parametric modeling. 3d modeling steps - sketch step 1 sketch geometry (use the “line” tool...
TRANSCRIPT
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Parametric Modeling
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3D Modeling Steps - Sketch
Step 1 Sketch Geometry(use the “line” tool today)
You are making a four-sided shapethat is not necessarily a square at first.Next, you will usethe “parallel” and “perpendicular”GEOMETRIC CONSTRAINT TOOLSto make it a rectangle.
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Sketch Geometry
Line Sketch Tool
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3D Modeling Steps - Constrain
Step 1 Sketch Geometry Step 2 Constrain Geometry
A. Apply Geometric Constraints(try perpendicular and parallel)
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Geometric Constraints Applied First
Geometric Constraint Tools
What do you think we do next?
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3D Modeling Steps - Constrain
Step 1 Sketch Geometry Step 2 Constrain Geometry
A. Apply Geometric Constraints B. Apply Dimension Constraints
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Dimension Constraints Applied Second
Dimension Constraint Tool
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The geometry that has been constrained is a profile of an object.
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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)
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Profile Changed to Isometric
Right mouse click, select Home View or use shortcut key F6 or Click on Home icon by View Cube
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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
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Features Environment
Select Finish Sketch to switch to Features
Environment
From this
To this
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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 EnvironmentC. Preview the Extrusion
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Extrusion Parameters Set
Extrusion Dialogue Box
Select Extrude from Create panel
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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 EnvironmentC. Preview the ExtrusionD. Apply Extrusion
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Profile Extruded
Choose color here
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Summary
Step 1
Extrude
Constrain Geometry
Sketch
Step 3
Step 2
Steps in Parametric Modeling
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Part 2
Parametric Modeling
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Adding a Feature to a Solid Model
Step 1: As we have practiced, we can adda Sketch Plane to the surfaceon which some additionalgeometry will be sketchedby clicking on that surface andchoosing “new sketch”
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Create New Sketch Plane
Sketch plane selected with left mouse click
Sketch Button
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Steps for Adding a Feature
Step 1: Add Sketch PlaneStep 2: Sketch Geometry…
We can use the line tool againto draw the desired shape.
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View Face
Sketch Geometry
Normal View selected with View Face tool or by clicking on front of View Cube
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Steps for Adding a Feature
Step 1: Add Sketch PlaneStep 2: Sketch GeometryStep 3: Constrain Geometry…
We can dimension from anylocation on any object line (a POINT) to another location (different point) on anotherobject line
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Constrain Geometry
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Steps for Adding a Feature
Step 1: Add Sketch Plane Step 2: Sketch GeometryStep 3: Constrain GeometryStep 4: Create Feature
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Feature Parameters Set
Isometric (Home) view selected, Extrusion dialog box set
Choose cut operation here
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Feature Created
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Summary
Step 1 Create Sketch Plane
Constrain
Sketch Geometry
Step 3
Step 2
Create Feature Step 4
Adding a Feature to a Solid Model
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Let’s see it again…This time we will create a hole feature.
We will use a POINT (or center point) as an anchor for the hole we will draw.
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Rotate Model
Dynamic Rotation
View Cube
Rotate model with Dynamic Rotation tool or View Cube
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Step 1 Create New Sketch Plane
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Step 2 Sketch Geometry
This tool used to…
…create center point geometry
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Step 3 Constrain
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Step 4 Create Hole Feature
Hole Feature selected from Modify panel
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Completed Hole Feature
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Model with Hole Feature (skip this step?)
Model in Isometric view with hidden edges displayed
Hidden Edge Display
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Summary
Step 1 Create Sketch Plane
Constrain
Sketch Geometry
Step 3
Step 2
Create Feature Step 4
Adding a Feature to a Solid Model
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Why Parametric Modeling?
Determine the shape and size of the geometry at any time during the design process.
This part shouldbe 5 in. long, not3 in. How can wefix this withoutredrawing it?
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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
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Show your teacher…
• Show your teacher your final model
• You may be asked to demonstrate something using Inventor
• Complete your conclusion questions
• Put your complete assignment in the correct place before you leave class and ask for permission to begin the SketchPlaneCube assignment