Plm09-V4a Nxi2nx Tp - Nxi2nx Tpain
Transcript of Plm09-V4a Nxi2nx Tp - Nxi2nx Tpain
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I-DEAS CAD to NX
rans on a nsGili Omri
Technion - ISRAEL
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Land Systems Research Division Paper to Prototype R&D Unit
Multidisciplinary Mechanical systems Mechanical, hydraulic, Electro Mechanic, control
Project size:
One man jobs
Large scale international, Academy Industry programs,
partners & subcontractors
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MultiPhysics
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Extracurricular activities
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CAD Track record
I-DEAS Track
1994 I-DEAS Master series 1.3
Currently NXI6m1
NX3 quick peek
NX4 testing & evaluation (assembly mates-party stopper)
NX5 Testing new assembly constraints at last (TCE issues)
NX6 Beta off site Beta tester
NX6 pilot production project (native, TC install issues!!!)
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Issues
Roots of I-DEAS to NX transition Pains
Where does it hurt?
Why?
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Are we trapped in I-DEAS habits & software induced
constraints?
Is NX really short on I-DEAS functionality?
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Overview The Plan
NX glance
I-DEAS to NX Tutorial & CAST (hands-on)
NX initial impression
What are business objectives?
What are the aligned CAD best practices?
Is BORN Blue obsolete?
Back to NX
NX workout & workarounds (hands-on)
Conclusions
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NX
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u c anceNX Documentation- NX Essentials - I-DEAS to NX Transition
Cast a glance
NX initial impression
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I-DEAS to NX Transition
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Started the Journey with the roadmap%UGII_ROOT_DIR%\UGDOC\html_files\roadmap\index.html
Hands-On
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Tutorial- Hinge assembly
New PartUnits
Sketch & Constrain
ExpressionsExtrude
Shell
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A1
A1
AssemblyReference set?
Layers?
Design in assembly
Interpart relationsError
DetailFillet, Chamfer
Slot
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A1
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4. Extrude from another part
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Uncheck Stop At Intersection & automatic chain
Thanks to PR-02114737
Please Fix it
Solution
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NX
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+CAST
More revolve
Pattern
Assembly
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Modeling a Rocker Device
CAST Version: NX 6, Update #1Design
ProjectsPractice Projects
Create a rocker devise
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The CAST WayCAST Version: NX 6, Update #1
Design
ProjectsPractice Projects
Create a rocker devise
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Is it the best way?Is design intent clear?
Can it be Quickly & Easily manipulated?
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My Way1. BORN, Fully Constrained Sketch (Capture design intent)
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3. Extrude collar to 37mm
2. Extrude to 25mm
And now?Is design intent clear?Can it be Quickly & Easily manipulated?
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Basic Features in NX
Revolve
NX Does not support translation , Radius change NX Helix + Sweep
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a ern ec angu ar rray
WCS dominated, only regular, node per instance
Pattern face (independent axis, synchronos)
Pattern - Circular Array Part can not remain at the same aisle when the pattern
is generated.
NX manually?
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A2
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NX - Assembly construction
approaches
Copies all part data into the assembly file.
None of the resident parts are linked to their
Multiple part assemblies
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Links the parts that make up an assembly. Virtual assemblies contain component objectsand pointers, which can point to parts orsubassemblies.
Virtual assemblies (I-DEAS like)
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Assembly Mates Do NOT Touch
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No Ground
Differ from sketch constraints
Unlike in I-DEAS, mating conditions are directional.
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This means that the first component is positioned relativeto the second component in the mating condition (no way
back from first choice)
Some resemblance to a Line to Line / Face to Facenightmare
Normal direction matter, Why should I care about them?
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A3 - CAST Activity: Build and
constrain a caster assembly
1. Fix
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2.2 Face 2 Face
4.1 Centerline 2 Centerline
4.2 Plane 2 Plane
3.1 Centerline 2 Centerline
3.2 Face 2 Face
Wow that had an I-DEAS feel
Although:
1. It is over constrained
2. There are open rotational DOF
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Assembly constraintsDescriptionconstraint
Fixes a component at its current position.Fix
Constrains two components so they touch or align with each other.Touch Align
Specifies the minimum 3D distance between two objects.Distance
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e nes an ang e mens on e ween wo o ec s.ng e
Defines the direction vectors of two objects as parallel to each other.Parallel
Defines the direction vectors of two objects as perpendicular to each other.Perpendicular
Welds components together so they move as a rigid body.Bond
Centers one or two objects between a pair of objects, or centers a pair ofobjects along another object.
Center ?
Constrains circular or elliptical edges of two components so the centers are
coincident and the planes of the edges are coplanar.
Concentric?
brings together two cylindrical faces with equal radii. useful for locating pins or
bolts in holes. If the radii later become non-equal, the constraint is invalid
Fit?
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3D PMI not shown but
Missing up to date standards:
ASME Y14.5m 2004 & 2009 Dimensioning & Tolerancing ASME 14.41-2003 Digital Product Definition
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Dimension & symbol Placement?
TFE Missing functionality (basic dimensions)
A Confusing array of tools
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NX UI
Love the new NX6 look
Hate the need to revert to menus
The I-DEAS role is nice but not enough
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Find it hard to get used to:
Endless customization options
Depth of menus
Split scattered & overlapping Commands
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Initial Impression
Represents the link with the brides family & the past
UG Legacy (WCS, layers)Something Old
Represents good fortune & success in the brides new life
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NX stuff
Serves to remind the bride that friends & family will bethere for her when help is needed
I-DEAS concepts brought over (BORN, sketch on plane)Something Borrowed
Is the symbol of faithfulness & loyalty (a blue garter?)
I miss some I-DEAS senseSomething Blue
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