.”
“I made this last year, and I don’t remember
how it works.”
“It will take me longer to figure out than it
will take me to recreate it.”
“The designer who made this retired last
month.”
“I think I’ve found a good model… Now
what do I do with it?”
“I need to make a one-off change to a model
from an OEM”Parametric CAD
modelSimple re-use of
CAD models
??
•Edit B-rep data received from another CAD system•JT, STEP, IGES, CATIA, SolidWorks, Pro/E, etc…
•One time change or What-if Design
•History tree difficult to understand •Modifying parametric design is costly•Translation is not viable
Benefits of Synchronous Mode Performs best for
“Unplanned Change”
Design knowledge is added to the model
Extremely easy to use
Increased capacity for “what if” design studies
NX provides tools to add intelligence to the model.…NX provides tools to add intelligence to the model.…
Design Freedom – The Best of Both Worlds
Design intent Automation Top down system design Change propagation
Design intent Automation Top down system design Change propagation
Improved History Based
Local features
Local feature update
No history replay
Local features
Local feature update
No history replay
New History Free
Design Freedom spans both environments
Feature creation Feature editing Direct Modeling Functional feature
recognition Geometric relationships
recognition Accelerated design
creation Design reuse Working with imported
data including JT
Design Freedom spans both environments
Feature creation Feature editing Direct Modeling Functional feature
recognition Geometric relationships
recognition Accelerated design
creation Design reuse Working with imported
data including JT
Shared
Terms
Design Freedom: Design Freedom is a set of new modeling technologies
in NX focused on increasing your productivity by eliminating CAD system overhead.
Design Freedom enables you to focus on designs instead of the CAD system.
Design Freedom is powered by Synchronous Technology, a new modeling engine developed by Siemens PLM Software.
HistoryMode
Synchronous Mode
Synchronous Modeling
Design Freedom
SynchronousTechnology
Synchronous Technology: Synchronous Technology represents a way to interact much more efficiently and intuitively with models—without being confined to the way models were originally constructed.
This new approach to modeling instantaneously synchronizes engineering relationships, features, and parameters through a more direct interaction paradigm. The result is
a design methodology without limitations.
Terms
Synchronous Modeling: (aka DMX, ADM, or Direct Modeling)
Synchronous modeling is an approach for design change with emphasis on modifying the current state of a model without regard for how the model was constructed, its origins, associativity, or feature history. The model could be imported, non-associative, with no features, or a native NX model complete with feature history.
History Mode: (aka Parametric Modeling)
History Mode is a design mode that builds and replays a global feature tree. This design mode is optimal for designing highly engineered parts that undergo complex changes that can be planned for during design creation. In history mode synchronous modeling operations are recorded as features in the history tree and are replayed along with the tree.
Synchronous Mode: (aka History-Free mode)
Synchronous Mode is a design mode that builds local features and dimensions, but does not replay a global feature tree. This design mode is optimal for parts that undergo rapid changes that cannot be planned for during design creation. In history-free mode synchronous modeling operations are created as local features, persistent dimensions, and constraints.
Market Landscape – Approaches
Families / Design Automation / Highly Engineered / Template Driven
Lightweight Designs / Small Changes / Short Lifecycle / One-off/ Manufacturing
History Mode
Synchronous Mode
Face Selection Face Finder (Geometric)
Coaxial, Tangent, Coplanar, Eq. Radius, Symmetric
“Near” vs. “Far” Feature Finder (Topologic)
Single, Region, Tangent, Adjacent, Feature, Rib, Slot, Boss or Pocket
Adjacent Blends Merged Rib Faces
Suggestive Selection Core Commands
Move, Pull, Offset, Replace, Resize Blend/Face, Delete, Local Scale
Reuse Commands Copy, Cut, Paste, Mirror, Pattern Group (for Feature Recognition)
Design Freedom – Functional Overview
Geometric Commands Coplanar, Coaxial, Tangent,
Symmetric, Parallel, Perpendicular Dimension
Linear, Angular, Radial (May be Driving or Driven)
Synchronous Mode Commands Shell
Shell Body, Shell Face, Modify Edit by Cross Section
Synchronous Features Hole, Thread, Blend, Chamfer
Motion Options Distance - Angle
“OrientXpress” Distance Between Points, Point to
Point, Radial Dist., Align Axis to Vector, Rotate by 3 Points, CSYS to CSYS
Face Recognition
Recognize geometric conditions without regard for how the model was constructed
Face Finder – Coaxial, Tangent, Coplanar, Equal Radius, Symmetric
Click face
Find equal diameter
Find coaxial
Move
Recursive coaxial
Face Recognition
Maintain tangent conditions without regard for how the model was constructed
Tangent
Offset
Move
Tangent
Geometry index for fast find
Distinguish near from far to alleviate over-select
Face Recognition: Near vs. Far
Search 2300
Find 18
Feature Recognition
Selection of topology without regard for how the model was constructed
Boss or Pocket, Slot, Rib
Slot
Rib
Boss
Region Recognition
Select a region face
Combination of faces and curves
No requirement to trim curves or subdivide faces
(Coming Soon!)
