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Another method of creating partlines is by using the Fillet Flange and Tube Flange tools.

1 Fillet Flange Tool

Start by creating the following geometry in the top view:

LEARNING DESIGN WITH ALIAS^. STUDIOTOOLS,.

• Create a closed circular curve and one that extends over the edge of a rail as shown.

• Project both curves onto the surface to create two curves on surfaces.

You will use the circular curve on surface with the Fillet Flange Tool, the other with the Tube Flange Tool.

To use the Fillet Flange Tool, go to:

• Palette Surfaces Rolled Edge -± Fillet Flange —>

• In the options, choose a small Radius such as 0.05 and turn Off the Create Flange checkbox.

Project curves onto surface Fillet flange options

Tip: The Create Flange option would give you a wall, which can be useful if you want to create a true partline groove.

• Now click on the circular curve on surface.

You will see a locator with a preview of what the radius will look like.

If necessary, you can move the locator by clicking on the blue sphere. You can also change the radius in the fillet flange options window to see the effect.

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Rolled

When done, click on the Recalc button to create the fillet.

This will create the fillet. If the result looks satisfactory, you can now easily create the other side of the partline.

Fillet flange radius Created fillet

In the fillet flange options window, click on Next.

Check the Flip box under Fillet.

Click on the circular curve on surface again.

Notice that the fillet radius is now flipped.

Click on the Recalc button.

You will receive the second fillet, but this time it is on the opposite side.

Finally, since the Fillet Flange Tool already created additional curves on surfaces around its edges, trim away the gap between the two fillets to evaluate the result.

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2 Tubular offset

For the second curve on surface, you will use the Tube Flange Tool. First, you need to make a Tubular Offset of the curve on surface.

Go to Palette --> Surfaces —* Rolled Edge -> Tubular Offset —>

In the options, set the Surface to None, and choose a small radius such as 0.1.

Click on the curve on surface.

Notice the blue preview of how the offset will look.

Click on the Recalc button to execute the offset.

Notice that you will get two equally spaced curves on surfaces. These are essential for use with the Tube Flange Tool.

Tubular offset curves

3 Tube flange

• Go to Palette —> Surfaces —> Rolled Edge —*Tube Flange >

• In the options, set the Radius to 0.08, which is slightly smaller than the offset you created earlier.

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Lesson 07 Rolled err

This will leave a small gap, which is more accurate to a true partline.

• Set the Sweep Angle to -270 and turn the Flip option beneath it to On.

Check Create Flange and set the length to 0.05.

• Click on your first curve on surface.

You will get a preview locator like before. Notice the small grey line at the end of the locator; this is the flange length.

Tube flange options Tube flange b earer

• Click on the Recalc. button to create the new surfaces.

• With the tube flange option window still open, click on Next.

• Click on the second curve on surface.

It is not necessary to make any changes in the options for this tool.

• Click on Recalc to create the second set of surfaces.

• Trim away the surface between the two fillet surfaces to evaluate the result.

Tube flanges created Finished tube flange

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The main difference between tube and fillet flange is that the tube will give you a radius that is on the curve on surface, which is why you needed to first create the offset.

Conclusion

In this lesson you learned how to use the different Rail Tool options and also created two different rolled edges for partline indication. The next lesson will utilize some of the methods taught and apply them towards building a mobile phone.

In this lesson you will use all tools explored thus far to create a mobile phone.

By now you have a variety of options on how to construct the volumes, and the following workflow is only one example to get you started.

In this lesson you will learn how to:

• Use rails to create basic surfaces;

• Project physical curves;

• Create a bevel detail;

• Use draft surfaces;

• Use offset surfaces;

• Project tangent;

• Add details.

Lesson

Body

1 Top surface

Start by bringing out two curves and create a rail surface as shown in the previous lesson.

Sketch the longer Rail curve in the side view.

Snap the first CV of the Generation to that curve.

Continue placing CVs in the back view.

Make sure that the second CV of the generation curve is placed perpendicularly by holding down the MMB.

Create a rail surface with implied tangency for the centerline.

Create a new layer for the curves and turn it invisible.

Assign the rail surface to a new layer and turn on symmetry.

Make sure that there are no seams down the center.

Next, turn on patch precision to better evaluate the geometry. With the surfaces still active, go to:

• Palette —> Object Edit —> Patch Precision.

• Click+drag anywhere in the window.

The surfaces will get additional patches that do not increase rendering time, but help in evaluating the geometry. You can also enter numbers in the promptline to adjust the amount of patch precision.

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2 Bevel

To create a bevel detail, you will sketch out two more curves. These two curves will mark the width of the bevel.

Sketch out two curves in the top view as shown.

Make sure that each of the first and last two CVs are lined up vertically from the centerline, and that they are within the rail surface.