I posted this over on the factorio subreddit, but I thought I would share it here as well, I have modified the text below to reflect some of the more popular and feasible ideas from the reddit discussion. Discussion can be found here: https://www.reddit.com/r/factorio/comments/4xflge/nuclear_power_m...

Spent a while putting this together. Creates a robot every 20s. Multiple "modules" can be used to create more robots/s