modeling question

ok, I’ve mirrored one half of my model with Alt+D. How do I make the two halves one mesh? As it stands now if I select one half and move it to the left, the two halves separate. I’ve been through all my notes but can’t find the solution. I have a feeling it’s something simple.

alright go into object mode hold shift and select both objects then press Ctrl+J to join them into one mesh

thanks! I new it was something simple!

Don’t forget to select all the vertices in the middle (where the two meshes touched) and remove doubles. You’ll probably have to recalculate normals also, Ctrl-N.

meckle & Duoas, thanks for the help