I was making a cylindrical sheet metal. I tried several methods online (including creating base flange from sketch and converting an extuded part to sheet metal) but all I got was this weird result. The bounding box is very small so when I flatten it, I only have a small piece left. How come? I followed every step from some youtude video.
Thank you very much!
btw, I am using SW2012. If I use 2013 then there is no such problem