Region
Face
Extrude
Curves
Suggestive Selection
Additional selection methods offered directly under cursor
Both Face and Feature recognition
No need to plan ahead
Able to change methods iteratively to arrive at best selection
Uses Office 2007 mini-bar concept
Reuse Commands
Reuse of FACES Copy Face: copy face set (scrap) for
reuse Optional Move and Paste immediately
Cut Face: copy, delete from body, and heal
Paste Face: attach scrap to body Extensions of faces based on “add” or
“subtract” attributes
Mirror Face: combination of copy and paste
Pattern Face: rectangular or circular array
Geometric Commands
Applies geometric conditions to geometry
Make Coaxial
Make Coplanar
Make Tangent
Make Parallel
Make Perpendicular
Make Symmetric
Choice of Symmetry Plane(s)
Dimensions
Applies a dimension to the model
Linear
Angular
Radial
Edit Dimension to Move Geometry
Move Geometry to Change Dimension
Add dimensionAdd dimension Edit valueEdit value
Synchronous Commands
A mode of working with NX where linear history does not accumulate
No replay
No Edit with Rollback
Extrude just adds a body
Blend just modifies a body
A curve is just a curve
Shell
Cross Section Edit
Adaptive Shell
Shell behavior without a shell feature
Walls are maintained during DMX commands
Move Face, Offset Region, Make Coplanar, etc
Explicit command set
Shell Body: performs the initial shell
Shell Face: adds faces to an existing shell
Change Shell Thickness
Cross Section Edit
Intersect model with any plane
Intersection curves displayed in the Sketcher task
Edit curves to change the model
Drag, Dimension, Constrain
Exclusive to synchronous mode
Synchronous Features
History-free does not mean feature-free
Synchronous features are recorded and editable:
Hole
Thread
Edge Blend
Chamfer
Feature behavior is desirable even in absence of history
Edit properties via dialog – “edit like create”
Change location via direct modeling History Free … Not Feature Free
Common Interface Blocks
Face Finder block
Suggestive selection service
Motion block
OrientXpress block
Face Finder block
Motion Block
OrientXpress
Motion block
Dimensional and geometric transforms
Motion Options NX 5 NX 6
Distance
Angle
Point to Point
Align Axis to Vector Distance between Points
Radial Distance
Rotate by 3 Points
Protractor
Radial Distance
OrientXpress
Set axis or plane via scene control
Heads-up interaction avoids visiting the dialog
Choice of Reference coordinate system Absolute, WCS, CSYS object Work part or displayed part
Service for reuse in commands or blocks Linear Dimension command,
Motion block
Synchronous Modeling: Summary Provides an intuitive and direct approach to design … it is simple, fast, and reliable.
NX 6 Builds on the strengths of NX 5 in Highly Engineered models
Design Freedom is even more powerful
Adds a new History-Free mode
Market leading functionality
Increased capacity for “what if” design studies
Super Easy CAD – minimal learning curve
Best of both worlds in one Package
Frees you from the limitations of traditional history based modelers
Works equally well on imported parts
Preserves your investment in history based modeling
Powerful tool for CAE and Manufacturing Engineers
Users choose best approach to get the job done
This is the revolution in CAD technology!!
Frequently asked Questions
Is this an additional module?
No, this is a core part of NX ModelingThere is no additional license for this functionality
Can this be used with applications such as MoldWizard?
Yes, we see the direct tools working very well as part preparation tools for manufacturing
Does this work with Product Template Studio?
If a customer is developing a template part they will have more control if they use parametric history
However, if a customer imports data and adds dimensional edits the expressions created can be accessed by PTS making the imported part a template
Are we forcing our customers to learn a new approach?
No, with NX we are continuing to develop the best of both worlds we see customers where parametric modeling is a key part of their process, we also see customers who do not worry about history, NX delivers best of both approaches
Frequently asked Questions
Can this work with JT data?
It relies on a solid model, if the JT data contains XT B-Rep this will be edited.
Is this a separate file type?
No
Do my customers have to translate their data?
If your customer has models that they are already using there is no need to make them history free unless they really want to.
If they want to get the power of the editing offered by Design Freedom they can and that is using the power of synchronous technology