Hopper flange

Inventor practice 3d model.......This not about the actual part but good sketch and model practices in Inventor,http://inventortrenches.blogspot.ie/2011/03/inventor-101-simple-fully-constrained.html,the link for people to read and follow,file uploaded to see,obviously a simple part but follow the link to see how easily you can make hard work for yourself on several levels,recommended to any parametric modeler!I have uploaded a few to help anyone starting use link to get the drawing's