from Civil to Inventor

The Autodesk enthusiast exile

Inventor – 3D Intersection Curve

We recently reviewed Garin Gardener’s 3D sketching post, and highlighted the 2D and 3D sketching.  There was 1 point remaining that we didn’t have time to get to:

3D Intersection Curve

3D Intersection Curve is a feature that intersects in 3 dimensional space, the projected geometry from 2D sketches on intersecting planes (did that make any sense?)

Here we have a 2D sketch as well as a work plane created for the second sketch.

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We need a new 2D sketch on the work plane. Don’t forget to project the geometry needed to work from (I used the endpoint of the line in the first sketch.  See below)

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Now draw the geometry that will represent the ‘upper profile’.  Here I added some basic dimensions, and used the dimension from the overall length of the first sketch to feed the overall length of the second sketch.

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Once that is complete, we need to return out of that, and create a 3D sketch to apply the Intersection to.

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Once inside the 3D sketch environment, the Sketch panel shows the 3D Intersection Curve Feature. 

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You should see the 3D Intersection Curve dialog appear with very simple options.  Curve 1 and Curve 2.

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Select the Geometry for Sketch 1, and then for Sketch 2.

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The 3D Intersection Curve appears.

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We can adjust the curve by dragging the geometry in our 2D sketches about, or adding dimensions.  It sort of plays along the lines of ‘top down modeling’.

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Below you should see the updated curve.

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So, we went through all this, it’s a shame not to add a sweep feature.

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…the swept model.

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This was such a fun post.  Inventor totally rocks.

Oh, and thanks to Garin Gardener.  That was a good Podcast. Keep up the good work.

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February 11, 2009 - Posted by | 2009, 2D Environment, 3D Features | , , , , , ,

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