[DonRotolo]

I need some help with Inventor (Professional 2011 Student Edition).

I have a solid that looks like a barbell, and I want to split off some of one end of the 'barbell'. One image below shows the end in question, and the work planes (in yellow) at the places I want to split.

When I use the Split command, it wants to split off in the plane, but along the entire length of the part, not just the one end. The red plane shown in the second image shows what it wants to split off (not perfectly clear, but the split does extend through the far end "barbell").

How do I split off these bits at one end but not the other?