608 part modeling in solid edge - a hands-on experience - doug stainbrook

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Part Modeling in Solid Edge:

A Hands-on Experience Doug Stainbrook

SIEMENS PLM Software

Solid Edge Field Support

© Siemens AG 2012. All Rights Reserved.

Siemens PLM Software Page 2

Presenter background

Presenter background:

Doug Stainbrook is the team leader for the Solid Edge Field Support Team. This group is the technical resource for supporting Solid Edge pre-sales activities around the world. Before coming to the Solid Edge team, he spent about 10 years as a designer for various industries. In 1999, Doug was hired as a Solid Edge Application Engineer in Philadelphia, PA. In 2000, he came to Huntsville, AL, to the home of Solid Edge to work in the Field Support group.

Areas of Expertise:

Synchronous and Ordered Part and Sheet Metal modeling



Our Challenge

Design challenges to be solved

Design an ergonomic seat for the motorcycle using the integrated design environment

How Solid Edge meets the challenge

Solid Edge is the best solution for a top-down design process for modeling complex parts. The synchronous tools make creating, manipulating, and tweaking the design easy… and FUN!



Hands-on Part Modeling

Open the Assembly

Open the top level assembly called: _SE Motorcycle.asm

Use the open as Last Saved option




Seat Design

The last part in the PathFinder is the New Seat Design part

Check the box next to the part name to display the part (sketch)




Seat Design

Select the NewSeatDesign.par in PathFinder and edit in place by clicking this command in QuickBar.

Note there is a profile sketch of the new design already there.

Solid edge has GREAT sketching tools which make creating this profile very easy

Closed sketches create regions in synchronous modeling

We will start the design by working on ½ of the design and will later mirror it to create the opposite side




Extrude

Toggle on the display of the background parts by clicking CTRL+Q

Select the region and extrude 130.00mm




Unlock Dimensions

Note the locked dimensions from the sketch migrate as locked dimensions to the 3D model

We want to unlock these dimensions for more free- form synchronous edits

Select all of the dimensions in PathFinder and right mouse click to select Unlock Dimensions from the menu

Click CTRL+Q to hide the background parts




Dimensional synchronous edits

Now we can use the PMI dimensions that migrated from the sketch to drive the design of the 3D model

Change the radius on the back of the seat from 1116.78 to 1125 mm

Change the length of the bottom angled face from 270 to 325 mm toward the back of the seat

Click the box next to the PMI node in PathFinder to hide all dimensions




Add Rounds

On the underside of the seat add 250 mm radius rounds




Add Angles

We want to add angles to the front and back for aesthetics and clearance with the faring.

Create a line on the side face of the seat

Lock to the side face plane

Draw a vertical line from the endpoint of the large radius at the rear of the seat down to the angled face




Add Angles

Create another line from the end of the top arc to the end of the bottom arc as shown




Add Angles

Next we will add two construction planes; one at the end of each sketch element

Create 2 planes using Normal to Curve




Add Angles

Using the line command, lock to the plane (F3) on the vertical line at the rear of the seat

Use CTL+H to rotate to the sketch plane

Sketch an angled line from the pierce point at a 14° angle from the side of the seat angling toward the back as shown




Add Angles

Repeat this by using the line command and locking to the other new plane

Click F3 to unlock from the first plane

Use CTL+H to rotate to the sketch plane

Sketch an angled line from the pierce point at a 6° angle from the side of the seat as shown angling toward the front




Extrude (Remove)

Select the Extrude command

Set the options to Single, Through All and Remove in QuickBar

Select the angled line and point the arrow toward the material to be removed

Cut in both directions




Extrude (Remove)

Repeat this procedure on the front of the seat

Select the Extrude command

Set the options to Single, Through All and Remove in QuickBar

Select the angled line and point the arrow toward the material to be removed

Cut in both directions

We can delete the sketches




Mirror the Body

Hover the cursor over the model and right mouse click to bring up Quick Pick

Select the Design Body from the choices

Select the Mirror command and mirror the body about the Front Plane (x,z)




Sync edits

Lets add some style to the part by rotating the angled face

Select the face and move the steering wheel to the bottom linear edge

Click on the torus and rotate the face 15°




Sync edits

We will make the seat wider by stretching the mid-face

Use the option to Tip the adjacent faces

Key-in 40.00 mm




Clearance for frame

Click CTRL+ Q to display the background parts

Notice the frame that is penetrating the seat

We will borrow this geometry from the surrounding parts to create clearance




Clearance for frame

We need to temporarily hide our design body to be able to easily select the faces we wish to copy into our part as construction geometry.

