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Module 02: Creating Geometry

Introduction to ANSYS SpaceClaim Direct Modeler

17.0 Release

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In this module we will learn about:

    • Modes in SCDM
    • Sketching Tools
    • 3D Modeling Tools
    • Detailing

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Overview

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Core Skills

Creating

Geometry

Repairing Geometry

CFD Modeling

Overall Process

Module 2

Module 3

Module 1

Module 4

Module 5

Module 6

FEA Modeling

SCDM to Workbench

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    • 3 modes available for designing:
      • Sketch mode

Enables sketch grid for creating 2D sketch

      • Section mode

Enables editing of solid and surface bodies by working with their edges and vertices in “cross-section” view

      • 3D mode

Enables 3D modeling mode for creating/editing geometries

Sketch Mode

Section Mode

3D Mode

Modes in SpaceClaim Direct Modeler

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Sketch Grid

    • Sketches are created on a “Sketch Grid”
    • Sketch Grid can be created on
      • Any planar surface
      • Any existing Plane
        • (details about plane creation discussed later)
      • Combination of any geometrical entities which define a planar surface
        • 2 coplanar lines
        • Line and 1 point
        • Coordinate axes etc.

Sketch Grid

2 coplanar axes selected

Creating Sketches (1)

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Sketch Creation tools

    • Hosts standard tools for creating sketches
      • Line
        • Single, polyline, tangent line, construction line
      • Rectangle
        • 2 point, 3 point
      • Circle
        • Center, 3 point
      • Ellipse
      • Polygon
      • Arc
        • Tangent, 3 point, sweep arc
      • Spline
      • Point
      • Face Curve
        • Sketch curve directly on face of body
        • Face need not be planar

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Face Curve

Creating Sketches (2)

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Line Tool

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Define line from center - OFF

Define line from center - ON

Line drawn from one end

Equidistant line drawn from center

Creating Sketches (3)

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Line Tool

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Cartesian Dimensions

Polar Dimensions

Creating Sketches (4)

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Line Tool

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Create layout curves

    • Create curves which are not immediately needed to generate 3D objects
    • Curves created are similar to a pencil drawing made on design

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Create layout curves - ON

View in 3D Mode

Create layout curves - OFF

Creating Sketches (5)

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Dimensioning

    • Specify sketch dimensions on-the-fly while creating sketches
      • Radius, Length, Width
    • Use “Tab” key to switch between dimensions

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Dimensioning Sketches

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Sketch Editing tools

    • Hosts standard tools for editing sketches
      • Fillet / Chamfer
      • Offset
      • Project
      • Create Corner
      • Trim
      • Split
      • Bend
      • Scale

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Bend tool

Editing Sketches

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    • Switching to 3D mode converts
      • All closed sketch objects to surface bodies
      • All open sketch objects to curves

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Switching to 3D Mode

Switching to 3D Mode

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    • Used to convert sketches to 3D
      • Pulling a line creates a surface
      • Pulling a surface creates a solid

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    • Distort or deform existing geometry

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    • Drag the selected object in a chosen direction when Pull tool is active

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    • Multi-functional tool
      • Extrude, Revolve, Sweep, Offset and Draft faces
      • Create Rounds (Fillets), Chamfers or Extrude edges
      • Pull a point to create Line

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    • Several tool guides available to alter its behaviour

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Modeling Tools – Pull (1)

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Select - Select objects to pull

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Pull Direction - Set direction of pull

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Revolve – Set axis of revolution

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Draft - Select entities (plane, planar face or edge) as pivot to create draft

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Sweep - Select entities (edges, lines) to sweep along

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Scale – Scale selected entities

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Up To - Select destination object

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Full Pull – Revolve 360 deg or pull upto trajectory end

Tool Guide

Modeling Tools – Pull (2)

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Tool Guide

Pull Direction

Face selected for Pull

Blue Edge selected for Pull direction

Face and its edges selected for Pull

Blue Edge selected for Pull direction

Up To

Face selected for Pull

Cylindrical face selected as destination. The selection used for Up To can come from the Structure Tree

Modeling Tools – Pull (3)

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Revolve

Face selected for Pull

Blue Axis selected as axis of revolution

Face selected for Pull

Blue Edge selected as axis of revolution

Revolve with Full Pull

Face selected for Pull

Blue Axis selected as axis of revolution

Tool Guide

Modeling Tools – Pull (4)

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Modeling Tools – Pull (5)

In the Pull tool, the Pull Both Sides

option now works in R17.0 for Helices.

