Module 27Surface Modeling Overview
PTC Authorized Training Center - Basic Design increo elements / pro 5.0
Objectives
After completing this module, you will be able to: Describe the capabilities and uses for a surface modeling environment. Describe the parametric and freeform surface modeling paradigms. Describe how the parametric and freeform surface modeling paradigms can be integrated. Discuss surface modeling terminology.
Introduction to Surfacing
The figures in this slide illustrate examples of models that have been developed using Pro/ENGINEERsurface modeling tools.
Surface modeling enables you to design the modelsthat have:
Geometric shapes with high curvatures, or curvaturein two directions.
Fluid, sculpted, or organic shapes. Shapes that cannot be designed using solidfeatures.
Smooth shapes with tangent or curvature continuity. Surface Modeling Scenarios
Helmet
Camera
Faucet
Hedge Trimmer
Surface Modeling Uses
You can use surface modeling for a variety of situations.
You use surface modeling to:
Design enclosures. Visualize and develop conceptual designs. Design thin-walled components with complexshapes.
Fix problems in imported surface data. Design tooling. Redefine and manipulate solid models. Define complex fillets. CD Player
Casting Manifold Molding
Surface Modeling Paradigms
In comparison to solid modeling, the surface modeling paradigm uses very different approaches, techniques,and workflow.
Parametric Surface Modeling:
Driven by dimensions, parameters, andmathematical equations.
Surface Modeling course. Freeform Surface Modeling:
Driven by intuition, feel, and aesthetic requirements. Freeform Surface Modeling Course.
Choosing appropriate method:
Design Input Design Intent Designers background
Sheet Panel
Door Interior
Freeform Overview
The Style tool is a powerful and comprehensive surface modeling tool.
Creating a Freeform Curve
Style Tool
Freeform Curves Surfaces
Creating the Surface
Creating a Second Freeform Curve
Blending Surface Modeling Paradigms
Many product shapes can be constructed using a combination of parametric and freeform surface features.
Designing a Ring
Blending the two paradigms Many product shapes can utilize a combination of:
Parametric surface models with freeform curvesand surfaces.
Freeform surface models with parametric frameworkand relations.
Designing a Freeform Surface
Parametric Framework
Surfacing Terms
Surface modeling terms are important to understand because they are used throughout this course.
Surfaces
Quilt Surface Patch Solid Surface Datum Planes
Edges
Surface edge One-sided Two-sided
Solid edge
Viewing a Surface
Surface Quilt
Solid Surface and Edge
Surface Edge
Module 28Advanced Selection
PTC Authorized Training Center - Basic Design increo elements / pro 5.0
Objectives
After completing this module, you will be able to: Understand advanced chain selection. Understand advanced surface selection.
Advanced Chain Selection
You can select multiple edges in Pro/ENGINEER using different types of chains to increase efficiency andfeature robustness.
Chain types:
Intent chain One-by-one Tangent chain Surface loop Surface loop from to Boundary From-to Boundary loop Multiple chains
Selection methods:
Direct with mouse Chain dialog box
Intent Chain
Surface Loop
Advanced Surface Selection
You can select multiple surfaces in Pro/ENGINEER using different types of sets.
Surface set types:
Individual Surfaces Solid Surfaces Intent Surfaces Seed and Boundary Loop Surfaces Exclude Surfaces
Selection methods:
Direct with mouse Chain dialog box
Selecting Multiple Individual Surfaces
Selecting a Surface Loop
Module 29Basic Surfacing Tools
PTC Authorized Training Center - Basic Design increo elements / pro 5.0
Objectives
After completing this module, you will be able to: Create Extrude, Revolve, and Fill surfaces. Create sweep surfaces with open trajectories. Create parallel blend surfaces. Create general blend surfaces.
Creating Surface Extrude Features
Create extruded surface features from 2-D sketches.
Extrude surfaces perpendicular to the sketchingplane.
Extrude open section sketches. Extrude closed section sketches.
Capped ends
Extruded Open Section Sketch
Extruded Surface, Open Ends, Closed Section Sketch Extruded Surface, Capped Ends, Closed Section Sketch
Creating Surface Revolve Features
Create revolved surface features from 2-D sketches.
Revolve a section about an axis of revolution in asketching plane.
Select different axes of revolution:
First sketched Geometry Axis Existing Axis Existing Straight Curve or Edge
Revolve open section sketches. Revolve closed section sketches.
