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SolidWorks SurfacesFerdowsi University of MashhadDr. Behnam Moetakef Imani

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Surfaces in SolidWorks

Surface bodya general term that describes connected zero-thickness

geometries:

single surfaces, knit surfaces,

trimmed and filleted surfaces,

and so on.

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Extruded Surface

To extrude a surface:1. Sketch the profile of the surface.2. Click Extruded Surface on the Surfaces toolbar, or click Insert,

Surface, Extrude.

3. Set the PropertyManager options.

4. Very close to solid sweep

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Extruded Surface

Set the PropertyManager options based on thetype ofextrude feature

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Revolved Surface

To create a revolved surface1. Sketch a profile and a centerline around which to

revolve the profile.

2. Click Revolved Surface on the Surfaces toolbar, or

click Insert, Surface, Revolve.3. Set the PropertyManager options.

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Revolved Surface

Surface Revolves with Selected Contours

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Swept Surface

To create a swept surface1. Create planes for sketching the sweep profile, sweep path, and ifnecessary, the guide curves.

2. Sketch the sweep profile and path on the planes that you created.

3. If you are using guide curves, create coincident or pierce

relations between the guide curves and the profile.

4. Set the Property Manager options.

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Lofted Surface

To create a lofted surface1. Create a plane for each profile section of the loft.

2. The planes do not need to be parallel.

3. Sketch the section profiles on the planes. You can

create all section and guide curve sketches inside asingle 3D sketch.

4. Set the PropertyManager options

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Face Curves

iso-parametric (UV) curves from a face or surface.

Tools, Sketch Tools, Face Curve

Applications of this functionality include extracting thecurves for imported surfaces.

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Face Curves

Options:

Constrain to model. When selected, the curves areupdated if the model changes.

Ignore holes.

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Boundary Surface

The boundary surface feature create surfaces that can betangent or curvature continuous in both directions (allsides of the surface).

In most cases, this delivers a higher quality result than theloft tool.

Consumer product designers and others who require highquality surfaces with curvature continuity can use this tool.

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Boundary Surface

To create a boundary surface feature:1. Click Boundary Surface (Surface toolbar) orInsert,

Surface, Boundary Surface.

2. Set the Property Manager options.a) Curve callouts colors match those used in the

PropertyManager.

b) Click callouts to change the Tangent Type.

3. This feature can work with only one set of edgesselected

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Boundary Surface

Single curve to a point in one direction

Curvature combs provide visual enhancement of the

slope and curvature of most sketch entities

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Boundary Surface

Curves. Determines the curves used to create the

boundary feature in this direction. Select sketchcurves, faces, or edges to connect. Boundaryfeatures are created based on the order of curveselection

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Boundary Surface

Tangent Type

none

Direction Vector

Tangency to Face

Curvature to Face

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Boundary Surface

Check tangent types

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Boundary Surface

Example of Boundary Surface Alignment

The alignment options control alignment of the boundary surface isoparameters, which control the flow of the boundary surface.

- It depends on tangent types

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Boundary Surface

Align with next section Aligns the boundary surface iso parameters to the iso

parameters of the start and end surfaces, based ondistance.

Tangent type: tangency to face

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Boundary Surface

Align with section normal Aligns the boundary surface iso parameters normal to

the selected curve.

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Boundary Surface

Align with other geometry Aligns the boundary surface iso parameters with greater

influence determined by the end points of the selectedcurve.

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Boundary Surface

Align with iso parameter Aligns the boundary surface iso parameters to match

the flow of the iso parameters of the starting surface atthe selected curve

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Boundary Surface

Check alignment options

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Boundary Surface

Continue on direction 2

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Boundary Surface

The main advantage of Boundary Surface overLoft is that Boundary Surface can apply aCurvature boundary condition all the way around,while Loft cannot apply curvature on the guide

curves. If several edge or sketch segments combine to

form one side of a direction, then you must usethe SelectionManager to form the edge segments

into a group. SelectionManager enables you toselect portions of a single sketch or to combineelements such as sketch, edge, and curve into asingle selection for use as a profile or guide curve

for Boundary or Loft features.

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Planar Surface

You can create planar surfaces from these items:1. A non-intersecting closed sketch

2. A set of closed edges

3. Multiple co-planar parting lines

4. A pair of planar entities such as curves or edges

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Planar Surface

To create a bounded planar surface from a sketch1. Create a non-intersecting, single contour, closed sketch.

2. Click Planar Surface on the Surfaces toolbar, or click Insert, Surface, Planar.

3. In the Property Manager, select the sketch in the graphics area or FeatureManagerdesign tree forBounding Entities .

To create a planar surface bounded by a set of closededges in a part

1. Click Planar Surface on the Surfaces toolbar, or click Insert, Surface, Planar.

2. In the Property Manager, select a set of closed edges in a part forBoundingEntities . All edges in the set must be on the same plane.

