* See more details on the calculator link The website returned the following quantities per minute for the items I used to put on the main bus (using medium machines and a red belt): I used the Factorio Calculator to plan a factory that would produce a Rocket every 25 minutes and 40 scientific kits each per minute (the number of kits was a little random, I don't know what number would be good). I would like some tips on what to put on the main bus.