Quick question regarding sheet metal flat patterns. I modeled a very simple rolled cylinder with a top lid for example for posting. If I leave the lid off and just keep the basic cylinder in the model, when I go to put the thing on a drawing, in the view pallette I can pick "flat pattern" as an option. Then if I put a top lid on the cylinder and do the same thing in the drawing, the flat pattern view is no longer there. For modeling the cylinder, I know there are many different ways. All I did was just draw a circle and split the line to make a 1/32" gap, then extrude it using the thin feature to create the wall thickness. I think this way is ok but the option for putting the flat pattern on the drawing no longer is there once an "unmerged" top lid is put on. I am using "insert bends" and picking on one of the edges at the seam on the cylinder and I can flatten it in the model itself so I must be doing some wrong that its not showing the flat in the view pallette. Any advice? Thanks.