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Offset Surface

Offset Surface on the Surfaces toolbar,

or click Insert, Surface, Offset

To create a surface of a solid, offset by zero

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Radiate Surface

Radiate Surface creates a surface by radiating edges of solids or

surfaces along a selected planar direction

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Radiate Surface

Radiate creates a surface that is parallel to areference plane and perpendicular from aselected edge.

The best example of a Radiate surface is a mold

parting line that goes around a plastic part.

If the parting line is not planar, the Radiate surfaceis not planar.

Radiate often has problems around sharp cornersand fillets.

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Ruled Surfaces

A Ruled surface is a standard surface type wherethe face curves in either the U or the V directionare straight lines.

Mold designers or plastic part designers frequently

use them when trying to establish drafted facesaround complex curves.

You can only make a Ruled surface from edges,

not from sketches or curves. Split Lines work because they are edges, but

Projected Curves do not.

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Ruled Surfaces

Ruled Surface

creates surfaces that extend out in a specifieddirection from selected edges

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Ruled Surfaces

Ruled Surface

Add tangent extensions to complex surfaces

Create drafted sidewalls

Replace non-drafted surfaces on imported models with drafted surfaces(using the Tapered orSweep type)

Create parting and interlock surfaces

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Ruled Surfaces

Normal to Surface

Ruled surface is normalto the surfaces thatshare an edge.

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Shape Feature not supported

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Freeform

freeform feature modifies faces of surface or solid bodies.

only one face at a time

face can have any number of sides.

Designers have direct, interactive control ofdeformations by

creating control curves

and control points, then pushing and pulling the control points to modify

the face.

Use the triad to constrain the push or pull direction.

F f

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Freeform

F f

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Freeform

Add control curves.

Adjust the display by adding transparency, zebra stripes,etc. This does not affect anything in the model itself.

Select a control curve and use the triad to drag the control

points to modify the face. Direction1 Symmetry / Direction2 Symmetry

Triad

Global

Surface

Curve

F f

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Freeform

control curves

Note on add curve

Add point

F f

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Freeform

Continuity callouts, which control the relation of themodified face to the original face before you modify it(along the selected boundary.

Contact. Maintains contact along the original boundary. Tangency

and curvature are not maintained.

Tangent. Maintains the tangency along the original boundary. Forexample, if the face originally made an angle of 10 where it meetsthe boundary, the angle is maintained after you modify the face.

Curvature. Maintains the curvature of the original boundary. Forexample, if the face originally had a normal radius of curvature of10 meters with a plane along the boundary, that same radius ismaintained after you modify the face.

F f

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Freeform

Continuity callouts,

Moveable. The original boundary is moveable but originaltangency is not maintained. You can drag and modify the boundaryusing control points just like you can modify the face. Select aboundary handle or point and drag to move it.

Moveable/Tangent. The original boundary is moveable and itmaintains its original tangency parallel to the original face. You candrag and modify it using control points like you can modify theface. Select a boundary handle or point and drag to move it.

F f

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Freeform

F f

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Freeform

Fill d S f

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Filled Surface

Filled Surface feature

a surface patch with any number of sides, within aboundary defined by existing model edges, sketches, orcurves, including composite curves.

You can use this feature to construct a surface to fill agap in a model.

It can

Correct a part that does not import correctly

Fill the holes in a part used for core and cavity molding. Construct a surface for industrial design applications.

Include features as separate entities, or merge thosefeatures

Fill d S f

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Filled Surface

Filled Surface

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Filled Surface

Filled Surface

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Filled Surface

Filled Surface

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Filled Surface

Filled Surface

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Filled Surface

Mid Surface

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Mid-Surface

Mid-Surface

create mid surfaces between suitable selected face pairs on solidbodies.

Suitable face pairs should be offset from each other.

The faces must belong to the same body.

Examples of suitable face pairs include two parallel planes, or twoconcentric cylindrical faces.

Mid surface is useful for generating meshes of two-dimensionalelements in finite element modeling.

Parting surfaces

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Parting surfaces

Parting surfaces extrude from the parting lines

used to separate the mold cavity from the core

Tangent to surface. Parting surface is tangent to the surface ofthe parting line.

Normal to surface. Parting surface is normal to the surface of theparting line.

Perpendicular to pull. Parting surface is perpendicular to thedirection of pull. This is the most common.

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(1.

Radiate surfaceRuled surfacenormal to surface

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2-freeform

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3-

free form