While waiting for my 3D printer to arrive I have searched, read, downloaded, installed and tested (played with) so much that my head is ready to explode. One thing that is obvious is that there isn't much O scale available online that is ready-to-print (free or otherwise). I won't get into scaling here... because, it isn't always lineal and even that may be beyond someone's ability. Why should parts that are unavailable be continually modeled? Would it be helpful to *all* if we had a Repository for O scale 3D files to make it easier for everyone to find/upload/download these files?
I will make any of the 3D files I create freely available to all forum members (without having to do so privately) via ftp. I have quite a bit of storage/backup space (around 20TB) and 2 machines that run 24/7 as well as decent bandwidth... 200MB Up & Down.