Good morning everyone I’m new here and fairly new to composite making so I may well ask some really stupid questions! I have made a part and I now need a mirror image of it for the other side of the project. Does anyone know of a way of doing this without starting all over again for the other side? Many 5hanks 

If you can't invert it (which virtually means if it is anything but a simple 2D shape), then you're out of luck. Welcome to pattern making!