【转帖】cut a rectangular pocket into a cone

yang686526

cut a rectangular pocket into a cone
i hope someone can help or advise on how i can cut a rectangular pocket in a cone (the depth must stay concentric to the cone). my only way... so far... is to sketch a rectangle and then cut / revolve the required number of degrees. unfortunately this give a pie shaped pocket whereas i need the sides to be parallel.
i have made a quick model (sw2009 sp-0)if any one can help i would really appreciate it  
ralph
here's one way.

thank you for your help. it should do what i want.. and give me the opportunity to learn a new feature.