mirror oldobj newobj axis
This command is used to create a new object which is the mirror image of an existing object about an axis. The object may be either a solid or a combination. In this case, a mirror image of the object "oldobj" will created about the axis indicated by "axis" and the new object record will be called "newobj". The only acceptable values for the parameter "axis" are "x", "y", and "z".
Examples: mirror tur.left.s tur.right.s y mirror tur.top.s tur.bot.s z mirror tur.front.s tur.back.s x mirror lt_gunrt_guny