Constrain to origin in 3D sketch

[danzco]

How is this accomplished in Inventor?  The 3D sketch environment seems intentionally crippled.  Many of the constrains are not available, and the "include geometery" command refuses to include the origin (or any other planes and axis for that matter).

[cwhetten · Accepted solution]

In the 3D sketch environment, it isn't necessary to project (include) the origin geometry like it is in the 2D environment.  You can simply apply constraints and dimensions directly to them.  They need to be visible first so that you can select them.

The Include Geometry tool is used to bring in geometry from other features, similar to the way Project Geometry works in the 2D sketch.

[danzco]

Oh that is awesome. That's how 2D sketching should be too.  Thanks.

[JDMather]

Nearly all 3D sketches I use are actually created from 2D sketches (Include Geometry, intersecting curves or trace over) as it is much much much easier to edit 3D sketches from underlying 2D sketches.

http://home.pct.edu/~jmather/content/DSG322/Inventor%20Tutorials/Inventor%2011%20Tutorial%207.pdf

[cwhetten]

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@danzco wrote:

Oh that is awesome. That's how 2D sketching should be too.  Thanks.

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Amen to that!

[Wynand_Louw_Aranzu]

Don't agree with "That's how 2D sketching should be too", it is just how Inventor works. But you can also (1) draw a line from the origin to the point you want to align to it, (2) align the drawn line to an axis, (3) add a dimension and 0 it.