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Tool Options

Round

Chamfer

Extrude Edge

Copy Edge

Pivot Edge

Face gets split

Modeling Tools – Pull (6)

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Move tool

    • Multi functional tool
      • Translate
      • Rotate
      • Pattern
    • Move handle guides the direction of movement
      • Translational movement along 3 “linear” axes
      • Rotational movement along 3 “curved” axis
    • Drag the selected object along the Move handle axis (linear, curved) to facilitate Move
    • Distort or deform existing geometry
    • Several tool guides available to alter tool behaviour

Move Handle

Translation movement

Rotational movement

Modeling Tools – Move (1)

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Tool Guide

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Select - Select entities (faces, surfaces, solids, or components)

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Select Component - Select solid

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Move Direction - Set direction of move

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Anchor - Change location of move handle

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Move Along Trajectory - Select trajectory (edges, lines) to move along

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Move Radially about axis - Move object radially about axis, line or linear edge

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Fulcrum - Select plane or edge as pivot

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Up To - Select destination object

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Orient To Object - Orient object in selected direction

Modeling Tools – Move (2)

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Move Direction

Select object for moving

Select Edge as direction. Move handle orients to align Red axis with selected edge

Drag selected object along Red axis to move

Tool Guide

Modeling Tools – Move (3)

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By default, Move handle located at centroid of selected entity

Anchor

Move handle shifted to centroid of selected “face”

Move handle shifted to centroid of selected “edge”

Move handle shifted to centroid of selected “face”

Tool Guide

Modeling Tools – Move (4)

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Highlighted edge moved along “Blue” axis with “Blue edge” as fulcrum point

Fulcrum

Tool Guide

Modeling Tools – Move (5)

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Tool Options

Rectangular Pattern

Circular Pattern

Modeling Tools – Move (6)

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Modeling Tools – Move (7)

You can now in R17.0 create a circular pattern, using the Up To tool guide in the Move tool, by rotating up to a linear entity passing through the Move Handle origin. Relocate the Move Handle to the axis of the cylinder. Then choose the rotation handle about the cylinder’s axis.

Move Up To this axis

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Modeling Tools – Move (8)

Radial Move allows you now in R17.0 to select the Axis in the Structure Tree

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Modeling Tools – Move (9)

In R17.0, The process of moving Curve/Beam endpoints to a single point has been enhanced

Select all the endpoints and anchor the Move Handle

Click the Up to tool guide and select the Up to reference

All the beams have been moved into the same point

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Fill tool

    • Fill selected region with surrounding surface or solid
    • Acts as a “healing” tool to remove:
      • Fillets
      • Chamfers
      • Holes
      • Protrusions
      • Depressions

Modeling Tools – Fill (1)

Notice: Sometimes a simple delete after

selecting the entities can replace the Fill Tool

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Modeling Tools – Fill (2)

The Fill tool can now in R17.0 account for holes in missing faces

Select the edges of the outside boundary and the interior holes and execute

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Tool Guide

Fill (Default behavior)

Fill – With Guide Curves

2 curve edges selected as guide curves

Modeling Tools – Fill (3)

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Blend tool

    • Create blend between faces, surfaces, edges and curves

Without Guiding curve

With Guiding curve

Modeling Tools – Blend

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Combine tool

    • Perform Boolean operations
      • Add
      • Subtract
    • By default, second selected object acts as a cutter to perform subtract operation
      • Cutter tool guide gets activated once a body is selected
    • Select multiple objects using “Ctrl” key to add them
      • “Merge” tool guide gets activated automatically
    • Option to delete or retain left over region after subtract operation
      • “Regions to Remove” tool guide automatically gets activated after subtract operation

Merge multiple objects

Select cylinder as cutter

Select region to remove

Modeling Tools – Combine

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Split Body Tool

    • Split solid body using:
      • Face
      • Plane
      • Planar or Cylindrical surface
    • Split surface body using edge

Select body to split

Select face to cut body

Select region to remove (optional)

Modeling Tools – Split Body (1)

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Modeling Tools – Split Body (2)

In R17.0 the Create split surfaces option has been added. It creates surfaces at the intersection of the target and cutter

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Split Face Tool

    • Split face using:
      • UV Cutter point
      • Perpendicular cutter point
      • 2 cutter points
      • Face

Modeling Tools – Split (1)

The Split Face tool is now in R17.0 the Split tool, It now works on Edges, Curves and Beams will be added later

Face to be split

Move mouse over face to preview split. Click to split face at selected location

UV cutter point

Select unwanted edges (red) to remove

R16

R17

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Split Edge Tool (new in R17.0)

With the Split Edge tool guide active, the cursor changes to indicate that only Edges are selectable.

