I have multiple pieces that need to fit with high tolerances, so I decided to 2D sketch all the pieces on one part file. Now That I have all my geometry in place, I extruded the first piece to the right dimensions, but lost the ability to extrude the other parts. I have tried going to the sketch on the manager tree, when I select the right sketch I can see the geometry. When I go to edit the geometry or extrude it, it disappears. Can someone tell me what I am doing wrong? Maybe there is a better way to actually draw multiple parts in a better fashion. Any responses would be a great help

Thanks,

John