Right click in space the access the context menu

Select Hide All and then Design Body

After hiding the design body zoom in on the seat area




Inter-Part Copy

Next we want to borrow faces from the surrounding parts to create clearances in the seat

Select the Inter-Part Copy command

Select the frame piece under the seat

With the Face selection option, pick the top face of the frame

Change the selection option to Chain and select the side faces to copy into the part




Inter-Part Copy

Repeat this procedure to include just the side face from the frame member on the opposite side

Change the selection option to Chain and select the side faces to copy into the part





Offset, Extend and Trim the copied surfaces

The seat will mount directly on top of the frame, so we simply need to copy the top face and remove the External Boundaries





Now we will need to add clearance along the sides

Offset the side faces 2.00 mm

Use the chain option

Use the option to Remove boundaries

Offset to the outside

Repeat the process on the opposite side





Hide the inter-part copies by unchecking their display box in Pathfinder

Next we want to extend the top face and the two offset side faces so that they completely intersect each other and extend through the seat

After starting the command, select the inside edge of the top face and drag past the edge of the opposite side face





Extend the outside edge to remove the small gap between the top and near side face





We also need to extend the side face so that that they completely intersect the bottom faces of the seat

After selecting command use the Edge option to select the 4 elements that make up the bottom edge of the surface

Extend down 140.00 mm

Repeat this on the opposite side





Use the Trim surface command to trim the top face to the offset side faces

Select the top face first and then using the Body option, select the side face

Point the arrow to the outside for the area to trim away

Repeat on the opposite side





Lets now stitch the 3 surfaces together

Select the command and pick the 3 faces and using the default options, stitch them together





Right click in space and to select Show All Design Bodies

The stitched surface needs to extend through the rear of the seat





Run the extend command again and drag the 3 edges through the seat

About 300 mm




Boolean

Finally we will use the stitched surface to Boolean subtract away from the seat




More clearances needed

Click CTRL+Q to display the background parts

There is also interference between the seat and the red frame and the fuel tank

Create inter-part copies of the frame piece and fuel tank

Use the body option






Make the fuel tank the Active design body by right clicking on it in the PathFinder and selecting the option to activate it

Create a 5.00mm offset surface of the 5 end faces of the tank





Again we will need to extend the bottom edge of the offset surface through the bottom of the seat

Boolean subtract the offset surface away from the seat





Again we will need to extend the bottom edge of the offset surface through the bottom of the seat

Boolean subtract the offset surface away from the seat





Make the other construction body (frame piece) the active assembly body

We can see that the front faces of the seat are thin and the frame cuts into the angled face

Lets rotate those side faces to add more material





Select the angled front face of the seat

Select the steering wheel origin and drag to the edge of the face

Using the torus of the steering wheel, rotate the face -3.00°

Note the opposite side is symmetric and also rotates 3.00°





Offset the cylinder of the intersecting frame 2.00 mm

Boolean subtract the offset surface from the seat





Make the design body the active body in the file

Create a plane normal to curve

Select the edge and drag to the endpoint





Using the line command, lock to the new plane (F3)

Use CTL+H to snap to the sketch plane and draw a vertical line from the silhouette point of the arc through the bottom edge of the part





We will now use this sketch to create and extruded surface

Extrude the surface symmetrically

Now we will Boolean Subtract this surface from the seat as well





Now we will mirror this cutaway to the opposite side

Select the two surfaces making up the cutout

Select the Mirror command and mirror about the Front Plane (xZ)




Add Rounding

The final step is to add rounding to our new seat design

A very good practice is to use the integrated design environment to add ORDERED rounds to our part

This avoids synchronous faces being consumed by rounds and therefore limiting its edit ability

Right click in space and select Transition to Ordered from the context menu or select Ordered from the Tools tab




Add Rounding

Add 50.00 mm round to the top of the rear radius

Add 10.00 mm radius to each front bottom edge of the seat




Add Rounding

Add 150.00 mm rounds to the angled face edges on the sides




Add Rounding

Add 20.00 mm rounds to the edges shown




Add Rounding

Add 10.00 mm rounds to the Front edges as shown




Add Rounding

Add 3.00 mm rounds to the cutaway areas




Paint

Using Part Painter, paint the middle surfaces of the seat yellow

Part Painter is located on the View tab




Synchronous edits

Even from the Ordered mode, we can make synchronous edits to the seat

Select the angled face at the rear of the seat

Drag the steering wheel to the bottom edge and rotate the face -10.00°




Synchronous edits

Select the top face of the seat and make it 8.00 mm thicker

Close and return to the top level assembly




CONGRATULATIONS!




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608 part modeling in solid edge - a hands-on experience - doug stainbrook