Capped ends Viewing a 2-D Sketch
Same Revolved Sketch using Different Axes of RevolutionRevolving a Closed Section Sketch, Open
versus Capped Ends
Creating Fill Surfaces
You can fill a sketch to create a planar surface.
Sketch rules:
Must use a sketched curve.
Can be internal or external. Must be closed.
Can have multiple loops. Can be any shape. Can reference other geometry.
Filling a Sketch
Fill Surface Containing Multiple Loops
Creating Sweep Surfaces with Open Trajectories
A sweep surface feature consists of a sketched section that sweeps, or traverses, along a trajectory.
Sweeping a Closed Sketch Along an Open Trajectory
Components of a sweep feature:
Trajectory
Selected or sketched Start point
Sketched section
Closed or open Crosshairs mark the trajectory
Attributes:
Open Ends Capped Ends
Sweeping an Open Sketch Along an Open Trajectory
Creating Parallel Blend Surfaces
A parallel blend surface feature blends sections along a dimensioned, linear distance.
Blend Sections
Components of a blend feature:
Sections:
At least two required. Toggle section. Equal number of entities per section. Line up start points.
Direction. Depth.
Blend Depths
Creating General Blend Surfaces
A general blend rotates sections about the X, Y, and Z-axes of a Sketcher coordinate system and translatessections along the Z-axis.
Viewing the General Blend Sections
Section requirements:
Translation distance along Z-axis. Rotation angles about X, Y, andZ-axes.
120 maximum
Sketched coordinate system. System lines up coordinate systems:
Typically sketched at center ofsection.
Sketched Section
Module 30Helical Sweeps
PTC Authorized Training Center - Basic Design increo elements / pro 5.0
Objectives
After completing this module, you will be able to: Understand the theory behind helical sweeps. Utilize helical sweeps for surfaces.
Understanding Helical Sweeps Theory
Helical sweeps can be used to create springs, threads, or other helical geometry.
Can be protrusions, cuts, or surfaces. Helical sweep components:
Sketch profile Sketch section Pitch value
Helical sweep options:
Pitch type Cross-section angle Helix direction
Helical Geometry
Threads Cut Into a Part Model Spring
Utilizing Helical Sweeps for Surfaces
Helical sweep surfaces are typically used to create datum curves and other construction geometry.
Uses include:
Construction geometry
Typically used to create other geometry Trim/Merge with other surfaces
Datum curve construction
Create helical or spiral curves
Helical Surface
Helical Curve Spiral Curve
Module 31Creating and Editing Solids using Quilts
PTC Authorized Training Center - Basic Design increo elements / pro 5.0
Objectives
After completing this module, you will be able to: Thicken quilts. Solidify quilts to add and remove material, as well as patch material. Offset surfaces using the Replace option.
Thickening Surface Quilts
With the Thicken tool, you can offset a selected quilt to create or remove material.
Thickening a Surface
Basic controls:
Add material Remove material Thickness value Flip direction
Thickening options:
Thicken type Normal to surface Automatic fit Controlled fit
Excluded Surfaces
Adding or Removing Material Thickening a Bottle
Solidifying Quilts to Add Material
You can use the Solidify tool to add solid material to a model, based on a surface quilt.
To be solidified for adding material, a quilt must definea closed volume.
An enclosed quilt. An open quilt surrounded by existing solid material.
Original Surface Quilt
Solidified Surface Quilt
Adding Material by Solidifying a Quilt
Solidifying Quilts to Remove Material
You can use the Solidify tool to remove solid material from a model, based on a surface quilt.
To be solidified for removing material, a quilt mustdefine a volume to remove from the model:
An enclosed quilt. An open quilt bounded by existing solid material. An open quilt overlapping the model: Must pass completely through.
A datum plane.
Removing Material using a Quilt
Removing Material using a Datum Plane Removing Material using an Enclosed Quilt
Solidifying Quilts to Replace Material
You can use the Solidify tool to add and remove solid material simultaneously, based on a surface quilt.
Viewing the Quilt
Commonly referred to as Patch. Choose to keep material on either side. Add and remove material simultaneously from multiple
surfaces. Quilt boundaries must lie on the surfaces.
Replaced Material
Offsetting Surfaces using the Replace Option
Using the Replace option in the Offset tool, you can replace a single solid surface with a quilt.
Uses:
Add material. Remove material. Simultaneously add and remove material.
By default, the quilt is consumed by the replacefeature.
Keep replace quilt.Offset using Replace that Adds Material
Offset using Replace that Removes Material Offset using Replace that Adds and Removes Material
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