Wrapping Ellipse around Cyclinder

[Anonymous]

Hi,

This question below regards post#6 in the thread below (JD Mather spotted the difference)

https://forums.autodesk.com/t5/inventor-forum/pattern/td-p/7238290

Are you aware that Extruding the Ellipse to Offset surface is not the same as wrapping ellipse around cylindrical surface?

Using the model from Post#1 in the thread above how would you wrap the Ellipse around a Cylindrical surface?

Thanks

Richard

[Anonymous]

Hi

Follow the steps in pictures

1. Create your Cylinder, constrain your sketch to origin point

2. At the mid plan draw you ellipse

3. Extrude it for any distance greater than required

4. At the top of cylinder draw 2 circles, the smallest is the thickness that required for the Ellipse

5. Create an Extrude CUT to get rid of the unnecessary part of the ellipse

4.

[Frank-Oosterwaal · Accepted solution]

Hi,

Look at the screencast, you can use emboss and select "Wrap to face". 

Hope it's clear, good luck!

[johnsonshiue]

Hi Richard,

Yes, Emboss should be the chosen command for wrap-around request. To understand how Emboss works, you can actually manually create the geometry without using Emboss command. Here is what you need to do.

1) Create a 3D Sketch -> Project Curve -> select Wrap Around -> pick the cylindrical face as the face -> pick the ellipse as the curve -> Ok. The ellipse will wrap around the cylinder.

2) Split -> Face Split -> pick the 3D curve as the tool -> pick the cylinder as the face to be split -> Ok. The face will be split.

3) Thicken -> pick the wrap-around elliptical face.

This is the elaborated version of how to create an Emboss without using Emboss feature.

Many thanks!

[JDMather]

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@johnsonshiue wrote:
...

3) Thicken -> pick the wrap-around elliptical face.

This is the elaborated version of how to create an Emboss without using Emboss feature.

Many thanks! 

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The advantage to the more elaborate technique that @johnsonshiue describes is that you can create the Thicken feature as a multi-body solid (New Solid).  You might use a technique like this where, for example, your real world design intent is to wrap an flat elliptical emblem around a cylinder.  An Extrusion will not result in correct geometry.  An Emboss does not allow for a second body.

Another similar application of this technique is for creating RePads (Reinforcing Pads) for sheet metal tanks.

[JDMather]

@Anonymous

This is how I interpreted the question.

[johnsonshiue]

Hi JD,

Great point! It also highlights the need to have New Body option for Emboss. There is no reason why any sketch-consuming feature (body generating) should not have New Body option. This option can enable a lot of workflows. For example, patterning Emboss as a separate body along a direction or a curve which may lead to modeling challenge if it is patterned as a feature.

Many thanks!