This is my OO gauge model of a DLR (Docklands Light Railway) P86 train, the original stock that was used on the railway in the 1980s. This is more of a 'train set' style model and it comes as three separate files : body (you'll need to print two), chassis and accessories. That will allow you to print a complete articulated unit on three bogies. Donor bogies are from an old HO Bachmann F9 unit, which are ubiquitous and very cheap to buy on-line and at swapmeets. Not an accurate kit, but it makes a passable P86!