Greetings!

I've decided to make a platform bed for my son out of hard maple for the side rails and walnut for the corner pieces that join the rails together. I'd like to use sliding dovetails (oriented vertically to make breakdown simple) with the male portion on the end of each side and end-rails with the female portion in the corner pieces. I am having trouble figuring out how to cut the dovetails in the ends of 84" long pieces. Thanks in advance for any ideas.