Need help making a sheet metal punch tool

[riveter1000]

I am trying to make a punch tool using Extract iFeature. I have followed instructions I found online. The iFeature does not like my part. The problem seems to be centermarks. I went into my sketches and tried to make sure I only have one centermark, the one in the first sketch. But there seems to be centermarks I can't identify.

Where am I going wrong here?

Using Inventor 2013.

File attached.

[JDMather]

Almost everything you have done is not correct - starting with an Adaptive part.

 see this recent thread

http://forums.autodesk.com/t5/Inventor-General/punch-feature/td-p/4829671

Besides everything else that is wrong -

the first sketch in your Punch iFeature is Sketch3.

Sketch3 does not have a sketch centerpoint.

You could add Sketch2, but I recommend you start over from scratch.

You might also provide the url to the instructions you are attempting to follow.

[riveter1000]

Jd - I went through your tutorial. I have everything referenced to one line and only one center point. When I do the Extract iFeature it tells me there is more than one centerpoint.

Will you take a look at my model?

[JDMather · Accepted solution]

It sounds like you have Sketch1 selected - you should have only Sketch2 and everything below selected.

Show the same screen capture like you did before.

Also, why are your sketches and features showing as adaptive (red/blue arrows)?  Are you doing this part in the context of an assembly?  It seems to create a punch even though adaptive, but I recommend beginners avoid adaptive.

[riveter1000]

I turned off adaptive where I could.

Anyway, through a process of making every error and combination thereof, I got it to work.
Your tutorial was a big help JD.

The resulting standoff: