These are unfinished meshes and I do not expect them to be stable. Trying to stabilize a mesh you're not through changing is likely to be an excercise in futility. These are not game ready models. Some may be more stable then others (the Saber being one least likely to be stable) as I have played around with some of them longer then others. I am absolutely sure the medium/high poly versions of the Whale aren't stable, but they triangulate pretty easily. The Hope's domes need work too. They're supposed to be seperate subobjects but in that version aren't seperated yet and will probably have to be triangulated. The Hope's main hull also has at least two groups of faces that need work. That's one of the few models I've actually tested in game.
As far as that tutorial, I'd never heard of that one until today (when I saw links to it in other posts) but will look through that. I did look at the stable geometry thing and I already knew about rules 1 and 2. (D3 modelling/level editing calls faces that break those rules non-planer faces and I have tried to avoid making them but haven't gone through and checked every single face to make sure they are planer yet. If I did that and edited the geometry more I'd have to go and do it again so I save that for the last step.) Rule 3 is something I never heard of before but I will keep it in mind.
For modelling I use Wings3D which is available for free and is a lot easier for me to use then Truespace 1/2. I do not have TS 3 or better, do not have the money to buy them even if I wanted to spend that kinda money on what is for me a minor hobby, and all the readmes, faqs, and posts about TS demos I've seen noted that saving files was disabled which would make the demo useless for ship building. And if it isn't, then when the demo period ran out I wouldn't be able to use the TS5 cobs anymore since I doubt LithUnwrap would be able to open cob files from TS versions newer then it. (Though I haven't tried that.) I will look into the demos again, but I will be surprised if they will be very helpful. (If the interface is as clumsy as TS1 then it'd likely take me more time to learn the program then the demo would allow.) Wings3D is much more intuitive then TS1 and mine actually has usable UV mapping stuff.
