I'm having a bit of trouble with two things: 1. Having created a cylinder with a hole through it, I want to select the flat face at each end. For cylinders in which this face is wide (a large difference in diameter of inner and outer circle), there's no problem either clicking on it with the mouse, or selecting it using find. However, if I make a thin walled tube, the end surfaces can't be selected with either the mouse or the search option. Is there a simple way to solve this problem? 2. Having made a circle to extrude, there is a lower limit on the extrusion depth (the diameter is 20m, whilst I want a depth of only 0.3mm). I'd be grateful for any help. Thanks, Gwilym
