Post on 19-Mar-2021
transcript
Parametric Modeling
© 2011 Project Lead The Way, Inc.Design and Modeling
3D Modeling Steps - Sketch
Step 1 Sketch Geometry
Sketch Geometry
Line Sketch Tool
3D Modeling Steps - Constrain
Step 1 Sketch Geometry
Step 2 Constrain Geometry
A. Apply Geometric Constraints
Geometric Constraints Applied First
Geometric Constraint Tools
What do you think we do next?
3D Modeling Steps - Constrain
Step 1 Sketch Geometry
Step 2 Constrain Geometry
A. Apply Geometric Constraints
B. Apply Dimension Constraints
Dimension Constraints Applied Second
Dimension Constraint Tool
The geometry that has been
constrained is a profile of an
object.
3D Modeling Steps - Extrude
Step 1 Sketch Geometry
Step 2 Constrain Geometry
A. Apply Geometric Constraints
B. Apply Dimension Constraints
Step 3 Extrude the Object from the Profile
A. Change View to Isometric (Home)
Profile Changed to Isometric
Right mouse click, select Home View or use
shortcut key F6 or Click on Home icon by View Cube
3D Modeling Steps - Extrude
Step 1 Sketch Geometry
Step 2 Constrain Geometry
A. Apply Geometric Constraints
B. Apply Dimension Constraints
Step 3 Extrude the Object from the Profile
A. Change View to Isometric (Home)
B. Switch to Features Environment
Features Environment
Select Finish Sketch to
switch to Features
Environment
From this view
To this view
3D Modeling Steps - Extrude
Step 1 Sketch Geometry
Step 2 Constrain Geometry
A. Apply Geometric Constraints
B. Apply Dimension Constraints
Step 3 Extrude the Object from the Profile
A. Change View to Isometric (Home)
B. Switch to Features Environment
C. Preview the Extrusion
Extrusion Parameters Set
Extrusion Dialogue Box
Select Extrude from Create panel
3D Modeling Steps - Extrude
Step 1 Sketch Geometry
Step 2 Constrain Geometry
A. Apply Geometric Constraints
B. Apply Dimension Constraints
Step 3 Extrude the Object from the Profile
A. Change View to Isometric (Home)
B. Switch to Features Environment
C. Preview the Extrusion
D. Apply Extrusion
Color ToolChoose color here
Color ToolChoose color here
Summary
Step 1
Extrude
Constrain Geometry
Sketch
Step 3
Step 2
Steps in Parametric Modeling
Part 2
Parametric Modeling
Adding a Feature to a Solid
Model
Step 1 Add Sketch Plane to surface on which
geometry will be sketched
Create New Sketch Plane
Sketch plane selected with left mouse click
Sketch Button
Steps for Adding a Feature
Step 1 Add Sketch Plane
Step 2 Sketch Geometry
Sketch Geometry
Normal View selected with View Face tool
or by clicking on front of View Cube
Add line to Front face
Steps for Adding a Feature
Step 1 Add Sketch Plane
Step 2 Sketch Geometry
Step 3 Constrain Geometry
Constrain Geometry
Steps for Adding a Feature
Step 1 Add Sketch Plane
Step 2 Sketch Geometry
Step 3 Constrain Geometry
Step 4 Create Feature
Feature Parameters Set
Isometric (Home) view selected,
Extrusion dialog box set
Choose cut
operation here
Feature Created
Summary
Step 1 Create Sketch Plane
Constrain
Sketch Geometry
Step 3
Step 2
Create FeatureStep 4
Adding a Feature to a Solid Model
Let’s see it again…
…this time we will create a hole feature.
Rotate Model
Dynamic Rotation
View Cube
Rotate model with Dynamic Rotation tool or View Cube
Step 1 Create New Sketch Plane
Step 2 Sketch Geometry
This tool used to…
…create center point geometry
Step 3 Constrain
Step 4 Create Hole Feature
Hole Feature selected from Modify panel on 3D Model tab
Completed Hole Feature
Model with Hole Feature
Model in Isometric view with hidden edges displayed
Hidden Edge Display
Summary
Step 1 Create Sketch Plane
Constrain
Sketch Geometry
Step 3
Step 2
Create FeatureStep 4
Adding a Feature to a Solid Model
Why Parametric Modeling?
Determine the shape and size of the geometry
at any time during the design process.
This part should
be 5 in. long, not
3 in. How can we
fix this without
redrawing it?
Why Parametric Modeling?
Benefits
– Shape before size
– Geometric and dimension constraints used to
capture design intent
– All files can be quickly updated
– Existing data can be used for new designs
– Quick design turn around