The Split location can be adjusted by:

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    • Dragging the yellow ball
    • Entering a Percentage
    • Pressing the Tab key twice and entering a length

Modeling Tools – Split (2)

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    • Section mode helps to edit solids and surfaces by working with their edges in a cross section
    • Useful for complex models that requires repair/cleanup of internal details

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1. Remove overlap using Move tool

Enable “Select Component” tool guide and select any edge to select the solid body

Select “Anchor“ tool guide and position move handle on outermost edge

Select “Up To” Tool guide and select green highlighted edge

Body is now touching adjacent body (no overlap)

Problems with geometry:

Overlap

Small feature (fillet)

Inconsistent inner hole diameters

Modeling Tools – Working in Section Mode (1)

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    • Section mode helps to edit solids and surfaces by working with their edges in a cross section
    • Useful for complex models that requires repair/cleanup of internal details

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2. Remove small feature (fillet) using Fill tool

Select edge representing fillet

Fillet is now removed

Problems with geometry:

Overlap

Small feature (fillet)

Inconsistent inner hole diameters

Modeling Tools – Working in Section Mode (2)

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    • Section mode helps to edit solids and surfaces by working with their edges in a cross section
    • Useful for complex models that requires repair/cleanup of internal details

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Problems with geometry:

Overlap

Small feature (fillet)

Inconsistent inner hole diameters

3. Make inner holes diameter consistent using Pull tool

Select edge representing hole

Using “Up To” tool guide, select inner edge of adjacent body

Final geometry

Modeling Tools – Working in Section Mode (3)

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Detail tab

    • Create drawing sheets for the current model. Views of the design are created automatically which can then be edited or moved on the sheet.
    • Drawing sheets are saved within your design.
    • To insert a new drawing sheet go to File > New > Drawing Sheet

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Detailing (1)

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    • You can add Dimensions, Cross Sections, General Views, and Annotations
    • In the Structure tree, expand ‘Drawing Sheets’ and then ‘Sheet 1’ to show the Views on the sheet
    • To insert a new General view
      • Click on ‘General’ button in the Views Ribbon group.
      • Place the preview box in the empty area on the sheet.
      • Note: Select a View (inside the dashed grey outline) and drag to move it on the Drawing Sheet.

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Detailing (2)

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    • To view the cross-section
      • Select the ‘Cross Section’ button.
      • Select View 3 (the Side view).
      • Drag the mouse over View 1 (the Front view). As you move the mouse, View 3 should appear as a cross section.
      • Click to place the section plane.

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Detailing (3)

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    • Insert Bill of Materials
      • Select the Bill of Materials button in the Annotation Ribbon group.
      • Select Indented from the dropdown.
      • Place the BOM in the corner of the Drawing Sheet.

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Detailing (4)

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    • Add Annotation
      • You can add Notes, Dimensions, Geometric Tolerances, Surface Finish, Datum Symbols, Center Marks, Center Lines, and Threads.
      • Use the ‘Select’ tool to select the highlighted object
      • Use the ‘Dimension’ tool to create a measured dimension. 
        • Select one side of the ‘bracket,’ then the other.
        • Note: Placing a dimension with one reference will display the length of the edge, and with two references will display the distance or angle between them.
      • Use the Note tool to enter text onto the plane

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Detailing (5)

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What have we learnt in this session?

    • What are the three different Modes in SpaceClaim?
    • How to draw Sketchs in SCDM?
    • What are the different 3D Modeling Tools and how do they work?
    • How to create a Drawing Sheet?

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Summary

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Workshop 2.1 Creating Geometry

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Demo of Sketching (16:52)

Module2_Basic_Sketch.mp4

Demo of Pull (20:53)

Demo of Move (13:37)

Demo of Fill (09:58)

Demo of Combine (09:41)

Demo of Structure Tree (16:53)

Demo of Assembly (14:29)

Demo of Detailing (12:13)

Module2_Basic_Pull.mp4

Module2_Basic_Move.mp4

Module2_Basic_Fill.mp4

Module2_Basic_Combine.mp4

Module2_Basic_Structure_Tree.mp4

Module2_Basic_Assembly.mp4

Module2_Basic_Detailing.mp4

Videos available (look for separate directory)

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