I don\'t know what mechjeb is as i say i use purely stock no plugins no mods i know it tips over at 15000 soon as it starts tipping seperate stage it still has enough fuel to get you in orbit or feel free to design your own lifter for the station i used the concept design and got it into a really high orbit but i designed concept design so i know how it works feel free to design your own lifter i just wanted ppl to check the space station stock parts design but could\'nt be bothered seprating from the concept ship i used so uploaded whole craft file normally concept ship goes straight with pretty much anything but space statin weighs alot hope you have fun and you will eventually get it in orbit