Horizontal and vertical sketch constraint

[Anonymous]

In the machining section of a weldment:

Sketches on the X-Y plane (view cube "front"), Y is vertical on the UCS and the vertical sketch constraint is vertical.

Sketches on Y-Z plane (view cube "right"), Y is vertical on the UCS and the vertical sketch constraint is horizontal.

WHY?

[johnsonshiue]

Hi! This has something to do with how Inventor chooses the default sketch coordinate. There is room for improvement for sure. In the meantime, if you want more predictable sketch coordinate, I suggest you consider using UCS. In this way, the sketch coordinate is always X and Y regardless of orientations.

Many thanks!

[Anonymous]

Please excuse my ignorance on this, but how do I create a sketch using the UCS in the machining section of a weldment so the orientation will be as you describe?  Depending on the application, I am either using an origin plane, user plane or surface as the sketch plane.

Keep in mind, "it is what it is" is also an acceptable answer.

Thanks,

Rick

[johnsonshiue · Accepted solution]

Hi Rick,

I don't think you can create UCS within Machining folder in a Weldment assembly. What you can do is to create assembly-level UCS or part-level UCS. Then you can create assembly sketch on one of the planes within the UCS.

Please note that assembly-level UCS is parametrically driven, meaning it is driven by 3 distance parameters and 3 angular parameters. For part-level UCS, it can be geometry-based (pick three vertices), or parametrically driven just like assembly UCS. Could you try it out?

Many thanks!