plm09-v4a nxi2nx tp - nxi2nx tpain

8/9/2019 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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2/22

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


3/22

Extracurricular activities


4/22

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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5/22

Issues

Roots of I-DEAS to NX transition Pains

Where does it hurt?

Why?

-

Are we trapped in I-DEAS habits & software induced

constraints?

Is NX really short on I-DEAS functionality?

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6/22

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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7/22

NX

gla

nce

u c anceNX Documentation- NX Essentials - I-DEAS to NX Transition

Cast a glance

NX initial impression

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8/22

I-DEAS to NX Transition

NX

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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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9/22

Tutorial- Hinge assembly

New PartUnits

Sketch & Constrain

ExpressionsExtrude

Shell

NX

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A1

A1

AssemblyReference set?

Layers?

Design in assembly

Interpart relationsError

DetailFillet, Chamfer

Slot

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A1

A1

A1


10/22

4. Extrude from another part

NX

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Uncheck Stop At Intersection & automatic chain

Thanks to PR-02114737

Please Fix it

Solution

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11/22

NX

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+CAST

More revolve

Pattern

Assembly

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12/22

Modeling a Rocker Device

CAST Version: NX 6, Update #1Design

ProjectsPractice Projects

Create a rocker devise

NX

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nce

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13/22

The CAST WayCAST Version: NX 6, Update #1

Design

ProjectsPractice Projects

Create a rocker devise

NX

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Is it the best way?Is design intent clear?

Can it be Quickly & Easily manipulated?

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14/22

My Way1. BORN, Fully Constrained Sketch (Capture design intent)

NX

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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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15/22

Basic Features in NX

Revolve

NX Does not support translation , Radius change NX Helix + Sweep

NX

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A2

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

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

NX

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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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N


17/22

Assembly Mates Do NOT Touch

NX

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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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18/22

A3 - CAST Activity: Build and

constrain a caster assembly

1. Fix

NX

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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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N


19/22

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

NX

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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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N


20/22

3D PMI not shown but

Missing up to date standards:

ASME Y14.5m 2004 & 2009 Dimensioning & Tolerancing ASME 14.41-2003 Digital Product Definition

NX

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Dimension & symbol Placement?

TFE Missing functionality (basic dimensions)

A Confusing array of tools

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N


21/22

NX UI

Love the new NX6 look

Hate the need to revert to menus

The I-DEAS role is nice but not enough

NX

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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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N


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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

NX

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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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plm09-v4a nxi2nx tp - nxi2nx tpain

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