attach 2D object to 3D object

[Anonymous]

Hi all, I have a quick question from a new user.

I created a 2D sketch on the X-Y plane and rotated it 180 to make a 3D object.No big deal.

Now I want to create a 2D sketch (now on the Z-Y plane but that shouldn't matter) and draw lines constrained to the prior 3D surface. Unfortunately I can't seem to find how to constrain lines I'm drawing in a new 2D sketch to the 3D surface. It's like it doesn't exist! How do I constrain 2D sketch objects (lines, curves, etc) to a 3D surface already in place?

I can select the prior sketch surface if I've not selected to draw a line, but when I select to draw something I no longer can select the 3D surface.

Does my question make sense? Thanks everyone!

[mrattray]

You need to project the 3D geometery into your sketch first.

I suggest you go through some of the tutorials, they should cover these sort of things.

[JDMather]

Attach your file here if you can't figure it out.

http://home.pct.edu/~jmather/SkillsUSA%20University.pdf
http://inventortrenches.blogspot.com/p/inventor-tutorials.html
http://wikihelp.autodesk.com/enu?adskContextId=HELP_TUTORIALS&language=ENU&release=2014&product=Inve...

[Anonymous]

Project Geometry did what I needed, thanks.