Set up the shape to dimensions you have given in the 2-d editor. . .then see that little green vertice in the middle of the shape? Drag that to either left or right of the shape (depending which way you want it to go) Then press the revolve button. . .it looks like a brush with an arrow all the way around it (i think) Then you can change how much it would curve. . .i normally have the top one on 16. ..the bottom one depends on how you want it to bend, if you want a quarter circle, leave it on four, if you want a semi circle change it to 8. . .and so on. Eeek i think i said everything right. . .but there are plenty of tutes on it, and simply fiddling around with thing will help you to figure out everything it does.