To craft with a 3×3 grid, create a workbench, place it on the ground, and right-click on it. This brings up a pop-up screen which allows the player to assemble any crafting recipe in the game, as the maximum size for a recipe is 3×3.
Source
http://www.minecraftwiki.net/wiki/Crafting
A la fin du paragraphe d'introduction
Ah et voila la page pour le Workbench
http://www.minecraftwiki.net/wiki/Workbench
A la limite
https://www.jeuxvideo.com/forums/1-24777-31646-1-0-1-0-l-annexe-du-forum-minecraft.htm
Troisiemme paragraphe
http://www.youtube.com/view_play_list?p=FCE6E220F06B0E8F
des fois je vous jure ... 